draive chain - tsubaki make sure to refer to design data, selection criteria and instruction...

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ISO9001International Organization for StandardizationGlobally Recognized Certified PlantsTSUBAKI chain plants were the first in Japan’s chain industry to obtain certification of the International Standard of QualityAssurance. Accreditation of this standard certifies that “TSUBAKI, as a manufacturer, carries out quality assurance mea-sures from the customer’s standpoint.”

� Customer Advantages1. A manufacturer that carries out quality assurance measures from the customer’s standpoint.2. When a customer exports a machine to another country, reliance and evaluation will be heightened if the parts used were

manufactured by a certified plant. 3. Elimination of plant inspections by the customer curtails futility.

“JQA Quality Assurance Registered Enterprise”TSUBAKI chain plants fulfill “ISO9001” standards and have received certification as being a registered “JQA QualityAssurance Enterprise.”

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A Quality Assurance system recognized not only do-mestically, but globally as well.By capitalizing on our numerous achievements and distinctive technology, wewill provide piece of mind and satisfaction to our customers around the world.

(1) Outstanding QualityWith its outstanding quality recognized all over the world, RS Roller Chain is contin-uing to make remarkable progress as the heart of all transmission gearing.

(2) Superior Economical EfficiencyWith excellence in production technology, the “RS” mark demonstrates a remark-able improvement in product life and superior economical efficiency ranging frominitial outlays to ongoing running costs.

(3) Abundance of Product GroupsWe have the easiest to use chain series available to satisfy all your transmissionneeds.

Roller Chain that continues to evolve and meet our entire customer needs.

TSUBAKI DRIVE CHAIN

Providing “Best Value” to all our customers around the world.3

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� RS®ROLLER CHAIN

� LUBE-FREE ROLLER CHAINLambda (Λ) Roller Chain

X-Lambda (X-Λ) Roller Chain

� HEAVY DUTY ROLLER CHAINSUPER Roller Chain

RS-HT Roller Chain

SUPER-H Roller Chain

ULTRA SUPER Roller Chain

� CORROSION RESISTANT ROLLERCHAIN(Surface Treated Series)

NP Roller Chain

WP Roller Chain

DP Roller Chain

(Stainless Steel Series)

SS, LS, NS Stainless Steel Roller Chain

AS Powerful Stainless Steel Roller Chain

(Poly Steel Series)

PC, PC-SY Poly Steel Chain®

(Ultra Corrosion Resistant Titanium Chain)

TI Roller Chain

� LOW NOISE ROLLER CHAINSN Roller Chain

5

ContentsBefore UseRoller Chain Safety Use …………………………………… 7

General Comparison of Transmission Elements ………… 8

Features & Points to Note about Roller Chain

Transmission ………………………………………………… 8

Explanation of Terms ………………………………………… 9

Roller Chain Structure ……………………… 11

Roller Chain Types / Selection …………… 14

Roller Chain Dimensions / SpecificationsStandard Roller Chain

RS/RF Roller Chain …………………………………… 17

RS Kilowatt Ratings Table …………………………… 28

Lube-Free Roller Chain

Lambda-Λ Roller Chain ………………………………… 35

(Double-strand) ………………………………………… 37

X-Λ Lambda Roller Chain ……………………………… 38

(Curved, BS) …………………………………………… 40

Lambda Kilowatt Ratings Table ……………………… 41

Heavy Duty Roller Chain

SUPER, RS-HT, SUPER-H, US, RO ………………… 44

SUPER Kilowatt Ratings Table ……………………… 51

Corrosion-Resistant Roller Chain

Surface Treated (NP, WP, DP), Stainless Steel Chain

(SS, LS, NS, AS), Poly Steel Chain (PC, PC-SY),

Titanium (TI), Cold-Resistant (KT) …………………… 55

Low Noise Roller Chain (SN) ……………………………… 63

Curved Chain, BS/DIN Chain Series ……………………… 67

Roller Chain Peripheral InstrumentsChain Cutting Tools ………………………………………… 71

Chain Connecting Tools …………………………………… 71

GENE

RAL

CHAI

NPE

RIPH

ERAL

INST

RUM

ENTS

SELE

CTIO

NM

AINT

ENAN

CEOR

DERI

NG

6

Roller Chain Selection1. Selection Guide ………………………………………… 73

2. Service Factors …………………………………………… 74

3. Roller Chain Provisional Selection Chart ……………… 75

4. Selection Formulae ……………………………………… 76

5. General Selection ………………………………………… 79

6. Slow Speed Selection …………………………………… 81

7. Slow Speed Selection (Special) ……………………… 83

8. Selection Method for Lifting Transmissions ………… 84

9. Selection by Temperature …………………………… 88

10. Special Selection Method for Corrosion-Resistant

Roller Chain …………………………………………… 88

11. Anti-Corrosion Reference Guide for Corrosion

Resistant Roller Chain ………………………………… 89

Roller Chain MaintenanceCautions on Roller Chain Maintenance ………………… 91

1. How to Cut Roller Chain ………………………………… 92

2. How to Connect Roller Chain …………………………… 93

3. RS Roller Chain Lubrication …………………………… 94

4. RS Roller Chain Installation and Layout ……………… 96

5. Chain Test Run …………………………………………… 98

6. Roller Chain Inspection ………………………………… 98

7. Cautions on Use in Special Environments …………… 102

8. Roller Chain Drive Troubleshooting and

Problem-Solving ………………………………………… 103

Ordering Roller Chain ………………………… 107

0WARNINGGreat care has been taken in the manufacture ofthe chain products, etc. shown in this catalog.However, when an error is made regarding selec-tion, handling, and maintenance or actions relatedto these are inadequate, cutting of the chain orbreakage, etc. may occur resulting in a serious ac-cident. Please make sure to refer to design data, selectioncriteria and instruction manuals, etc. before usingchain. In addition, don’t hesitate to contact themanufacturer for confirmation if there is anythingyou are unclear about.

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Before Use

The Kilowatt ratings tables inthis catalog (excluding SUPERChain) are for RS Roller Chains/ Lambda Roller Chains whereCLs having undergone the ringcoin process and 2-pitch offsetlinks are used.

This Drive Chain Catalog outlines the important points relating to selection, installa-tion, and maintenance of each TSUBAKI Roller Chain. The values shown are in accor-dance with SI International Units (GRAVIMETRIC UNITS). Make sure to read this cata-log before using the chain, and follow the correct selection procedures and method ofuse. Furthermore, please fully explain matters relating to installation and maintenanceto those performing these tasks.

Ordinary Transmission

Shuttle Traction

Pin Gear Drive

Lifting Transmission

A Drive Chain Selection Programoffering “General Selection” and“Slow-Speed Selection” of 6 chaintypes (BS/DIN, ANSI 80th, LAMBDA,SUPER SERIES, DP and WP) isavailable on request.

0Roller Chain Safety Use

� Clear the area of all personnel when lifting Roller Chain.� Install safety equipment to prevent injuries and damage to equipment in the event

of Roller Chain breakage.� Inspect and replace worn Roller Chain periodically.� Wear elongation may cause Roller Chain to break and climb up on the sprocket.

(Wear life can be extended by periodically applying lubrication, or by using thelube-free Lambda Chain series.)

� Overload may cause Roller Chain to break.(Overload breakage can be avoided through careful selection, considering inertiaor by using identically-sized SUPER Roller Chain.)

� Unfavorable environmental conditions such as corrosion may cause eventualRoller Chain breakage.(This can be avoided by making sure the chain doesn’t come in contact with cor-rosive liquids or steam, etc. Alternatively, the Anti-Corrosive series is recommend-ed.)

� Correctly install Roller Chain to avoid misalignment or uneven wear and possiblebreakage.

Caution

CautionSelection Software

CD-ROM

Drum WChain with attachments

Pin Gear Sprocket

Drive Chain

8

TSUBAKI DRIVE CHAINS

GENE

RAL

Power transmission machines use chains, gears, or belts. The table below provides acomparison of typical applications. In general, chain is an economical part of powertransmission machines for low speeds and large loads. However, it is also possible touse chain in high-speed conditions like automobile engine camshaft drives. This isaccomplished by devising a method of operation and lubrication.

General Comparison ofTransmission Elements

Features1. Accommodates large speed reductions/increases (Usually up to 1 : 7)2. Chain can accommodate long shaft center distances (normally less than 4 m), and

is more versatile.3. It is possible to use chain with multiple shafts or drives with both sides of the chain.4. Ease of installation and replacement (easy to cut and connect chains).5. Drive use is possible even when shafts are vertical, as long as the chain receives

support in short distances between the shafts.6. Standardization of chains under the American National Standards Institute (ANSI),

the International Standardization Organization (ISO), and the Japanese IndustrialStandards (JIS) allow ease of selection.

7. The sprocket diameter for a chain system may be smaller than a belt pulley, whiletransmitting the same torque.

8. Sprockets are subject to less wear than gears because sprockets distribute theloading over their many teeth.

9. There is high shock absorbency compared with gears.

Points to Note1. Chain has a speed variation, called chordal action, which is caused by the polygo-

nal effect of the sprockets.(Shock can be reduced under the same speed ratio, by either reducing the chainpitch or increasing the number of sprocket teeth.)

2. During transmission, a particular method of lubrication is necessary according tospeed.

3. Chain wears and elongates, so you need to consider measures for adjusting chainslack.

4. Chain is weak when subjected to loads from the side. It needs proper alignment.

Features & Points to Noteabout Roller ChainTransmission

TransmissionType

Spur Gear

Synchronization @

TransmissionEfficiency

@

Anti-Shock ×

Noise/Vibration ×

SurroundingConditions

Avoid water anddust

SpaceWeight

High Speed Low Load !

Low SpeedHigh Load

!Less durability due to lownumber of engaging teeth

Lubrication × Necessary

Layout Flexibility ×

Excess Load onBearing

@

Roller Chain Tooth Belt V Belt

@ @ ×

@ @ &

& ! @

& @ @

Avoid water and dust(Corrosion ResistantRoller Chain is available)

Avoid heat, oil,water, and dust

Avoid heat, oil,water, and dust

× @ !

@

Compact/Light Weight&

Slightly heavy pulley×

Heavy wide pulley

× Necessary @ Unnecessary @ Unnecessary

@ ! &

@ ! ×

@ Excellent ! Good & Fair × Poor

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Explanation of Terms 1. JIS Minimum Tensile Strength (Tensile Breakage Strength)This is the Minimum Tensile Strength determined by JIS. If a roller chain breaks by atensile load below this value, then it does not surpass JIS standards. In the case ofmulti-strand roller chain, the single strand value is multiplied by the number ofstrands. (JIS B 1801-1997)

2. Average Tensile StrengthThis is a fracture load reading obtained after a long period of actual tensile strengthtesting of a large number of chain strands. Of course, when any given strand of rollerchain fractures, this value may be higher or lower, so it does not represent a guaran-teed value. This value differs depending on the manufacturer.

3. Minimum Tensile StrengthThis is a minimum value determined by statistical processing at TSUBAKI. If any rollerchain fractures by a tensile load below this value, then it does not surpass the stan-dards. This value differs depending on the manufacturer.

4. Tensile Strength Testing MethodAs shown in Fig. 2, roller chain with over five links is fixed at both ends by clevisesand is stretched until fracture occurs (JIS B 1801-1997). The type of fracture is indi-cated by breakage of the roller chain or failure of its parts (Fig. 3).

Freq

uenc

y

JIS Tensile Strength

Min. Tensile Strength

Ave. Tensile Strength

Tensile Strength

Fig. 1 Relationship between three tensile strengths.

Fig. 2 Tensile strength test Fig. 3 Shape of fracture

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GENE

RAL

5. Maximum Allowable LoadThe Maximum Allowable Load of roller chain (excluding Stainless Steel Chain andEngineering Plastic Chain*) is the value derived from the lowest fatigue limit. When aload lower than this value is repetitively applied to the roller chain, fatigue failure willnever occur.

According to JIS B 1801-1997, the Maximum Allowable Load indicates a breakageload of Pmax = (Pm + Pa) = 2.2Pa at the frequency of 5 × 106, when a new rollerchain with over five links receives a repetitive load in linear operation (Fig. 4).

However, according to TSUBAKI’s standards, the catalog shows 2Pa at a frequencyof 107 as the Maximum Allowable Load.* Stainless Steel Chain and Engineering Plastic Chain

Surface pressure between the pins and bushings is specified from the wear performance,and Maximum Allowable Load is determined.

Note that the strength of one-pitch offset links is lower than the chain itself. (Refer toSlow Speed Selection Method : becomes 65% of the Maximum Allowable Load of themain chain.) However, the strength of two-pitch offset links is identical to that of themain chain.

6. Kilowatt Ratings TableRS Roller Chain and SUPER Roller Chain kW rating tables show kW values that allow15,000 hours of operation using a two-shaft drive and 100 pitches of roller chain un-der conditions 1 ~ 5 below. The kW ratings table of LAMBDA chain is based on conditions 1 ~ 4 and shows kWrating values when LAMBDA chain is used with two shafts. Lambda Chain has morethan 14 times the wear elongation of Standard RS Roller Chain operated without lubri-cation (#120 and #140 have five times). X-LAMBDA has more then five times the wearelongation life of Lambda Roller Chain.1)The chains are operated under ordinary conditions where the ambient temperature

is –10°C ~ +60°C (+14°F ~ +140°F) and there is no abrasive dust.2)There are no negative effects from corrosive gasses or a high humidity.3)The two transmission shafts are in a horizontal position and the chains are properly

installed (Refer item 4 on Pg. 96).4)There is minimal fluctuation in load during transmission.5)The recommended lubrication system and lubricant shown in the kW rating tables is

used for RS Roller Chain and SUPER Roller Chain (Refer Pgs. 94 & 95).

7. Moment of Inertia (I / J / GD2)Moment of Inertia is used to show the degree of inertia in rotational movement, in oth-er words, “rotation difficulty”, or “rotation ease.” This is equivalent to the mass (weight)of the object being used for straight-line transmission.Moment of Inertia is shown in the SI units table as: I = mk2 (kg·m2 m : mass of rotating body k : turning radius)It is shown in the Gravitational units table as:

(kgf·m·s2 G : mass of rotating body G : gravitational acceleration).

Although, GD2 = 4GJ (D : diameter of rotating body) is generally being used now inplace of Moment of Inertia.

J = G · K2

G

Load

Time

Fig. 4 Summary chart for repetitive loads

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Roller ChainStructure

1. Basic Structure

• PlateThe plate is the component that bears the tension placed on the chain. Usually this isa repeated loading, sometimes accompanied by shock. Therefore, the plate musthave not only great static tensile strength, but also must hold up to the dynamicforces of load and shock.

• PinThe pin is subject to shearing and bending forces transmitted by the plate. At thesame time, it forms a load-bearing part, together with the bushing, when the chainflexes during sprocket engagement. Therefore, the pin needs high tensile and shearstrength, resistance to bending, and also must have sufficient endurance againstshock and wear.

• BushingThe bushing is subject to complex forces from all parts, especially from the repetitionof shock loads when the chain engages the sprocket. Therefore, the bushing needsextremely high shock resistance. In addition, the bushing forms a load-bearing parttogether with the pin and as such requires great wear resistance.

• RollerThe roller is subject to impact load as it strikes the sprocket teeth during the chain en-gagement with the sprocket. After engagement, the roller changes its point of contactand balance. It is held between the sprocket teeth and bushing, and moves on thetooth face while receiving a compression load. Therefore, it must be resistant to wearand still have strength against shock, fatigue and compression. RS11 / 15 / 25 / 35 donot have rollers.

• Roller LinkTwo bushings are press fit into two roller link plates and rollers are inserted to allowrotation around the outside of the bushing. This is the same for single strand and mul-ti-strand chain.

• Pin Link and Inner Plate The pin link consists of two pins that have been press fit into two pin link plates. In thecase of multi-strand roller chain, an inner plate is added to the pin link. The inner plateis slip fit for Standard RS Roller Chain and press fit for SUPER Roller Chain.

Three Basic DimensionsPitch, Roller Diameter and Widthbetween Roller Link Plates areknown as the “Three BasicDimensions of Roller Chain.”When these three dimensions areidentical, roller chain and sprock-ets are dimensionally compatible. * Slip FitWhen the shafts and holes are fit-ted together, there is a continuousloose fit. This is a fit where therange of tolerance for the hole islarger than the range of tolerancefor the shaft (pin or bushing).* Press FitWhen the shafts and holes are fit-ted together, there is a continuousinterferential fit. This is a fit wherethe range of tolerance for the holeis smaller than the range of toler-ance for the shaft (pin or bush-ing).

Spring clips, cotter pins andspring pins are the parts thatprevent the connecting linkplate from falling off the pinand are extremely importantparts for maintaining the origi-nal strength of the chain. Don’tforget to install these neces-sary parts under any circum-stances.

Pin

Roller

Connecting Link Plate

Inner Plate

Single StrandPin Link

Multi-Strand Pin Link (Two-strand chain shown)

Offset Pin

Slip Fit

Press Fit

Press Fit

Pin Link

Roller Link

Press Fit

Slip Fit

Cotter Pin

Roller Link Plate

Pin Link Plate

Spring Clip

Roller Link

Bushing

Offset Link

Roller Chain

Connecting Link

Roller

Diameter

Pitch

Width between

Roller Link Plates

12


GENE

RAL

2. Assembly PartsRoller Chains are usually made up of a number of connected links in an endless formation, or used by fixing the chain ends,but the need for connecting links will eventually arise. Although offset links can be used when there are an odd number oflinks in the roller chain, please use a design that requires an even number of links as much as possible.

2.1 Connecting Links

2.2 Offset Links

Note: 1. The connecting link plate fastening method for each chain size is indicated in the dimension tables and the table notes. 2. The color of F-type connecting links for RS Roller Chain and RS-HT Roller Chain marked with * is black.

1 Pitch Offset LinksWhen an OL is used, pleaseallow for a 20% reduction inkW ratings compared to thatof the main chain and a 35%reduction in MaximumAllowable Load kN (kgf).

2 Pitch Offset linksThe pin and offset link plateof a 2POL is press fit and isfastened by a rivet. They canbe used in accordance withthe kW ratings tables.Please refer to the dimension tables for roller chain types and sizes suitable for offset links.

Points to Note

• For multi-strand chain, make sure the plate with RC processingis on the outer most side when assembling.

• Operating speed is indicated by the white area in the kW ratingstable.

• Make sure to use the chain according to the specified applica-tions on page 73 and within the speed region of the coloredarea in the kW rating tables.

• Can be used in all areas of the kW ratings table for LambdaChain.

• RC processing is carried out on the connecting link plates.

• Please use the exclusive connecting links foreach chain type.

• Please use the exclusive connecting link for RS-HT Roller Chain.

• There are no connecting links, so use connectingpins for assembly.

• Refer to the dimension tables of each chain. Thechains that have RC processing on the connect-ing link plates are limited to NP Roller Chain, DPRoller Chain, WP Roller Chain, SN Roller Chainand BS Roller Chain.

Chain Type

Lambda (Λ) RollerChain

SUPER Roller ChainSUPER-H Roller ChainULTRA SUPER Roller Chain

RS-HT Roller Chain

Heavy Duty RollerChain

Other Roller Chain incatalog

Connecting Link Name

M-type Connecting Link(Formerly: StandardConnecting Link)Code: CL

F-type Connecting Link*(Formerly: Gold-coloredConnecting Link)Code: F-CL

M-type Connecting LinkCode: CL

F-type Connecting LinkCode: CL

F-type Connecting Link*Code: CL

(Connecting Pin)

M-type Connecting LinkCode: CL

Pin &Connecting Link

Plate Fitting

Connecting LinkPlate Fastening

Method

Slip Fit(M)

ClipCotter PinSpring Pin

Press Fit(F)

Clip / Cotter PinSpring PinT Pin

Slip Fit(M)

ClipCotter Pin

Press Fit(F)

Spring Pin

Press Fit(F)

Cotter PinSpring Pin

Press Fit(F)

T Pin

Slip Fit(M)

Cotter Pin / ClipSpring PinT Pin / Z Pin

RS Roller Chain

Pin Link PlatePin Link PlatePin Link Plate

Inner Plate

ConnectingLink Plate(RCprocessing)

Pin PinPin Pin Pin

Clip SpringPin

ClipCotter Pin Cotter PinConnecting Link Plate(RC processing)

Connecting Link Plate(RC processing)

ConnectingLink Plate

M-type Connecting Links (Formerly: Standard Connecting Link) RS Roller Chain

Clip-type Cotter Pin-type Spring Pin-type (RS240 only) F-type Connecting LinkCotter Pin-typeMulti-strand (2-strand shown)

Pin Link Plate

Offset Link Plate

Cotter Pin Offset Link PlatePin

Pin

1 Pitch Offset Links (OL)

Single strandMulti-strand (2-strand shown)

2 Pitch Offset Links (2POL)

Single Strand Multi-strand (2-strand shown)

13

What is Roller Chain Length Tolerance?

The method of testing for chain length and the allowable length tolerance is specified in JISB 1801-1997. The length tolerance of chain subjected to a measuring load specified by JISfor each chain size (Ex. RS80: 500 N (50.99 kgf)) is the standard chain length ±0 ~ 0.15%.Standard length refers to the standard chain pitch (P) × No. of links. (Applies to items shownwith a JIS number.)

How much elastic elongation is there depending on the chain load?

The diagram below shows the elastic elongation of chain subjected to load. The valuesshown are standard reference values and have been calculated using a single strand of RSRoller Chain. In actual fact there will be a slight variation. Furthermore, make sure not to sub-ject the roller chain to loads greater than the Maximum Allowable Load.

Maximum Allowable Load

Maximum Allowable Load

Load

Load

Chain Elongation (mm/m) Chain Elongation (mm/m)

kN (kgf)

35.3 (3600)

33.3 (3400)

31.4 (3200)

29.4 (3000)

27.5 (2800)

25.5 (2600)

23.5 (2400)

21.6 (2200)

19.6 (2000)

17.7 (1800)

15.7 (1600)

13.7 (1400)

11.8 (1200)

9.81 (1000)

7.84 (800)

5.88 (600)

3.92 (400)

1.96 (200)

0 1 2 3 4

kN (kgf)

108 (11000)

98.1 (10000)

88.3 (9000)

78.5 (8000)

68.6 (7000)

58.8 (6000)

49.0 (5000)

39.2 (4000)

29.4 (3000)

19.6 (2000)

9.81 (1000)

0 1 2 3 4

14


GENE

RAL

General

Classification Advanced Features

Lube-Free

LAMBDA

RS Roller Chain

SUPER series

Ant

i-Cor

rosi

on

Low Noise

Curved

ISO-B Series

Heat resistant / Anti-corrosive

Slig

htly

ant

i-cor

rosi

veH

ighl

y an

ti-co

rros

ive

Cold resistant

Cor

rosi

on R

esis

tant

SUPER

NP

PC

KT

SN

CU

BS

LAMBDA-NP

SUPER-H

RS-HT

RO

SS

LS

AS

NS

WP

US

DP

TI

PC-SY

X-LAMBDA

Standard (ISO / JIS / ANSI)

Special sintered bushing

Nickel Plated

Ultra-Long Life

For curved drive

ISO-B and DIN standard

Improved max. allowable load and tensile strength

Stronger than SUPER

Improved tensile strength

Ultra-Strong

Offset-type / Strong

Nickel Plated

Special coating

Special double coating

SUS304 + engineering Plastic

SUS304

SUS304 + engineering plastic

Max. allowable load = SS × 1.5

SUS316

Titanium

Titanium + engineering plastic

–40°C to +60°C

Low noise

For curved drive

ISO-B series

CU-LAMBDA

BS-LAMBDA

Page

17~

35~

44~

63~

55~

67~

(excludes some items)

(–40°F to +140°F)

Roller Chain Types / Selection1. New applications: Carefully check required classifications/features.2. Replacements: Check suitability of current type.

CHAI

N

16

ROLLER CHAIN� Standard Roller Chain ……………………………………………………17

� Lube-Free Roller Chain …………………………………………………35

� Heavy Duty Roller Chain…………………………………………………44

� Corrosion Resistant Roller Chain ………………………………………55

� Low Noise Roller Chain …………………………………………………63

� Curved, BS/DIN Roller Chain……………………………………………67

17

Compact Drive

Through the improved kW rating capacity, a reduction in thenumber of sprocket teeth allows for a more compact drivecompared to the 70 series.

(Ex) Number of small sprocket teeth for RS80 when small sprocketspeed is 50 r/min and at 2.2 kW.

*1 Ring Coin (RC) processing The Ring Coining process, an original Tsubaki design, createsa plastic deformation around the pinhole on the cover of theconnecting link plate. This design generates residual stressaround the area.

*2 M-Type Connecting LinkA connecting link with a connecting plate in which the pin andpinhole are slip-fit.

The trusted brand around the world

TSUBAKI RS® ROLLER CHAINIn its never ending pursuit of improvement, Tsubaki, with more than 80years of chain production experience and technology and with theInternational Standard ISO9001 accreditation for Quality Assurance, is de-livering the best value to its customers.

80th Series RS Roller Chain: a roller chain, which has received a vast improvement in kWrating capacity, not to mention improvements in performancecapabilities across the range of sizes.

25% Increase in kW rating capacityThrough the improvement in Ring Coin (RC) processing*1 of the connecting link (M-type*2) and two-pitch offset link,kW rating capacity has been increased 25% compared to the previous series (70 series). (RS35, RS40 ~ RS240)

1

Identical maximum allowable load as main chain…(M-Type connecting link and two-pitch offset link)

The maximum allowable tension on the M-Type connecting link and the two-pitch offset link have been improved*3

to the level of the main chain, thereby allowing full exploitation of the chain’s performance for slow speed chain se-lection. Therefore, waste-free and economical chain drive is possible. (RS35, RS40 ~ RS240)

Ring Coin Processing on Connecting Link

Improved KW Rating Capacity

Former C

hain (70 Serie

s)RS R

oller C

hain

25% up

Speed of Small Sprocket RPM

kW R

atin

g C

apac

ity

2

80th Series Former Series (70 Series)Main chain 100% 100%

M-Type (Slip-fit) connecting link 100% 80%

F-Type (Semi Press-fit) connecting link 100% 100%

Two-pitch offset link 100% 75%

One-pitch offset link 65% 65%

*3 Strength to maximum allowable load

No. of small sprocket teeth (Outer Diameter : mm)

80th Series More than 12 teeth

Former Series (70 Series) More than 15 teeth

(108)

(135)

General Roller Chain

18


CHAI

N

Former 70 Series

RS Roller Chain

(Pre-Lubricated)

(Pre-Lubricated)

Operation Time (Life)

30%

LubricatedWea

r E

long

atio

n

Average Tensile Strength

Increase in shock absorption

Elongation

2.5% Ave.

Form

er70

Series Roller Chain

RS

Rol

ler

Cha

in

Load

*4 Lube groove processing (PAT.)So as to retain pre-lubricant within the bushing longer, the innersurface of the bushing has been specially processed as shownin the photo.

Inner view of vertically cut bushing

Side view of cut bushing

30% increase in wear lifeThrough lube groove processing*4 of the inner surface of the lubricated bushing, pre-lubricant is retained longerand wear life is increased 30% compared to the former 70 series. (RS80 ~ RS140)

3

Greater Tensile Strength andShock ResistanceFor large size chain over RS160, tensile strength andelasticity have been improved through the use of op-timal steel and heat treatment processes. Comparedto the former 70 series, there is a 10% increase inshock resistance, through the improvement of theelastic absorption functioning (shaded area in graphon right).

4

Improvement in Handling EaseSimple and cleaner handling is made possible through Tsubaki’s specialized method of applying corrosion-preven-tive lubrication.

5

19

RS11SS STAINLESS STEEL CHAIN-PITCH 3.7465 mm

0.38

1.57

0.38

2.285

1.83

2.27

53.

165

3.5

3.7465 3.7465

TSUBAKIChain No.

Max.Allowable

LoadN(kgf)

Approx.Mass

kg/m

No. ofLinks/Unit

Ave.Tensile

StrengthN(kgf)

RS 11SS 780 (80) 50 (5) 0.052 134

(Dimensions in mm)

RS15-PITCH 4.7625 mm

TSUBAKIChain No.

Max.Allowable

LoadkN(kgf)

Approx.Mass

kg/m

No. ofLinks/Unit

Ave.Tensile

StrengthkN(kgf)

RS 15 2.26 (230) 0.31 (32) 0.075 210

(Dimensions in mm)

Note : 1. Chain will be supplied in lengths of 134 links (Approx. 500 mm) including a connecting link, unless otherwise specified.2. No offset links are available.

Note : 1. Chain will be supplied in lengths of 210 links (Approx. 1.0 meter) including a connecting link, unless otherwise specified.2. No offset links are available.

TSUBAKI ANSI RS ROLLER CHAINS

0.6

1.62

0.6

2.48

2.38

3.05

3.85

4.3

4.7625 4.7625

20


CHAI

N

RS25 · BF25H-PITCH 6.35 mm

L1L2

6.35 6.35

5.84

0.75

2.31

1.0

3.30

3.18

0.75

2.31

0.75

3.30

3.18

L1L2

5.05

5.84

6.35 6.35

L1

C

L2

L1L1

2POL

BF25H

TSUBAKIChain No.

Max.Allowable

LoadkN(kgf)

Approx.Mass

kg/m

No. ofLinks/Unit

Ave.Tensile

StrengthkN(kgf)

Numberof

Strands

Pin

L1 + L2 L1 L2

TransversePitch

C

Type ofPin

Min. UltimateStrength ANSI

StandardkN(kgf)

RS 25

RS 25-2

RS 25-3

BF 25H

1

2

3

1

8.6

15.0

21.4

9.2

3.8

7.0

10.2

4.1

4.8

8.0

11.2

5.1

—

6.4

6.4

—

Riveted

Riveted

Riveted

Riveted

3.6 (367)

7.2 (734)

10.8 (1,101)

—

4.71 (480)

9.41 (960)

14.1 (1,440)

5.88 (600)

0.64 (65)

1.08 (110)

1.57 (160)

0.78 (80)

0.14

0.27

0.42

0.17

480

480

480

480

Note : Only two-pitch offset links are available for RS25 and RS25-2. No offset links are available for BF25H.

(Dimensions in mm)

RS35-PITCH 9.525 mm

1.25

φ3.59

1.25

φ5.08

4.78

L1L1

L1L2

L1

C

L2

2POL OL

L1

CC

L2

9.0

9.525 9.525

7.8

L

TSUBAKIChain No.

Max.Allowable

LoadkN(kgf)

Approx.Mass

kg/m

No. ofLinks/Unit

Ave.Tensile

StrengthkN(kgf)

Numberof

Strands

Pin

L1 + L2 L1 L2

TransversePitch

C

StandardType

ofPin

RS 35

RS 35-2

RS 35-3

L

1

2

3

12.7

22.8

32.9

5.85

10.9

16.0

6.85

11.9

16.9

13.5

24.5

34.6

10.1

Riveted

Riveted

Riveted

8.7 (887)

17.4 (1,774)

26.1 (2,661)

11.3 (1,150)

22.6 (2,300)

33.8 (3,450)

2.16 (220)

3.63 (370)

5.39 (550)

0.33

0.69

1.05

320

(Dimensions in mm)


StandardkN(kgf)

21

RS40-PITCH 12.70 mm

L1L1

L1

C

L2

10.4

12.0

12.70

2POL OL

12.70

L

L1

CC

L2

1.5

φ3.97

1.5

φ7.92

7.95

L1L2

TSUBAKIChain No.

Max.Allowable

LoadkN(kgf)

Approx.Mass

kg/m

No. ofLinks/Unit

Ave.Tensile

StrengthkN(kgf)

Numberof

Strands

Pin

L1 + L2 L1 L2

TransversePitch

C

StandardType

ofPin

RS 40

RS 40-2

RS 40-3

RS 40-4

RS 40-5

RS 40-6

L

1

2

3

4

5

6

18.2

32.6

46.8

61.2

75.7

90.1

8.25

15.45

22.65

29.9

37.1

44.3

9.95

17.15

24.15

31.3

38.6

45.8

18.0

33.5

47.9

62.3

76.8

91.2

14.4

Riveted

Riveted

Riveted

Riveted

Riveted

Riveted

15.2 (1,550)

30.4 (3,100)

45.6 (4,650)

55.2 (5,628)

69.0 (7,035)

82.8 (8,442)

19.1 (1,950)

38.2 (3,900)

57.4 (5,850)

76.5 (7,800)

95.6 (9,750)

115 (11,700)

3.63 (370)

6.18 (630)

9.12 (930)

12.0 (1,220)

14.1 (1,440)

16.7 (1,700)

0.64

1.27

1.90

2.53

3.16

3.79

240

(Dimensions in mm)


StandardkN(kgf)


L1L1

L1

C

L2

13.0

15.0

15.875

2POL OL

15.875

L1

CC

L2

2.0

φ5.09

2.0

φ10.16

9.53

L1L2

L

TSUBAKIChain No.

Max.Allowable

LoadkN(kgf)

Approx.Mass

kg/m

No. ofLinks/Unit

Ave.Tensile

StrengthkN(kgf)

Numberof

Strands

Pin

L1 + L2 L1 L2

TransversePitch

C

StandardType

ofPin

RS 50

RS 50-2

RS 50-3

RS 50-4

RS 50-5

RS 50-6

L

1

2

3

4

5

6

22.3

40.5

58.6

76.7

94.8

113.0

10.3

19.35

28.4

37.45

46.5

55.6

11.9

21.15

30.2

39.25

48.3

57.4

22.5

41.8

59.9

78.1

96.2

114.4

18.1

Riveted

Riveted

Riveted

Riveted

Riveted

Riveted

24.0 (2,447)

48.0 (4,895)

72.0 (7,342)

87.2 (8,892)

109.0 (11,115)

130.8 (13,338)

31.4 (3,200)

62.8 (6,400)

94.1 (9,600)

126 (12,800)

157 (16,000)

188 (19,200)

6.37 (650)

10.7 (1,100)

16.0 (1,630)

21.1 (2,150)

24.9 (2,540)

29.3 (2,990)

1.04

2.07

3.09

4.11

5.14

6.16

192

(Dimensions in mm)


StandardkN(kgf)

22


CHAI

N

RS60-PITCH 19.05 mm2.

4

φ5.96

2.4

φ11.91

12.7

0

L1L1

L1L2

L1

C

L2

15.6

18.1

19.05

2POL OL

19.05

L1

CC

L2

L

TSUBAKIChain No.

Max.Allowable

LoadkN(kgf)

Approx.Mass

kg/m

No. ofLinks/Unit

Ave.Tensile

StrengthkN(kgf)

Numberof

Strands

Pin

L1 + L2 L1 L2

TransversePitch

C

StandardType

ofPin

RS 60

RS 60-2

RS 60-3

RS 60-4

RS 60-5

RS 60-6

L

1

2

3

4

5

6

27.6

50.5

73.8

96.6

119.5

142.4

12.85

24.25

35.65

47.05

58.5

69.9

14.75

26.25

38.15

49.55

61.0

72.5

28.2

52.6

75.5

98.3

121.2

144.0

22.8

Riveted

Riveted

Riveted

Riveted

Riveted

Riveted

34.2 (3,487)

68.4 (6,975)

102.6 (10,462)

124.4 (12,688)

155.5 (15,860)

186.6 (19,032)

44.1 (4,500)

88.3 (9,000)

132 (13,500)

177 (18,000)

221 (22,500)

265 (27,000)

8.83 (900)

15.0 (1,530)

22.1 (2,250)

29.1 (2,970)

34.4 (3,510)

40.6 (4,140)

1.53

3.04

4.54

6.04

7.54

9.05

160

(Dimensions in mm)


StandardkN(kgf)

RS80-PITCH 25.40 mm

3.2

φ7.94

3.2

φ15.88

15.8

8

L1L1

L1L2

L1

C

L2

20.8

24.1

25.40

2POL OL

25.40

L

L1

CC

L2

TSUBAKIChain No.

Max.Allowable

LoadkN(kgf)

Approx.Mass

kg/m

No. ofLinks/Unit

Ave.Tensile

StrengthkN(kgf)

Numberof

Strands

Pin

L1 + L2 L1 L2

TransversePitch

C

StandardType

ofPin

RS 80

RS 80-2

RS 80-3

RS 80-4

RS 80-5

RS 80-6

L

1

2

3

4

5

6

35.5

64.8

94.1

123.5

152.9

182.1

16.25

30.9

45.6

60.25

74.95

89.6

19.25

33.9

48.5

63.25

77.95

92.5

36.0

67.5

96.9

126.3

155.6

184.9

29.3

Riveted

Riveted

Riveted

Riveted

Riveted

Riveted

61.2 (6,241)

122.4 (12,481)

183.6 (18,722)

222.4 (22,680)

278.0 (28,350)

333.6 (34,020)

78.5 (8,000)

157 (16,000)

235 (24,000)

314 (32,000)

392 (40,000)

471 (48,000)

14.7 (1,500)

25.0 (2,550)

36.8 (3,750)

48.5 (4,950)

57.4 (5,850)

67.7 (6,900)

2.66

5.27

7.89

10.50

13.11

15.73

120

(Dimensions in mm)


StandardkN(kgf)

23


4.0

φ9.54

4.0

φ19.05

19.0

5

L1L1

L1L2

L1

C

L2

26.0

30.1

31.75

2POL OL

31.75

L

L1

CC

L2

TSUBAKIChain No.

Max.Allowable

LoadkN(kgf)

Approx.Mass

kg/m

No. ofLinks/Unit

Ave.Tensile

StrengthkN(kgf)

Numberof

Strands

Pin

L1 + L2 L1 L2

TransversePitch

C

StandardType

ofPin

RS 100

RS 100-2

RS 100-3

RS 100-4

RS 100-5

RS 100-6

L

1

2

3

4

5

6

42.6

78.5

114.4

150.2

186.1

222.0

19.75

37.7

55.65

73.55

91.5

109.45

22.85

40.8

58.75

76.65

94.6

112.55

44.4

81.5

117.3

153.1

188.9

224.7

35.8

Cottered

Cottered

Cottered

Riveted

Riveted

Riveted

95.4 (9,728)

190.8 (19,456)

286.2 (29,184)

346.8 (35,364)

433.5 (44,205)

520.2 (53,046)

118 (12,000)

235 (24,000)

353 (36,000)

471 (48,000)

588 (60,000)

706 (72,000)

22.6 (2,300)

38.3 (3,910)

56.4 (5,750)

74.4 (7,590)

88.0 (8,970)

104 (10,580)

3.99

7.85

11.77

15.70

19.53

23.48

96

(Dimensions in mm)


StandardkN(kgf)


4.8

φ11.11

4.8

φ22.23

25.4

0

L1L1

L1L2

L1

C

L2

31.2

36.2

38.10

2POL OL

38.10

L

L1

CC

L2

TSUBAKIChain No.

Max.Allowable

LoadkN(kgf)

Approx.Mass

kg/m

No. ofLinks/Unit

Ave.Tensile

StrengthkN(kgf)

Numberof

Strands

Pin

L1 + L2 L1 L2

TransversePitch

C

StandardType

ofPin

RS 120

RS 120-2

RS 120-3

RS 120-4

RS 120-5

RS 120-6

L

1

2

3

4

5

6

53.8

99.2

144.8

190.2

235.7

281.1

24.9

47.6

70.4

93.1

115.85

138.55

28.9

51.6

74.4

97.1

119.85

142.55

55.8

103.2

148.6

194.0

239.4

284.8

45.4

Cottered

Cottered

Cottered

Riveted

Riveted

Riveted

137.1 (13,980)

274.2 (27,961)

411.3 (41,941)

498.4 (50,824)

623.0 (63,530)

747.6 (76,236)

167 (17,000)

333 (34,000)

500 (51,000)

667 (68,000)

834 (85,000)

1,000 (102,000)

30.4 (3,100)

51.7 (5,270)

76.0 (7,750)

100 (10,230)

119 (12,090)

140 (14,260)

5.93

11.70

17.53

23.36

29.16

34.96

80

(Dimensions in mm)


StandardkN(kgf)

24


CHAI

N


5.6

φ12.71

5.6

φ25.40

25.4

0

L1L1

L1L2

L1

C

L2

36.4

42.2

44.45

2POL OL

44.45

L

L1

CC

L2

TSUBAKIChain No.

Max.Allowable

LoadkN(kgf)

Approx.Mass

kg/m

No. ofLinks/Unit

Ave.Tensile

StrengthkN(kgf)

Numberof

Strands

Pin

L1 + L2 L1 L2

TransversePitch

C

StandardType

ofPin

RS 140

RS 140-2

RS 140-3

RS 140-4

RS 140-5

RS 140-6

L

1

2

3

4

5

6

58.6

107.5

156.6

205.5

254.4

303.5

26.9

51.35

75.85

100.3

124.8

149.3

31.7

56.15

80.75

105.2

129.6

154.2

59.5

112.3

161.3

210.2

259.1

308.0

48.9

Cottered

Cottered

Cottered

Riveted

Riveted

Riveted

185.9 (18,957)

371.8 (37,913)

557.7 (56,870)

676.0 (68,932)

845.0 (86,165)

1,014.0 (103,398)

216 (22,000)

431 (44,000)

647 (66,000)

863 (88,000)

1,080 (110,000)

1,290 (132,000)

40.2 (4,100)

68.4 (6,970)

101 (10,250)

133 (13,530)

157 (15,990)

185 (18,860)

7.49

14.83

22.20

28.52

36.97

44.30

68

(Dimensions in mm)


StandardkN(kgf)


6.4

φ14.29

6.4

φ28.58

31.7

5

L1L1

L1L2

L1

C

L2

41.6

48.2

50.80

2POL OL

50.80

L

L1

CC

L2

TSUBAKIChain No.

Max.Allowable

LoadkN(kgf)

Approx.Mass

kg/m

No. ofLinks/Unit

Ave.Tensile

StrengthkN(kgf)

Numberof

Strands

Pin

L1 + L2 L1 L2

TransversePitch

C

StandardType

ofPin

RS 160

RS 160-2

RS 160-3

RS 160-4

RS 160-5

RS 160-6

L

1

2

3

4

5

6

68.7

127.3

185.9

244.4

303.0

361.6

31.85

61.15

90.45

119.75

149.05

178.3

36.85

66.15

95.45

124.65

153.95

183.3

71.0

132.2

190.7

249.2

307.7

366.2

58.5

Cottered

Cottered

Cottered

Riveted

Riveted

Riveted

244.6 (24,942)

489.2 (49,885)

733.8 (74,827)

889.6 (90,712)

1,112.0 (113,390)

1,334.4 (136,068)

279 (28,500)

559 (57,000)

838 (85,500)

1,120 (114,000)

1,400 (142,500)

1,680 (171,000)

53.0 (5,400)

90.0 (9,180)

132 (13,500)

175 (17,820)

207 (21,060)

244 (24,840)

10.10

20.04

30.02

40.06

49.89

59.93

60

(Dimensions in mm)


StandardkN(kgf)

25


7.15

φ17.46

7.15

φ35.71

35.7

2

L1L1

L1L2

L1

C

L2

46.8

54.2

57.15

2POL OL

57.15

L

L1

CC

L2

TSUBAKIChain No.

Max.Allowable

LoadkN(kgf)

Approx.Mass

kg/m

No. ofLinks/Unit

Ave.Tensile

StrengthkN(kgf)

Numberof

Strands

Pin

L1 + L2 L1 L2

TransversePitch

C

StandardType

ofPin

RS 180

RS 180-2

RS 180-3

RS 180-4

RS 180-5

RS 180-6

L

1

2

3

4

5

6

78.1

144.1

210.2

276.1

342.0

407.9

35.65

68.75

101.7

134.65

167.6

200.55

42.45

75.35

108.5

141.45

174.4

207.35

80.6

151.1

216.9

282.8

348.6

414.4

65.8

Cottered

Cottered

Riveted

Riveted

Riveted

Riveted

308.2 (31,428)

616.4 (62,885)

924.6 (94,283)

—

—

—

370 (37,700)

739 (75,400)

1,110 (113,100)

1,480 (150,800)

1,850 (188,500)

2,180 (226,200)

60.8 (6,200)

103 (10,540)

152 (15,500)

201 (20,460)

237 (24,180)

280 (28,520)

13.45

26.52

38.22

50.90

63.59

76.27

54

(Dimensions in mm)


StandardkN(kgf)


8.0

φ19.85

8.0

φ39.68

38.1

0

L1L1

L1L2

L1

C

L2

52.0

60.3

63.50

2POL OL

63.50

L

L1

CC

L2

TSUBAKIChain No.

Max.Allowable

LoadkN(kgf)

Approx.Mass

kg/m

No. ofLinks/Unit

Ave.Tensile

StrengthkN(kgf)

Numberof

Strands

Pin

L1 + L2 L1 L2

TransversePitch

C

StandardType

ofPin

RS 200

RS 200-2

RS 200-3

RS 200-4

RS 200-5

RS 200-6

L

1

2

3

4

5

6

83.8

155.5

227.2

298.9

370.6

442.3

39.0

74.85

110.75

146.6

182.4

218.25

44.8

80.65

116.45

152.3

188.2

224.05

87.3

161.2

233.0

304.7

376.3

448.0

71.6

Cottered

Cottered

Riveted

Riveted

Riveted

Riveted

381.7 (38,923)

763.4 (77,845)

1,145.1 (116,768)

1,388.0 (141,536)

1,735.0 (176,920)

2,082.2 (212,304)

471 (48,000)

941 (96,000)

1,410 (144,000)

1,880 (192,000)

2,350 (240,000)

2,820 (288,000)

71.6 (7,300)

122 (12,410)

179 (18,250)

236 (24,090)

279 (28,470)

329 (33,580)

16.49

32.63

49.02

65.16

81.32

97.59

48

(Dimensions in mm)


StandardkN(kgf)

26


CHAI

N


9.5

φ23.81

9.5

φ47.63

47.6

3

L1L1

L1L2

L1

C

L 2

62.4

72.4

76.20

2POL 1POL

76.20

L

L1

CC

L2

TSUBAKIChain No.

Max.Allowable

LoadkN(kgf)

Approx.Mass

kg/m

No. ofLinks/Unit

Ave.Tensile

StrengthkN(kgf)

Numberof

Strands

Pin

L1 + L2 L1 L2

TransversePitch

C

StandardType

ofPin

RS 240

RS 240-2

RS 240-3

RS 240-4

RS 240-5

RS 240-6

L

1

2

3

4

5

6

103.4

191.3

279.0

367.1

455.0

542.8

47.9

91.9

135.85

179.8

223.75

267.7

55.5

99.4

143.15

187.3

231.25

275.1

106.7

198.4

286.3

374.2

462.0

550.1

87.8

Riveted

Riveted

Riveted

Riveted

Riveted

Riveted

550.4 (56,125)

1,100.8 (112,250)

1,651.2 (168,376)

2,001.6 (204,108)

2,502.0 (255,135)

3,002.4 (306,162)

686 (70,000)

1,370 (140,000)

2,060 (210,000)

2,750 (280,000)

3,430 (350,000)

4,120 (420,000)

99.0 (10,100)

168 (17,170)

248 (25,250)

327 (33,330)

386 (39,390)

456 (46,460)

24.5

48.1

71.6

95.1

118.6

142.1

40

(Dimensions in mm)


StandardkN(kgf)

RF320T-PITCH 101.60 mm

12.7

φ31.75

12.7

φ63.5

63.6

5

L1L2

L1

C

L2

92

101.6 101.6

L1

CC

L2

TSUBAKIChain No.

Max.Allowable

LoadkN(kgf)

Approx.Mass

kg/m

No. ofLinks/Unit

Ave.Tensile

StrengthkN(kgf)

Numberof

Strands

Pin

L1 + L2 L1 L2

TransversePitch

C

StandardType

ofPin

RF320T

RF320T-2

RF320T-3

RF320T-4

1

2

3

4

141.4

258.7

375.9

493.2

63.8

122.4

181.05

239.65

77.6

136.3

194.87

253.55

117.1

Riveted

Riveted

Riveted

Riveted

1,150 (117,000)

2,290 (234,000)

3,440 (351,000)

4,590 (468,000)

123 (12,500)

208 (21,250)

306 (31,250)

405 (41,250)

47.6

94.6

141.5

188.5

30

Note: Offset links are not available.

(Dimensions in mm)

27

RF400T-PITCH 127.0 mm

16.0

φ39.68

16.0

φ79.38

79.3

L1L2

L1

C

L2

120

127.0 127.0

L1

CC

L2

TSUBAKIChain No.

Max.Allowable

LoadkN(kgf)

Approx.Mass

kg/m

No. ofLinks/Unit

Ave.Tensile

StrengthkN(kgf)

Numberof

Strands

Pin

L1 + L2 L1 L2

TransversePitch

C

StandardType

ofPin

RF400T

RF400T-2

RF400T-3

RF400T-4

1

2

3

4

172.3

319.0

465.7

612.3

79.65

153.05

226.45

299.8

92.65

165.95

239.25

312.5

146.8

Riveted

Riveted

Riveted

Riveted

1,950 (199,000)

3,900 (398,000)

5,850 (597,000)

7,810 (796,000)

188 (19,200)

320 (32,640)

471 (48,000)

621 (63,360)

83.9

166.8

249.7

332.7

24

Note: Offset links are not available.

(Dimensions in mm)

28


CHAI

N

MAXIMUM KILOWATT RATINGSMulti-Strand Factor

Number ofRoller Chain Strands

Multi-StrandFactor

23456

1.72.53.33.94.6

Lubricating Methods

A

B

C

Manual lubrication or drip lubrication

Oil bath lubrication or lubrication by slinger disc

Lubrication using a pump

0.020.020.020.020.03

0.030.030.030.030.04

0.040.040.040.040.05

0.050.050.050.060.06

0.070.070.080.10

50

Maximum r/min — Small Sprocket

Lubrication System

A B

C

No. ofTeethSmallSpkt.

910111213

1415161718

1920212223

2425262830

32354045

0.030.040.040.040.05

0.050.050.060.060.07

0.070.070.080.080.09

0.090.100.100.110.12

0.120.140.160.18

0.080.100.110.120.13

0.140.150.160.170.18

0.190.200.210.220.23

0.250.260.270.290.31

0.330.370.430.48

0.130.150.170.180.20

0.220.230.250.270.28

0.300.320.340.350.37

0.390.410.420.460.49

0.530.580.670.77

0.180.200.230.250.27

0.290.320.340.360.39

0.410.430.450.480.50

0.530.550.570.620.67

0.720.790.911.04

0.230.260.280.310.34

0.370.400.430.450.48

0.510.540.570.600.63

0.660.690.720.780.84

0.900.991.141.30

0.300.330.370.400.44

0.480.510.550.590.63

0.660.700.740.780.82

0.850.890.931.011.09

1.161.281.481.68

0.360.410.450.490.54

0.580.630.670.720.76

0.810.860.900.951.00

1.041.091.141.231.33

1.421.571.812.06

0.430.480.530.580.63

0.690.740.790.850.90

0.961.011.061.121.17

1.231.281.341.451.56

1.681.852.132.42

0.490.550.610.670.73

0.790.850.910.971.03

1.101.161.221.291.35

1.411.481.541.671.80

1.932.122.452.78

0.570.640.710.780.85

0.920.991.071.141.21

1.281.361.431.501.58

1.651.731.801.952.10

2.252.482.873.26

0.670.760.840.921.00

1.091.171.261.341.43

1.511.601.691.771.86

1.952.032.122.302.48

2.662.933.383.84

0.780.870.961.061.15

1.251.351.441.541.64

1.741.841.942.042.14

2.242.342.442.642.85

3.053.363.884.41

0.760.891.031.171.30

1.411.521.631.741.85

1.962.072.182.302.41

2.522.642.752.983.21

3.443.794.384.97

0.640.750.870.981.11

1.241.371.511.661.81

1.952.112.272.442.61

2.782.933.063.313.57

3.834.214.875.53

0.540.640.740.840.95

1.061.171.291.421.54

1.671.811.942.082.22

2.372.522.682.993.32

3.664.185.106.08

0.470.550.640.720.82

0.921.011.121.221.34

1.451.571.691.811.93

2.062.192.322.592.87

3.173.624.425.28

0.420.480.560.640.72

0.810.900.981.071.17

1.271.371.481.581.69

1.811.922.042.282.52

2.783.183.894.63

0.370.430.500.570.64

0.720.790.870.961.04

1.131.221.311.401.50

1.601.701.812.012.24

2.462.823.454.11

0.330.390.450.510.57

0.640.710.780.850.93

1.011.091.171.261.34

1.431.521.611.812.00

2.212.523.083.68

0.300.350.400.460.51

0.570.640.700.770.84

0.910.981.061.131.21

1.291.371.451.631.81

1.992.282.783.32

0.270.310.370.420.47

0.520.580.640.700.76

0.830.900.961.031.10

1.171.251.321.481.64

1.812.072.523.01

0.250.290.340.380.43

0.480.530.580.640.69

0.750.810.870.941.01

1.071.141.211.351.50

1.651.892.312.75

0.220.260.310.350.40

0.440.480.540.590.64

0.690.750.810.870.93

0.981.041.111.241.37

1.511.732.112.52

0.190.220.260.300.34

0.370.420.460.500.54

0.590.640.690.740.79

0.840.900.951.061.17

1.291.481.812.16

MAXIMUM KILOWATT RATINGS

100 300 500 700 900 1200 1500 1800 2100 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 10000

Notes: 1. Multiply the value given above by the multi-strand factor in order to obtain the transmission kW of multi-strand chain. 2. Refer to pages 94–95 for an explanation of lubricating methods. Please consult TSUBAKI for use of kilowatt ratings to the right of the boundary line.

� RS25

29

50 100 300 500 700 900 1200 1500 1800 2100 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 10000


Lubrication System

A B C


910111213

1415161718

1920212223

2425262830

32354045

0.090.100.120.130.14

0.150.160.170.190.20

0.210.220.230.240.26

0.270.280.290.320.34

0.370.400.470.53

0.170.190.220.240.26

0.280.300.320.350.37

0.390.410.430.460.48

0.500.520.550.590.64

0.680.750.870.99

0.470.520.580.640.70

0.750.810.870.930.99

1.051.111.171.231.29

1.351.411.471.591.72

1.842.032.342.66

0.740.830.921.011.10

1.191.281.381.471.56

1.661.751.851.942.04

2.132.232.332.522.72

2.913.213.714.21

1.001.121.241.371.49

1.611.741.861.992.12

2.252.372.502.632.76

2.893.023.153.413.68

3.944.345.025.70

1.261.411.561.711.87

2.022.182.342.502.66

2.812.983.143.303.46

3.623.793.954.284.61

4.945.456.297.14

1.631.822.022.222.42

2.622.833.033.233.44

3.653.854.064.274.48

4.694.905.125.545.97

6.407.058.159.25

1.992.232.472.712.96

3.213.453.703.954.21

4.464.714.975.225.48

5.746.006.266.787.30

7.838.629.9611.3

2.342.632.913.203.49

3.784.074.364.664.95

5.255.555.856.156.46

6.767.077.377.988.60

9.2210.211.713.3

2.693.023.343.674.01

4.344.675.015.355.69

6.036.386.727.077.42

7.778.128.479.179.88

10.611.713.515.3

2.112.502.883.283.70

4.144.595.055.536.03

6.547.067.608.158.68

9.099.509.9110.711.6

12.413.715.817.9

1.621.902.182.502.80

3.143.473.804.174.54

4.925.325.726.206.62

7.067.517.968.909.87

10.912.415.218.1

1.291.511.731.982.23

2.492.763.043.333.63

3.944.254.574.915.26

5.595.966.317.077.83

8.589.8512.014.4

1.051.231.421.621.83

2.032.262.492.732.97

3.223.483.744.014.30

4.574.885.165.786.39

7.048.059.8511.8

0.881.041.181.361.53

1.711.892.092.282.49

2.702.913.143.363.60

3.844.094.334.845.35

5.906.768.289.85

0.750.881.011.161.30

1.461.621.781.952.12

2.302.492.682.873.08

3.273.493.704.144.58

5.045.767.058.43

0.660.770.881.011.12

1.271.401.541.691.84

2.002.162.322.492.67

2.833.023.213.593.97

4.375.006.117.30

0.570.670.770.880.99

1.111.231.361.481.62

1.751.892.032.182.34

2.492.662.813.153.48

3.834.385.366.41

0.510.600.680.780.87

0.981.091.201.321.43

1.561.681.801.942.08

2.212.362.492.793.09

3.403.894.755.69

0.460.530.610.700.78

0.880.981.071.181.28

1.391.501.621.741.86

1.972.102.232.502.76

3.043.484.255.09

0.410.480.550.630.70

0.790.880.971.061.15

1.251.361.461.561.68

1.781.902.012.252.49

2.743.143.83

0

0.370.430.500.570.64

0.720.800.880.961.05

1.141.231.321.421.52

1.621.721.832.042.26

2.492.853.48

0.340.400.450.520.58

0.650.730.800.880.96

1.031.121.211.301.39

1.481.571.671.872.06

2.272.60

0

0.310.370.420.480.54

0.600.670.740.800.88

0.951.031.111.191.28

1.361.451.531.721.89

2.092.39

0.270.310.360.410.46

0.510.570.620.690.75

0.810.880.951.011.09

1.151.231.301.461.62

00


10 25 50 100 200 300 400 500 700 900 1000 1200 1400 1600 1800 2100 2400 2700 3000 3500 4000 5000 6000 7000 8000


Lubrication System

A B C


910111213

1415161718

1920212223

2425262830

32354045

0.050.050.060.070.07

0.080.080.090.100.10

0.110.120.120.130.13

0.140.150.150.170.18

0.190.210.240.28

0.110.120.140.150.17

0.180.190.210.220.23

0.250.260.280.290.31

0.320.330.350.380.41

0.440.480.560.63

0.210.230.260.280.31

0.330.360.390.410.44

0.460.490.520.540.57

0.600.620.650.710.76

0.810.901.041.18

0.390.430.480.530.57

0.620.670.720.770.82

0.870.920.961.011.06

1.111.161.211.321.42

1.521.671.932.20

0.720.810.900.981.07

1.161.251.341.431.52

1.621.711.801.891.99

2.082.172.272.462.65

2.843.133.614.10

1.041.161.291.421.54

1.671.801.932.062.20

2.332.462.592.732.86

3.003.133.273.543.81

4.094.505.205.91

1.351.511.671.842.00

2.172.342.502.672.84

3.023.193.363.533.71

3.884.064.234.584.94

5.295.836.747.65

1.641.842.042.242.45

2.652.863.063.273.48

3.693.904.114.324.53

4.744.965.175.606.04

6.477.138.249.35

2.232.492.763.043.31

3.593.874.144.424.71

4.995.275.565.856.13

6.426.717.007.588.17

8.769.6511.112.7

2.793.133.473.814.15

4.504.855.205.555.90

6.266.616.977.337.69

8.058.418.789.5110.2

11.012.114.015.9

3.073.443.814.194.57

4.955.335.716.106.49

6.887.277.668.068.45

8.859.259.6510.511.3

12.113.315.417.5

3.624.054.494.935.38

5.836.286.737.197.64

8.108.579.039.499.96

10.410.911.412.313.3

14.215.718.120.6

3.764.405.085.676.18

6.697.217.738.268.78

9.319.8410.410.911.4

12.012.513.114.215.2

16.318.020.823.6

3.073.624.164.745.34

5.976.627.307.998.70

9.4410.211.011.812.6

13.414.114.716.017.2

18.420.323.526.6

2.573.013.483.964.47

5.005.546.106.697.28

7.838.289.249.8610.5

11.211.912.714.215.7

17.319.824.228.8

2.042.392.763.153.55

3.964.394.845.305.78

6.276.777.287.838.36

8.889.4810.111.212.5

13.715.719.222.8

1.671.962.262.572.90

3.253.603.964.344.73

5.135.545.966.396.83

7.287.768.219.1810.1

11.212.815.718.7

1.401.641.902.162.43

2.723.013.323.643.96

4.304.645.005.365.73

6.106.496.897.688.51

9.4010.713.115.7

1.191.401.601.842.08

2.322.572.843.113.39

3.673.964.274.574.89

5.225.545.886.577.28

8.069.1811.213.4

0.951.111.281.461.65

1.842.042.252.472.69

2.923.153.393.633.88

4.134.394.665.225.78

6.377.288.8810.6

0.780.911.051.191.35

1.511.671.842.022.21

2.392.572.772.973.18

3.393.603.824.274.73

5.225.967.288.73

0.560.650.750.850.96

1.081.191.321.451.57

1.711.841.982.132.28

2.422.572.733.053.39

3.734.275.22

0

0.430.490.570.650.73

0.820.911.001.101.19

1.301.401.511.621.73

1.841.962.062.322.57

000

0.340.400.460.510.58

0.650.720.800.870.95

1.031.111.191.281.37

1.460000

0.280.320.370.430.48

0.530.590.650.72

0

00000

0

� RS35


MAXIMUM KILOWATT RATINGS� RS40

Multi-Strand FactorNumber of

Roller Chain StrandsMulti-Strand

Factor23456

1.72.53.33.94.6

Lubricating Methods

A

B

C




30


CHAI

N

10 25 50 100 200 300 400 500 700 900 1000 1200 1400 1600 1800 2100 2400 2700 3000 3500 4000 4500 5000 5500 6000


Lubrication System

A B C


910111213

1415161718

1920212223

2425262830

32354045

0.100.110.120.140.15

0.160.170.190.200.21

0.230.240.250.260.28

0.290.300.320.340.37

0.400.440.500.57

0.230.260.280.310.34

0.370.400.430.460.49

0.510.540.570.600.63

0.660.690.720.780.84

0.900.991.151.30

0.430.480.530.580.64

0.690.740.800.850.91

0.961.011.071.121.18

1.241.291.351.461.57

1.691.862.142.44

0.800.900.991.091.19

1.291.391.491.591.69

1.791.892.002.102.20

2.302.412.512.722.93

3.143.464.004.54

1.491.671.852.032.22

2.402.592.782.963.15

3.343.533.723.914.11

4.304.494.695.085.47

5.876.467.478.48

2.152.412.672.933.19

3.463.734.004.274.54

4.815.095.365.645.92

6.196.476.757.327.88

8.459.3110.812.2

2.783.123.463.804.14

4.484.835.185.535.88

6.246.596.957.317.66

8.038.398.759.4810.2

10.912.113.915.8

3.403.814.224.645.06

5.485.916.336.767.19

7.628.068.498.939.37

9.8110.310.711.612.5

13.414.717.019.3

4.605.165.726.286.85

7.427.998.579.159.73

10.310.911.512.112.7

13.313.914.515.716.9

18.120.023.126.2

5.776.477.177.888.59

9.3010.010.711.512.2

12.913.714.415.215.9

16.717.418.219.721.2

22.725.028.932.8

6.357.117.888.669.44

10.211.011.812.613.4

14.215.015.816.717.5

18.319.120.021.623.3

25.027.531.836.1

5.666.637.658.729.83

11.012.213.414.715.8

16.817.718.719.620.6

21.622.523.525.527.4

29.432.437.542.5

3.674.304.965.666.38

7.137.918.739.5510.4

11.312.213.114.015.0

16.017.018.120.122.4

24.828.434.641.1

3.083.604.164.745.34

5.986.637.307.988.73

9.4810.211.011.812.6

13.414.315.116.918.7

20.723.628.934.4

2.442.873.303.764.25

4.745.265.796.346.91

7.468.068.739.3310.0

10.711.312.013.414.8

16.418.722.927.3

2.002.342.703.083.47

3.884.304.745.195.66

6.136.637.147.618.21

8.739.259.8511.012.2

13.415.418.722.4

1.681.962.272.582.91

3.253.603.974.354.74

5.145.555.986.416.85

7.307.768.219.1810.2

11.312.815.718.7

1.431.681.932.202.48

2.783.083.393.724.04

4.394.745.105.475.85

6.236.637.037.838.73

9.6211.013.416.0

1.131.331.541.751.97

2.202.442.692.953.21

3.483.764.044.344.64

4.955.265.576.236.91

7.618.7310.7

0

0.931.091.251.431.61

1.812.002.202.412.63

2.853.083.313.553.80

4.044.304.575.105.66

6.237.13

0

0.780.911.051.201.35

1.511.681.842.022.20

2.392.582.782.983.19

3.393.603.834.28

0

00

0.660.780.901.021.16

1.291.431.571.721.88

2.042.202.372.54

0

0000

0.570.670.780.891.00

1.121.241.371.50

0

0000

0.510.590.690.78

0

0000


10 25 50 100 150 200 300 400 500 600 700 800 900 1000 1100 1200 1400 1600 1800 2000 2500 3000 3500 4000 4500


Lubrication System

A B C


910111213

1415161718

1920212223

2425262830

32354045

0.180.200.220.240.26

0.290.310.330.350.38

0.400.420.440.470.49

0.510.540.560.610.65

0.700.770.891.01

0.410.450.500.550.60

0.650.700.750.810.86

0.910.961.011.061.12

1.171.221.281.381.49

1.601.762.032.31

0.760.850.941.031.13

1.221.311.411.501.60

1.701.791.891.992.08

2.182.282.382.582.78

2.983.283.794.30

1.411.581.751.932.10

2.282.452.632.812.98

3.163.343.533.713.89

4.074.264.444.815.18

5.566.127.078.03

2.032.282.532.773.03

3.283.533.794.044.30

4.564.825.085.345.60

5.876.136.406.937.46

8.008.8210.211.6

2.632.953.273.593.92

4.254.574.905.245.57

5.906.246.586.927.26

7.607.948.298.989.67

10.411.413.215.0

3.794.254.715.185.65

6.126.597.067.548.02

8.518.999.489.9610.5

10.911.411.912.913.9

14.916.519.021.6

4.925.516.116.717.31

7.928.549.159.7710.4

11.011.612.312.913.5

14.214.815.516.718.0

19.321.324.628.0

6.016.737.468.208.94

9.6910.411.211.912.7

13.514.215.015.816.6

17.318.118.920.522.1

23.726.130.134.2

7.087.948.809.6610.5

11.412.313.214.115.0

15.916.817.718.619.5

20.421.322.324.126.0

27.930.735.540.3

8.149.1210.111.112.1

13.114.115.116.217.2

18.219.320.321.422.4

23.524.525.627.729.9

32.035.340.746.3

9.1710.311.412.513.6

14.815.917.118.219.4

20.621.722.924.125.3

26.527.728.931.333.7

36.139.845.952.2

10.111.412.713.915.2

16.417.719.020.321.6

22.924.225.526.828.1

29.430.732.134.837.4

40.144.251.158.0

8.6210.111.613.315.0

16.718.520.422.323.7

25.126.628.029.430.9

32.333.835.338.241.2

44.148.656.263.8

7.458.7910.111.613.0

14.516.117.719.421.1

22.924.726.628.530.5

32.534.636.741.044.9

48.153.061.269.5

6.547.688.8810.111.3

12.714.015.617.118.6

20.221.823.525.226.9

28.530.332.236.039.9

43.950.361.473.3

5.196.087.027.989.03

10.111.212.313.514.7

16.017.218.519.821.2

22.624.025.528.531.6

34.839.849.058.5

4.254.985.746.547.38

8.289.1810.111.012.0

13.114.115.116.317.4

18.519.720.923.425.9

28.532.639.947.5

3.574.174.815.486.19

6.917.688.439.2510.1

10.911.812.713.614.5

15.516.517.519.521.7

23.927.333.439.8

3.043.564.114.695.28

5.906.547.217.918.58

9.3310.110.811.612.5

13.314.114.916.718.5

20.423.428.534.0

2.182.552.943.353.78

4.224.695.165.656.16

6.687.217.768.288.88

9.4810.110.711.913.3

14.616.720.424.3

1.661.942.242.552.87

3.223.563.924.304.69

5.085.485.906.336.77

7.217.688.139.1010.1

11.112.7

00

1.311.541.782.022.28

2.552.833.113.413.72

4.034.354.695.025.36

5.726.086.45

00

00

1.071.261.451.661.87

2.092.312.552.793.04

3.300000

000

0.901.051.221.39

0

00000

0

■ RS50

4.495.266.076.917.76

8.739.7210.711.712.7

13.814.916.017.218.4

19.620.822.124.727.4

30.134.542.148.9


MAXIMUM KILOWATT RATINGS■ RS60



Factor23456

1.72.53.33.94.6

Lubricating Methods

A

B

C




31

10 25 50 100 150 200 300 400 500 600 700 800 900 1000 1100 1200 1400 1600 1800 2000 2200 2400 2700 3000 3400


Lubrication System

A B C


910111213

1415161718

1920212223

2425262830

32354045

0.400.450.490.540.59

0.640.690.740.790.84

0.890.940.991.041.10

1.151.201.251.361.46

1.571.731.992.26

0.911.021.131.241.35

1.461.581.691.801.92

2.032.152.272.382.50

2.622.742.853.093.33

3.573.944.555.16

1.691.902.102.312.52

2.732.943.153.373.58

3.804.014.234.454.67

4.895.115.335.776.22

6.677.348.489.63

3.163.543.934.314.70

5.095.495.886.286.68

7.087.497.898.308.71

9.129.539.9410.811.6

12.413.715.818.0

4.555.105.656.216.77

7.347.908.489.059.63

10.210.811.412.012.5

13.113.714.315.516.7

17.919.722.825.9

5.906.617.338.058.77

9.5110.211.011.712.5

13.214.014.715.516.2

17.017.818.520.121.6

23.225.629.533.5

8.509.5210.611.612.6

13.714.815.816.918.0

19.020.121.222.323.4

24.525.626.728.931.2

33.436.842.548.3

11.012.313.715.016.4

17.719.120.521.923.3

24.726.127.528.930.3

31.733.234.637.540.4

43.347.755.162.6

13.515.116.718.420.0

21.723.425.026.728.4

30.231.933.635.337.1

38.840.642.345.849.4

53.058.367.476.5

15.917.819.721.623.6

25.527.529.531.533.5

35.537.639.641.643.7

45.747.849.954.058.2

62.468.779.490.2

18.220.422.624.927.1

29.431.633.936.238.5

40.843.145.547.850.2

52.554.957.362.166.9

71.779.091.2104

15.217.820.523.326.3

29.432.635.939.342.9

46.048.751.353.956.6

59.261.964.670.075.4

80.889.0103117

12.714.817.219.522.2

24.827.530.333.035.9

39.042.145.348.551.9

55.358.862.469.777.3

85.297.4114130

10.812.714.616.618.8

21.023.325.728.130.7

33.235.938.641.444.2

47.550.553.559.866.3

72.783.2102121

9.411.012.714.516.3

18.220.222.224.426.6

28.831.133.435.938.3

40.943.246.151.557.2

62.972.087.3106

8.219.6211.112.714.3

16.017.819.521.423.3

25.327.329.431.533.6

35.938.140.445.250.1

55.263.276.891.8

6.547.688.8010.111.3

12.714.115.516.918.5

20.121.623.325.026.7

28.530.332.135.939.8

43.850.161.373.1

5.356.277.238.219.33

10.411.512.713.915.1

16.417.819.120.421.9

23.324.826.329.432.5

35.941.050.159.8

4.485.256.066.907.76

8.739.6210.611.612.7

13.714.816.017.218.4

19.520.722.024.627.3

30.134.442.050.1

3.834.485.175.896.65

7.438.219.109.9210.8

11.712.713.714.615.7

16.617.818.821.023.3

25.729.435.940.4

3.323.894.485.115.76

6.447.147.838.589.40

10.111.011.912.713.6

14.515.416.318.220.2

22.225.414.9

0

2.913.413.934.485.06

5.656.276.907.548.21

8.959.6210.411.111.9

12.713.514.316.017.8

19.500

2.442.863.303.764.24

4.745.255.796.336.90

7.468.068.739.3310.0

10.611.312.0

00

0

2.082.442.813.213.62

4.044.484.945.415.89

6.390000

000

1.732.021.27

00

00000

0


10 25 50 100 150 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1600 1800 2000 2200 2400 2600 2700


Lubrication System

A B C


910111213

1415161718

1920212223

2425262830

32354045

0.660.740.820.900.99

1.071.151.231.321.40

1.491.571.661.741.83

1.912.002.092.262.43

2.612.883.323.77

1.511.701.882.062.25

2.442.632.823.013.20

3.393.583.783.974.17

4.364.564.765.155.55

5.956.567.588.60

2.823.163.513.854.20

4.554.905.265.615.97

6.336.697.057.417.78

8.148.518.889.6210.4

11.112.214.116.1

5.275.906.547.197.84

8.499.159.8110.511.1

11.812.513.213.814.5

15.215.916.617.919.3

20.722.826.430.0

7.598.509.4210.411.3

12.213.214.115.116.0

17.018.018.919.920.9

21.922.923.925.927.9

29.932.938.043.2

9.8311.012.213.414.6

15.817.118.319.520.8

22.023.324.525.827.1

28.429.630.933.536.1

38.742.649.255.9

14.215.917.619.321.1

22.824.626.428.129.9

31.733.535.437.239.0

40.842.744.548.252.0

55.761.470.980.5

18.320.622.825.027.3

29.631.934.136.538.8

41.143.545.848.250.5

52.955.357.762.567.3

72.279.591.9104

22.425.127.930.633.4

36.138.941.744.647.4

50.353.156.058.961.8

64.767.670.576.482.3

88.397.2112128

26.429.632.836.139.3

42.645.949.252.555.9

59.262.666.069.472.8

76.279.783.190.097.0

104115132150

22.125.929.934.138.4

42.947.652.557.562.6

67.971.975.879.783.6

87.691.595.5103111

119132152173

18.121.224.527.831.4

35.138.942.947.051.2

55.660.064.669.274.0

78.983.989.099.4110

121139170195

15.117.820.523.426.3

29.432.636.039.442.9

46.550.254.058.061.9

66.070.274.583.692.5

101116142170

13.015.117.519.922.5

25.127.830.733.636.6

39.742.946.149.552.9

56.459.963.671.079.1

86.599.2122145

11.213.115.117.319.5

21.824.226.629.131.7

34.437.240.042.945.8

48.951.955.161.668.3

75.485.8105125

9.8511.613.315.117.1

19.121.223.425.627.8

30.232.635.137.640.2

42.945.648.354.059.9

66.075.492.5110

8.7310.211.813.415.1

16.918.820.722.724.7

26.828.931.133.435.7

38.140.442.947.953.1

58.667.082.197.7

7.839.1810.612.013.6

15.116.818.520.322.1

23.925.927.829.831.9

34.036.238.342.947.5

52.459.973.287.3

6.397.468.659.8511.1

12.413.715.116.618.1

19.621.222.824.526.1

27.829.631.435.138.9

42.949.159.933.8

5.366.287.248.289.33

10.111.612.714.015.1

16.417.819.120.521.9

23.424.826.329.432.6

33.741.1

00

4.575.366.197.057.91

8.889.8510.811.913.0

14.015.116.317.518.7

19.921.222.525.17.46

00

3.974.655.366.116.89

7.688.519.4010.311.2

12.213.114.215.15.77

00000

3.484.084.715.366.04

6.757.468.280.59

0

00000

3.093.620.96

00

0000

000

� RS80





Factor23456

1.72.53.33.94.6

Lubricating Methods

A

B

C




32


CHAI

N

10 25 50 100 150 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100


Lubrication System

A B C


910111213

1415161718

1920212223

2425262830

32354045

1.221.361.511.661.81

1.962.112.262.412.57

2.722.883.033.193.35

3.503.663.824.144.46

4.785.276.086.91

2.773.113.443.784.12

4.474.815.165.515.86

6.216.576.927.287.64

7.998.358.729.4410.2

10.912.013.915.8

5.175.806.427.067.69

8.338.989.6310.310.9

11.612.312.913.614.2

14.915.616.317.619.0

20.422.425.929.4

9.6510.812.013.214.4

15.616.818.019.220.4

21.622.924.125.326.6

27.829.130.432.935.4

38.041.848.354.9

13.915.617.319.020.7

22.424.125.927.629.4

31.232.934.736.538.3

40.141.943.747.451.0

54.760.369.679.1

18.020.222.424.626.8

29.031.333.535.838.1

40.442.745.047.349.6

51.954.356.661.466.1

70.978.190.2102

25.929.132.235.438.6

41.845.048.351.654.8

58.161.564.868.171.5

74.878.281.688.495.2

102112130148

33.637.741.745.950.0

54.258.462.666.871.0

75.379.683.988.292.6

96.9101106114123

132146168191

41.146.051.056.161.1

66.271.376.581.786.9

92.197.3103108113

118124129140151

162178206234

32.237.843.649.756.0

62.669.476.583.891.3

99.0107115123132

140146152165178

191210242275

25.629.934.539.444.4

49.655.160.766.472.4

78.385.191.097.7104

109119126141156

172196240286

21.024.528.332.236.3

40.645.149.654.359.2

64.269.374.679.885.8

91.097.0103115128

140160196234

17.520.523.727.030.4

34.037.841.645.549.6

53.858.162.567.171.7

76.181.385.896.2107

118134164196

15.017.520.223.126.0

29.132.235.538.942.4

46.049.653.457.261.2

65.269.373.682.191.0

101115140167

13.015.217.520.022.5

25.227.930.833.736.7

39.843.046.349.653.0

56.660.163.771.379.1

87.399.2122145

11.413.415.417.519.8

22.124.527.029.532.2

34.937.840.643.646.6

49.652.756.062.569.3

76.187.3107128

10.111.913.715.617.5

19.621.723.926.328.6

31.033.536.038.641.3

44.046.849.655.461.5

67.777.694.859.7

9.0310.612.214.015.7

17.519.521.423.525.6

27.829.932.234.536.9

39.441.944.449.655.1

60.769.344.4

0

8.139.5511.012.514.2

15.817.519.321.223.1

25.027.029.131.233.3

35.537.840.144.849.6

54.735.6

0

7.408.6510.011.412.8

14.315.917.519.221.0

22.724.526.428.330.2

32.234.236.340.631.6

00

6.767.919.1010.411.7

13.114.516.017.519.1

20.722.424.125.827.6

29.430.819.8

00

6.207.278.369.5510.7

12.013.414.716.117.5

19.020.522.112.4

0

000

5.726.707.768.809.92

11.112.313.614.88.43

0000

5.306.207.168.139.18

6.670000

4.925.77

000

0

10 25 50 100 150 200 250 300 350 400 450 500 550 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700


Lubrication System

A B C


910111213

1415161718

1920212223

2425262830

32354045

1.902.132.362.602.83

3.073.303.543.784.02

4.274.514.755.005.24

5.495.745.996.486.99

7.498.259.5310.8

4.344.875.395.926.46

7.007.548.088.639.18

9.7310.310.811.412.0

12.513.113.714.815.9

17.118.821.724.7

8.109.0810.111.112.1

13.114.115.116.117.1

18.219.220.221.322.3

23.424.425.527.629.7

31.935.140.646.1

15.116.918.820.622.5

24.426.328.130.132.0

33.935.837.839.741.7

43.645.647.551.555.5

59.565.575.786.0

21.824.427.029.732.4

35.137.840.543.346.0

48.851.654.457.260.0

62.865.668.574.279.9

85.794.4109124

28.231.635.038.542.0

45.549.052.556.159.6

63.266.870.574.177.7

81.485.088.796.1104

111122141160

34.538.642.847.151.3

55.659.964.268.572.9

77.381.786.190.695.0

99.5104108118127

136150173196

40.645.550.555.460.5

65.570.675.780.885.9

91.196.3101107112

117123128138149

160176204231

46.752.358.063.769.5

75.281.186.992.898.7

105111117123129

135141147159171

184202234266

52.759.065.471.878.3

84.891.498.0105111

118125131138145

152159166179193

207228264299

56.265.672.779.987.1

94.3102109116124

131139146154161

169176184199215

230254293333

48.056.264.973.983.3

93.1103114125136

144152161169177

186194202219236

253279322366

41.648.656.164.472.6

81.189.598.6108118

128138148159170

181193204228253

276304351399

36.542.749.256.163.3

70.778.386.594.8103

112120131140150

160170180200222

245280342408

28.933.939.144.550.2

56.162.268.675.482.1

88.895.5103110118

126134142159176

194222271324

23.727.832.036.541.2

46.051.056.161.567.0

72.778.384.390.397.0

103110116130144

159181222265

19.823.326.830.634.5

38.542.747.151.656.1

60.965.770.776.181.3

86.591.897.7109121

133152186222

16.919.822.926.129.4

32.936.540.144.047.9

52.056.160.464.869.2

73.878.383.693.2103

113130159177

14.717.219.822.625.5

28.531.634.838.141.6

45.148.652.456.160.0

63.968.072.180.689.5

98.511313369.2

12.915.117.419.822.4

25.027.830.633.536.5

39.542.746.049.252.7

56.159.763.370.778.3

86.597.0

00

11.413.415.417.619.8

22.224.627.129.732.3

35.137.940.743.746.7

49.852.956.162.769.5

00

10.212.013.815.717.8

19.822.024.226.628.9

31.433.936.539.141.8

44.547.4

000

9.2510.812.514.216.0

17.919.821.923.926.1

28.30000

00

8.369.7711.312.914.5

16.30000

0

7.610000

0






Factor23456

1.72.53.33.94.6

Lubricating Methods

A

B

C




33

10 25 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 1000 1100 1200 1300 1400


Lubrication System

A B C


910111213

1415161718

1920212223

2425262830

32354045

2.873.213.563.914.26

4.624.975.335.696.06

6.426.797.157.527.89

8.268.649.019.7610.5

11.312.414.316.3

6.547.328.128.929.72

10.511.312.213.013.8

14.615.516.317.218.0

18.919.720.622.324.0

25.728.332.737.2

12.213.715.116.618.1

19.721.222.724.225.8

27.328.930.532.033.6

35.236.838.441.644.8

48.052.961.169.4

22.825.528.331.133.9

36.739.542.445.248.1

51.053.956.859.862.7

65.668.671.677.583.5

89.698.7114129

32.836.740.744.748.8

52.856.961.065.269.3

73.577.781.986.190.3

94.698.8103112120

129142164186

42.547.652.757.963.2

68.473.779.184.489.8

95.2101106112117

122128134145156

167184213242

51.958.264.570.877.2

83.790.196.6103110

116123130136143

150156163177191

204225260295

61.268.576.083.591.0

98.6106114122129

137145153161169

176184192208225

241265306348

70.378.787.395.9105

113122131140149

158166175185194

203212221239258

277305352400

74.687.498.4108118

128138148158168

178188198208218

229239249270291

312344397451

62.973.384.596.3109

121135148162177

192207220231243

254266277300323

347382441501

53.362.472.182.192.5

104116127139151

164177190204218

233247262293325

358410485551

46.354.262.471.280.6

89.599.2110120131

142153165177190

203215228255283

310355434518

40.747.554.862.470.4

78.387.396.2105115

125134145155166

177188199222247

272311383457

36.042.248.655.462.4

69.877.685.193.3101

110119128137147

157166177198219

241276337402

32.237.743.549.555.9

62.469.276.183.691.0

98.5107115123131

140149158177196

216247301360

29.034.039.244.750.4

56.362.468.875.382.1

88.896.2104111126

126134143160177

195222272312

26.330.935.640.645.7

51.156.762.468.474.5

80.687.394.0101107

115122129145160

177202247260

24.028.232.537.041.8

46.751.857.062.468.0

73.879.885.891.898.5

104111118132146

161184225202

22.125.929.834.038.3

42.847.552.457.362.4

67.773.278.384.390.3

96.2102108121134

148169192141

18.922.125.429.032.8

36.640.644.748.953.3

57.862.467.272.176.8

82.187.392.5104115

126134

00

16.319.222.125.128.4

31.735.138.742.546.3

50.154.258.362.466.8

71.275.480.689.5

0

00

14.316.819.422.124.9

27.830.934.037.240.6

44.047.551.1

00

0000

12.714.917.219.622.1

24.70000

000

00000

0

10 25 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100 1150


Lubrication System

A B C


910111213

1415161718

1920212223

2425262830

32354045

3.704.154.605.055.51

5.966.436.897.367.82

8.298.779.249.7210.2

10.711.211.612.613.6

14.616.018.521.0

8.449.4610.511.512.6

13.614.715.716.817.8

18.920.021.122.223.3

24.325.426.528.831.0

33.236.642.348.0

15.817.719.621.523.4

25.427.429.331.333.3

35.337.339.341.443.4

45.447.549.553.757.8

62.068.378.989.6

29.432.936.540.143.7

47.451.054.758.462.1

65.969.673.477.281.0

84.888.692.4100108

116127147167

42.347.452.657.863.0

68.273.578.884.289.5

94.9100106111117

122128133144155

167184212241

54.961.568.174.881.6

88.495.2102109116

123130137144151

158165173187201

216238275312

67.175.183.391.599.8

108116125133142

150159167176185

193202211228246

264291336381

79.088.598.1108118

127137147157167

177187197207218

228238248269290

311343396449

90.8102113124135

146158169180192

203215227238250

262274285309333

357394455516

82.096.1111126142

159176191203216

229242256269282

295309322349376

403444513582

68.680.692.5106120

133148163178194

211228245263281

299318337377418

448493647507

58.668.679.190.3101

113126139152166

180194209224241

257273288322357

393450463471

50.859.568.678.388.0

98.5109120132143

155168181194207

221235249279309

340389429431

44.552.260.268.676.8

85.895.5105116126

137148159170182

194207219245272

299342391383

39.546.353.460.968.6

76.185.093.3102112

121131141151161

172183194217240

265303347329

35.441.447.854.561.4

68.676.183.691.8100

108117126135145

154164174194216

238272297269

31.937.443.149.155.4

61.868.675.382.890.3

97.7105113122131

139148157175194

214245242202

28.933.939.144.550.3

56.262.368.674.682.1

88.895.5103110119

126134143159176

194217182

0

26.431.035.740.745.9

51.356.862.768.674.6

81.387.394.0101108

115122130145161

178164

0

24.228.435.037.442.1

47.152.257.663.068.6

74.580.686.592.599.2

106113119133148

00

22.426.230.234.538.9

43.448.153.058.163.3

68.674.179.885.891.8

97.7104

000

20.724.228.031.936.0

40.244.549.153.858.6

63.668.673.9

00

00

19.222.526.029.633.4

37.441.445.7

00

000

18.021.024.227.7

0

000

0000






Factor23456

1.72.53.33.94.6

Lubricating Methods

A

B

C




34


CHAI

N4.094.585.085.586.08

6.597.107.618.138.64

9.169.6910.210.711.3

11.812.312.9

4.424.955.496.036.58

7.137.688.238.799.35

9.9110.511.011.612.2

12.813.313.9

10 15 20 30 40 50 70 100 150 200 250 300 350 400 450 500 550 600 650 700


Lubrication System

A B C


910111213

1415161718

1920212223

242526

5


Lubrication System

A B C


910111213

1415161718

1920212223

242526

6.377.147.918.699.47

10.311.111.912.713.5

14.315.115.916.717.5

18.419.220.0

8.259.2510.211.312.3

13.314.315.416.417.4

18.519.520.621.722.7

23.824.925.9

11.913.314.816.217.7

19.220.622.123.625.1

26.628.229.731.232.7

34.335.837.4

15.417.319.121.022.9

24.826.728.730.632.5

34.536.538.440.442.4

44.446.448.4

18.821.123.425.728.0

30.332.735.037.439.8

42.244.647.049.451.8

54.356.759.2

25.528.531.634.837.9

41.144.247.450.653.9

57.160.463.666.970.2

73.576.880.1

35.139.443.647.952.2

56.661.065.469.874.2

78.783.287.792.296.8

101106110

50.656.762.869.075.3

81.587.894.2101107

113120126133139

146152159

65.573.481.489.497.5

106114122130139

147155164172181

189198206

80.189.899.5109119

129139149159169

180190200210221

231241252

94.4106117129140

152164176188200

212224236248260

272285297

108122135148161

175188202216229

243257271285299

313327341

89.2105121137155

173192212232252

274290305321337

353369385

74.687.3101115130

145160177194212

229248267286305

326346367

63.774.685.898.5110

124137151166181

195211228244260

278295313

55.364.774.685.196.2

107119131143156

169183197211226

241256272

48.556.865.574.684.3

94.0104115126137

1480000

000

43.050.458.1

00

00000

0

000

7.638.559.4810.411.3

12.313.214.215.216.1

17.118.119.120.021.0

22.023.024.0

11.012.313.615.016.3

17.719.120.521.823.2

24.626.027.428.930.3

31.733.134.6

14.216.017.719.421.2

22.924.726.528.330.1

31.933.735.637.439.2

41.142.944.8

17.419.521.623.725.9

28.030.232.434.636.8

39.041.243.545.747.9

50.252.554.7

20.523.025.528.030.5

33.035.638.240.843.4

46.048.651.253.856.5

59.261.864.5

26.629.833.036.239.5

42.846.149.552.856.2

59.562.966.369.873.2

76.680.183.6

32.536.440.344.348.3

52.356.460.564.568.7

72.876.981.185.389.5

93.797.9102

38.342.947.552.256.9

61.766.471.276.180.9

85.890.795.6100105

110115120

49.655.661.667.673.8

79.986.192.398.5105

111117124130137

143149156

60.667.975.382.790.2

97.7105113120128

136144151159167

175183191

74.183.092.0101110

119129138147157

166175185195204

214223233

87.397.8108119130

141152163173185

196207218229240

252263275

100112125137149

162174187199212

225238250263276

289302315

113127140154168

182196211225239

253268282297312

326341356

138155172189206

223240257275292

310327345346370

396410418

159183202222242

263283299300303

317330345342359

376388397

126148170194219

245271269281291

304316328339350

360370380

103121140159179

200222245268281

293304314315334

000

86.510111600

00000

00000

000

10 15 20 25 30 40 50 60 80 100 125 150 175 200 250 300 350 400 450 500






Factor23456

1.72.53.33.94.6

Lubricating Methods

A

B

C




35

� Long life without lubricationThe most important determining factor of a chain’s life is lubrication. Even though the chain is non-lubricated, long life ispossible through the effectiveness of the special oil-impregnated bushing. And with the renewal of Lambda chain in1999 the wear life of New Generation Lambda far surpasses that of previous Lambda chain (Standard type).

• Twice the wear elongation life of previous Standard Lambda (–10°C ~ +60°C / +14°F ~ +140°F)• More than 14 times the wear elongation life of Standard RS Roller Chain

(N.B. #120 and #140 have 5 times the life of Standard RS Roller Chain)

� InterchangeabilityLambda Chain is interchangeable with Standard RS Roller Chain. However, as the pins are longer than that of StandardRS Roller Chain, please make sure that there is no interference with the machine.

� Operating Temperature–10°C ~ +150°C (+14°F ~ +302°F)

� SprocketStandard RS Roller Chain sprockets can be used. (Limited to single strand Roller Chain only)

� Basic Construction

Ambient Temperature: –10°C ~ +60°C (+14°F ~ +140°F)

Operation Time

New Generation Lambda

Previous Standard LambdaStandard RS Roller Chain

0.5

0

Wea

r E

long

atio

n (%

)

In-house comparison (non-lubricated operation)

Lube-Free Roller ChainFurther Advanced Lube-Free Roller Chain

LAMBDA CHAINNearly 15 years have now passed since Lambda Chain was introduced to the market thanks tothe continued support from all of our devoted customers. During this time, it has been used in avariety of industries and applications, and its wear resistant function has been highly regarded. With the renewal of Lambda Chain in 1999, we were able to achieve an even more highly func-tional and high quality chain than the conventional Lambda Chain (Standard type). We hope youcan make use of this chain, which reduces maintenance frequency, improves the working environ-ment and increases productivity.

Roller

Special Oil-Impregnated Bushing

Lambda Chain (Std.): Inner/Outer plates are blackenedLambda Chain (Nickel Plated): All nickel-plated (except bushings)

36


CHAI

N

h H

P P

L0D 0R

L1T

1

T2

W

L2

#40 to #80 #100 to #140

L

� STANDARD · TYPE

� NICKEL PLATED

TSUBAKI Chain No.

PitchP Thickness T1 Thickness T2 Height H Height h

Plate

D L1 L2 L

PinTSUBAKI Chain No.

Ave. TensileStrengthkN(kgf)

Max. AllowableLoad

kN(kgf)

Approx.Masskg/m

Plate

RSD 40-Λ

RSD 50-Λ

RSD 60-Λ

RSD 80-Λ

RSD100-ΛRSD120-ΛRSD140-Λ

RSD 40-Λ

RSD 50-Λ

RSD 60-Λ

RSD 80-Λ

RSD100-ΛRSD120-ΛRSD140-Λ

12.70 15.87519.05 25.40 31.7538.1044.45

3.975.095.967.949.54

11.1112.71

7.9510.1611.9115.8819.0522.2325.40

8.7810.7513.7517.1520.6525.7527.70

7.55 9.2612.2815.4818.7024.7524.75

10.4512.4515.6520.2523.8529.9532.20

1.52.02.43.24.04.85.6

20.024.032.039.947.559.063.7

2.02.43.24.04.85.66.4

19.1 (1,950) 31.4 (3,200) 44.1 (4,500) 78.5 (8,000)118 (12,000)167 (17,000)216 (22,000)

12.015.018.124.130.136.242.2

3.63 (370) 6.37 (650) 8.83 (900)14.7 (1,500)22.6 (2,300)30.4 (3,100)40.2 (4,100)

10.413.015.620.826.031.236.4

0.701.111.722.774.306.408.10

PitchP

D

3.975.095.967.949.54

11.1112.71

12.70 15.87519.05 25.40 31.7538.1044.45

Roller Diam.R

Width b/w RollerLink Plates

W

Ave. TensileStrengthkN(kgf)

Max. AllowableLoad

kN(kgf)

Width b/w RollerLink Plates

W

L1

8.7810.7513.7517.1520.6525.7527.70

7.9510.1611.9115.8819.0522.2325.40

Roller Diam.R

L2

10.4512.4515.6520.2523.8529.9532.20

7.55 9.2612.2815.4818.7024.7524.75

L

20.024.032.039.947.559.063.7

1.52.02.43.24.04.85.6

Thickness T1

Pin

2.02.43.24.04.85.66.4

Thickness T2

19.1 (1,950) 31.4 (3,200) 44.1 (4,500) 78.5 (8,000)118 (12,000)167 (17,000)216 (22,000)

12.015.018.124.130.136.242.2

Height H

3.04 (310) 5.39 (550) 7.26 (740)12.7 (1,300)19.1 (1,950)25.5 (2,600)34.3 (3,500)

10.413.015.620.826.031.236.4

Height h

Approx.Masskg/m

0.701.111.722.774.306.408.10

Notes: 1. RSD80-Λ connecting links have cottered pins. 2. Chain itself and connecting links are all cottered type for RSD100-Λ and over. 3. In case of multi-strands, please consult TSUBAKI.

(Dimensions in mm)

TSUBAKI Chain No.

RSD 40NP-Λ

RSD 50NP-Λ

RSD 60NP-Λ

RSD 80NP-Λ

RSD100NP-ΛRSD120NP-ΛRSD140NP-Λ

TSUBAKI Chain No.

Nickel Plated

Nickel Plated

RSD 40NP-Λ

RSD 50NP-Λ

RSD 60NP-Λ

RSD 80NP-Λ

RSD100NP-ΛRSD120NP-ΛRSD140NP-Λ

Lambda Chain (Λ)

37

� Operating Temperature: –10°C ~ +150°C (+14°F ~ +302°F)� Sprocket

Since the chain’s transverse pitch (C) differs to that of Standard RS Roller Chain, RS Standard Double-Strand Sprocketscannot be used. Exclusive sprockets must be used.

� kW Rating Capacity: (Multi-Strand Coefficient)The multi-strand coefficient of double-strand Lambda Chain is 1.4. Multiply the kilowatt rating values on pages 41 - 43when making your selection. In case of chain replacement there is a decline in kW rating capacity compared withStandard RS Roller Chain. Please confirm. In order to make the multi-strand coefficient the same as Standard RSDouble-Strand Roller Chain (1.7), it is necessary to increase the thickness of outer and middle link plates by one size.

� Offset LinkOffset links are not available. Please use an even number of links.

� Pin LengthThe plate thickness of the inner plate is thicker than that of Standard RS Roller Chain, and the pin length (L1, L2) hasbeen increased by the difference. Please check for any interference.

L1

T1

T2

WH

R

L2

hC

D

PPThere are no offset links for double-strand Lambda. For connecting links greater than #80 size the pin is a cotter pin type.

D-Λ Double-Strand Chain

Chain No. Pitch

P

Link Plate Pin

ThicknessT1

ThicknessT2

HeightH

Heighth

Diam.D L1 L2

RSD 40Λ-2

RSD 50Λ-2

RSD 60Λ-2

RSD 80Λ-2

RSD100Λ-2

RSD 40NPΛ-2

RSD 50NPΛ-2

RSD 60NPΛ-2

RSD 80NPΛ-2

RSD100NPΛ-2

12.70

15.875

19.05

25.40

31.75

TransversePitch

C15.4

19.0

24.52

31.1

37.6

RollerDiam.

R

Nickel Plated(NP)

Standard

7.92

10.16

11.91

15.88

19.05

Width b/wInner

Link PlatesW7.55

9.26

12.28

15.48

18.70

1.5

2.0

2.4

3.2

4.0

2.0

2.4

3.2

4.0

4.8

12.0

15.0

18.1

24.1

30.1

10.4

13.0

15.6

20.8

26.0

3.97

5.09

5.96

7.94

9.54

16.5

20.2

26.05

32.7

39.5

18.1

22.0

28.05

35.9

42.5

Chain No. Ave. TensileStrength

kN(kgf)

Max. Allowable Load kN(kgf)

Standard Nickel Plated

RSD 40Λ-2

RSD 50Λ-2

RSD 60Λ-2

RSD 80Λ-2

RSD100Λ-2

RSD 40NPΛ-2

RSD 50NPΛ-2

RSD 60NPΛ-2

RSD 80NPΛ-2

RSD100NPΛ-2

38.2 (3900)

62.8 (6400)

88.3 (9000)

157 (16000)

235 (24000)

Allowable Speed

m/min150

135

120

90

80

Approx. Mass

kg/m

Nickel Plated(NP)

Standard

1.4

2.2

3.4

5.5

8.6

No. ofLinks/Unit

240

192

160

120

96

5.08 (518)

8.92 (910)

12.4 (1260)

20.6 (2100)

31.6 (3220)

4.26 (430)

7.55 (770)

10.2 (1040)

17.8 (1820)

26.7 (2730)

38


CHAI

N� Are you satisfied with your current chain?When……

• Wear elongation occurs in a short period of time, and you are contin-ually replacing your chain;

• Wear elongation causes you to continually perform maintenance (Ex.machine positioning adjustments);

• You are already using a lube-free chain, but want to extend the peri-od of time between replacement;

……consider X-LAMBDA

� FeaturesUltra Long LifeThe inclusion of a felt seal in the construction of X-Λ has increased the anti-wear performance to more than 5 times that of Tsubaki’s LAMBDA chain. (In-house comparison at –10°C ~ +60°C (+14°F ~ +140°F))

Ambient temperature range (–10°C ~ +60°C/+14°F ~ +140°F)

Mid-Temperature Range (+150°C/+302°F)

� Operating Temperature–10°C ~ +150°C (+14°F ~ +302°F)

� SprocketStandard RS Roller Chain sprockets can be used. (Only for Single Strand Chain)

Basic Construction

Inner/Outer Plates: Blackened

Felt Seal

Felt Seal

Roller

Special Oil Impregnated Bushing

Former Standard Lambda

X-Lambda

In-house testing

Operation Time


0.5

0

Wea

r E

long

atio

n (%

)

X-Lambda

In-house testing

Operation Time


0.5

0

Wea

r E

long

atio

n (%

)

Lube-Free Roller Chain ®

The Definitive Lube-Free Roller Chain

X-LAMBDA Chain (Pat.)

Through the effectiveness of an oil impregnated “Felt Seal”, X-Λ Lambda Chain vastly outperforms the anti-wear functions of all previous Lambda specifications.

39

T2T

1

L1L2

D R WHh

P P

X-Lambda has no offset links.

For #80 size and above, the connecting links arecottered pin type.

� kW Rating Capacity: Pgs. 41 - 43� Operating Temperature: –10°C ~ +150°C (+14°F ~ +302°F)� Sprocket: Standard RS Roller Chain sprockets can be used. (Only for Single Strand Chain)� Attention for Use:

• Inner plate is thicker than Standard RS Roller Chain. Also, due to the insertion of the Felt Seal, the pin is now longer (L1,L2). Please check for any interference.

• Offset links are not available. Please use an even number of links.• As the Felt Seal is oil impregnated, the surface of X-Lambda has more oil on it than Standard Lambda Chain.

� Method of ConnectingWhen connecting the chain, please use an X-Lambda Chain connecting link (with a Felt Seal). As shown in Diag. 1, in-sert felt seals between the outer plate and the connecting link plate then attach the link. (Please refer to page 71 for es-sentials on cutting/connecting).

X-Lambda Chain (X-Λ)

X-Lambda

Pitch

P

Plate Pin

ThicknessT1

ThicknessT2

HeightH

Heighth

Diam.D L1 L2

RSD 40X-ΛRSD 50X-ΛRSD 60X-ΛRSD 80X-ΛRSD100X-ΛRSD120X-Λ

12.70

15.875

19.05

25.40

31.75

38.10

RollerDiam.

R7.92

10.16

11.91

15.88

19.05

22.23

Width b/w Inner Link

PlatesW7.55

9.26

12.28

15.48

18.70

24.75

1.5

2.0

2.4

3.2

4.0

4.8

2.0

2.4

3.2

4.0

4.8

5.6

12.0

15.0

18.1

24.1

30.1

36.2

10.4

13.0

15.6

20.8

26.0

31.2

3.97

5.09

5.96

7.94

9.54

11.11

9.4

11.4

14.8

18.3

21.8

26.7

11.1

13.1

16.5

20.9

24.5

30.75

X-LambdaAve. Tensile Strength

kN(kgf)

RSD 40X-ΛRSD 50X-ΛRSD 60X-ΛRSD 80X-ΛRSD100X-ΛRSD120X-Λ

19.1 (1950)

31.4 (3200)

44.1 (4500)

78.5 (8000)

118.0 (12000)

167.0 (17000)

Max. Allowable Load

kN(kgf)

363.0 (370)

6.37 (650)

8.83 (900)

14.7 (1500)

22.6 (2300)

30.4 (3100)

Approx. Mass

kg/m

0.70

1.11

1.72

2.77

4.30

6.4

No. ofLinks/Unit

240

192

160

120

96

80

Allowable Speed

m/min

150

135

120

90

80

50

Outer Plate

Felt SealFelt Seal

Connecting Link Plate

Clip(For #80 size and above the pin is a cotter pin type)

Diag. 1 Attaching the connecting link

40


CHAI

N

� Operating Temperature: –10°C ~ +150°C (+14°F ~ +302°F)� Sprocket: RS Standard sprockets can be used.� Chain with attachments can also be manufactured.� Please refer to point 4.6 on page 97 for installation method.

P P

h H

r

T

T

L1L2

D WR

Curved Λ Lambda Chain

Chain No.

Pitch

P

Link Plate Pin

ThicknessT

HeightH

Heighth

Diam.D L1 L2

RSC40CU-ΛRSC50CU-ΛRSC60CU-Λ

12.70

15.875

19.05

Min.Radius

r400

500

600

Ave.Tensile

StrengthkN(kgf)

12.4(1260)

19.2(1960)

27.9(2840)

Max.Allowable

LoadkN(kgf)

1.86(190)

2.84(290)

4.02(410)

Approx.Mass

kg/m0.61

1.01

1.40

No. ofLinks/Unit

240

192

160

RollerDiam.

R7.92

10.16

11.91

Width b/wInner

Link PlatesW7.95

9.53

12.70

1.5

2.0

2.4

12.0

15.0

18.1

10.4

13.0

15.6

3.59

4.45

5.35

8.45

10.3

12.95

L1 + L2

18.2

22.0

27.5

9.75

11.7

14.55

� Operating Temperature: –10°C ~ +150°C (+14°F ~ +302°F)� Sprocket: Please use sprockets for BS Chain (ISO standard “B” series).

L1

T1

T2

W

h H

L2

D

P P

R

BS Lambda Roller Chain

Chain No.

Pitch

P

Link Plate Pin

ThicknessT1

HeightH

Heighth

Diam.D L2 L

RSD08B-ΛRSD10B-ΛRSD12B-ΛRSD16B-Λ

12.70

15.875

19.05

25.40

Ave.Tensile

StrengthkN(kgf)

18.8(1920)

26.0(2650)

33.3(3400)

73.5(7490)

Approx.Mass

kg/m0.7

1.04

1.50

2.81

No. ofLinks/Unit

240

192

160

120

RollerDiam.

R8.51

10.16

12.07

15.88

Width b/wInner

Link PlatesW7.75

9.65

11.68

17.02

1.5

2.0

2.4

3.2

ThicknessT2

2.0

2.0

2.4

3.4

11.8

15.0

18.1

24.1

10.4

13.0

15.6

20.8

3.97

5.09

5.96

7.94

10.45

12.0

14.3

20.25

L1

8.75

10.3

12.4

17.15

20.0

22.5

28.9

39.9

41

MAXIMUM KILOWATT RATINGS ✽ 80% performance with offset link

10


910111213

1415161718

1920212223

2425262830

32354045

0.050.050.060.070.07

0.080.080.090.100.10

0.110.120.120.130.13

0.140.150.150.170.18

0.190.210.240.28

25

0.110.120.140.150.17

0.180.190.210.220.23

0.250.260.280.290.31

0.320.330.350.380.41

0.440.480.560.63

50

0.210.230.260.280.31

0.330.360.390.410.44

0.460.490.520.540.57

0.600.620.650.710.76

0.810.901.041.18

100

0.390.430.480.530.57

0.620.670.720.770.82

0.870.920.961.011.06

1.111.161.211.321.42

1.521.671.932.20

200

0.720.810.900.981.07

1.161.251.341.431.52

1.621.711.801.891.99

2.082.172.272.462.65

2.843.133.614.10

300

1.041.161.291.421.54

1.671.801.932.062.20

2.332.462.592.732.86

3.003.133.273.543.81

4.094.50

400

1.351.511.671.842.00

2.172.342.502.672.84

3.023.193.363.533.71

3.884.064.234.58

500

1.641.842.042.242.45

2.652.863.063.273.48

3.693.904.114.324.53

700

2.232.492.763.043.31

3.593.874.14

900

2.793.133.473.814.15

1,000

3.073.443.81

1,200

3.62


10


910111213

1415161718

1920212223

2425262830

32354045

0.100.110.120.140.15

0.160.170.190.200.21

0.230.240.250.260.28

0.290.300.320.340.37

0.400.440.500.57

25

0.230.260.280.310.34

0.370.400.430.460.49

0.510.540.570.600.63

0.660.690.720.780.84

0.900.991.151.30

50

0.430.480.530.580.64

0.690.740.800.850.91

0.961.011.071.121.18

1.241.291.351.461.57

1.691.862.142.44

100

0.800.900.991.091.19

1.291.391.491.591.69

1.791.892.002.102.20

2.302.412.512.722.93

3.143.464.004.54

200

1.491.671.852.032.22

2.402.592.782.963.15

3.343.533.723.914.11

4.304.494.695.085.47

5.876.467.47

300

2.152.412.672.933.19

3.463.734.004.274.54

4.815.095.365.645.92

6.196.476.757.32

400

2.783.123.463.804.14

4.484.835.185.535.88

6.246.596.95

500

3.403.814.224.645.06

5.485.916.336.76

600

4.014.494.985.475.96

6.46

700

4.605.165.726.28

800

5.195.82

900

5.77


10


910111213

1415161718

1920212223

2425262830

32354045

0.180.200.220.240.26

0.290.310.330.350.38

0.400.420.440.470.49

0.510.540.560.610.65

0.700.770.891.01

25

0.410.450.500.550.60

0.650.700.750.810.86

0.910.961.011.061.12

1.171.221.281.381.49

1.601.762.032.31

50

0.760.850.941.031.13

1.221.311.411.501.60

1.701.791.891.992.08

2.182.282.382.582.78

2.983.283.794.30

100

1.411.581.751.932.10

2.282.452.632.812.98

3.163.343.533.713.89

4.074.264.444.815.18

5.566.127.078.03

150

2.032.282.532.773.03

3.283.533.794.044.30

4.564.825.085.345.60

5.876.136.406.937.46

8.008.8210.2

200

2.632.953.273.593.92

4.254.574.905.245.57

5.906.246.586.927.26

7.607.948.298.989.67

250

3.223.614.004.394.79

5.195.596.006.406.81

7.227.638.048.468.87

9.299.71

300

3.794.254.715.185.65

6.126.597.067.548.02

8.518.99

400

4.925.516.116.717.31

7.928.54

500

6.016.737.468.20

600

7.087.94

700

8.14


� RSD40Λ MAXIMUM KILOWATT RATINGS



42


CHAI

N

10


910111213

1415161718

1920212223

2425262830

32354045

0.400.450.490.540.59

0.640.690.740.790.84

0.890.940.991.041.10

1.151.201.251.361.46

1.571.731.992.26

No. ofTeethSmallSpkt. 25

0.911.021.131.241.35

1.461.581.691.801.92

2.032.152.272.382.50

2.622.742.853.093.33

3.573.944.555.16

50

1.691.902.102.312.52

2.732.943.153.373.58

3.804.014.234.454.67

4.895.115.335.776.22

6.677.348.489.63

75

2.442.733.033.333.63

3.934.244.544.855.16

5.475.786.096.416.72

7.047.357.678.318.96

9.6010.612.213.9

100

3.163.543.934.314.70

5.095.495.886.286.68

7.087.497.898.308.71

9.129.539.9410.811.6

12.413.7

125

3.864.334.805.275.75

6.236.717.197.688.17

8.669.159.6510.110.6

11.111.612.213.2

150

4.555.105.656.216.77

7.347.908.489.059.63

10.210.811.412.012.5

200

5.906.617.338.058.77

9.5110.211.011.7

250

7.218.088.969.8410.7

11.6

300

8.509.5210.6

350

9.7610.9

10


910111213

1415161718

1920212223

2425262830

32354045

0.660.740.820.900.99

1.071.151.231.321.40

1.491.571.661.741.83

1.912.002.092.262.43

2.612.883.323.77

25

1.511.701.882.062.25

2.442.632.823.013.20

3.393.583.783.974.17

4.364.564.765.155.55

5.956.567.588.60

50

2.823.163.513.854.20

4.554.905.265.615.97

6.336.697.057.417.78

8.148.518.889.6210.4

11.112.214.116.1

75

4.074.565.055.556.05

6.557.067.578.088.60

9.119.6310.210.711.2

11.712.312.813.914.9

16.0

100

5.275.906.547.197.84

8.499.159.8110.511.1

11.812.513.213.814.5

15.215.9

125

6.447.228.008.799.58

10.411.212.012.813.6

14.415.3

150

7.598.509.4210.411.3

12.213.214.1

175

8.729.7710.811.913.0

14.0

200

9.8311.012.213.4

225

10.912.213.6

250

12.013.5

275

13.1


5


910111213

1415161718

1920212223

2425262830

32354045

0.650.730.810.890.97

1.051.131.211.291.38

1.461.541.631.711.79

1.881.962.052.222.39

2.562.823.263.70

10

1.221.361.511.661.81

1.962.112.262.412.57

2.722.883.033.193.35

3.503.663.824.144.46

4.785.276.086.91

15

1.751.962.172.392.60

2.823.043.263.483.70

3.924.154.374.604.82

5.055.285.505.966.42

6.897.598.769.95

20

2.272.542.823.093.37

3.653.944.224.514.79

5.085.375.665.956.25

6.546.837.137.728.32

8.929.8311.412.9

25

2.773.113.443.784.12

4.474.815.165.515.86

6.216.576.927.287.64

7.998.358.729.4410.2

10.912.013.915.8

30

3.273.664.064.464.86

5.265.676.086.496.90

7.327.748.158.589.00

9.429.8410.311.112.0

12.914.216.4

40

4.234.745.255.776.29

6.827.357.888.418.94

9.4810.010.611.111.7

12.212.813.314.415.5

16.7

50

5.175.806.427.067.69

8.338.989.6310.310.9

11.612.312.913.614.2

14.915.616.3

60

6.096.837.578.319.07

9.8210.611.312.112.9

13.714.415.2

80

7.908.859.8110.811.7

12.713.714.7

100

9.6510.812.013.214.4

125

11.813.2





43

5


910111213

1415161718

1920212223

2425262830

323540

1.021.141.271.391.52

1.641.771.902.032.16

2.292.422.552.682.81

2.943.073.213.483.74

4.014.425.11

10

1.902.132.362.602.83

3.073.303.543.784.02

4.274.514.755.005.24

5.495.745.996.486.99

7.498.259.53

15

2.743.073.413.744.08

4.424.765.105.455.80

6.146.496.857.207.55

7.918.268.629.3410.1

10.811.913.7

20

3.553.984.414.855.28

5.726.176.617.067.51

7.968.418.879.339.78

10.210.711.212.113.0

14.015.417.8

25

4.344.875.395.926.46

7.007.548.088.639.18

9.7310.310.811.412.0

12.513.113.714.815.9

17.118.821.7

30

5.125.736.356.987.61

8.258.889.5210.210.8

11.512.112.813.414.1

14.815.416.117.418.8

20.122.2

40

6.637.438.239.049.86

10.711.512.313.214.0

14.915.716.617.418.3

19.120.020.822.6

50

8.109.0810.111.112.1

13.114.115.116.117.1

18.219.220.221.3

60

9.5510.711.913.014.2

15.416.617.819.020.2

80

12.413.915.416.918.4

19.9

100

15.116.918.8

125

18.5



44


CHAI

N

� Wide Array of Products with Outstanding ReliabilityThrough the expansion of product types TSUBAKI Heavy Duty Roller Chain can easily be used in a much wider range ofdrive conditions. And since TSUBAKI chain is produced at an ISO 9001 International Standards accredited plant, out-standing reliability is assured.

� Areas of UsePlease use TSUBAKI Heavy Duty Roller Chain in the following applications, which exceed the capability of RS Roller Chain.1. Severe conditions accompanied by large shocks.2. Equipment requiring limited space and compact drive of a machine.3. Higher kW ratings, allowable load, and tensile strength are required.4. Applications that require a lower elastic elongation ratio.

� Applications & Features

� Comparison of Tensile Strength / Fatigue Strength

Product Type

ItemSUPER Roller Chain RS-HT Roller Chain SUPER-H Roller Chain ULTRA SUPER Chain (US)

Application

Heavy Duty Transmissions Mainly Lifting Heavy Duty Transmissions

• For low / medium speedheavy duty transmissionsEx. · Construction machinery

transmissions· Truck transmissions· Agricultural machinerytransmissions

· Elevator drives

• Lifting with low frequency of use• Can be used in low speed

drives up to 50 m/minEx. · Vertical parking facilities

· Heavy machinerytransmissions

· Small agriculturalmachinery transmissions

• Low speed drives up to50 m/min

• Transmissions withshock loads and torque

• Low speed drives up to50 m/min

• Transmissions requiringa compact design

Features

• High kW ratings(30% higher than RS RollerChain)

• High shock absorbency• Can go down a size

when used in place ofRS Roller Chain

• High tensile strength(19% higher than RS RollerChain)

• High fatigue strength(6% higher than SUPERRoller Chain)

• High tensile strength(13% higher than SUPERRoller Chain)

• High shock absorbency

• Highest fatigue strength(16% higher than SUPER-HRoller Chain)

• Highest tensile strength(17% higher than SUPER-HRoller Chain)

• High shock absorbencyCan go down two sizes whenused in place of RS Roller Chain

Dimensions Page Pg. 46 Pg. 47 Pg. 48 Pg. 49

RS Roller Chain

SUPER Roller Chain

RS-HT Roller Chain


ULTRA SUPER Chain

100

109

119

123

144

Comparison of tensile strength (average tensile strength) when RS Roller Chain is 100.

RS Roller Chain

SUPER Roller Chain

RS-HT Roller Chain


ULTRA SUPER Chain

100

132

109

140

162

Comparison of fatigue strength (average fatigue strength) when RS Roller Chain is 100.

Heavy Duty Roller Chain

45

� Essential Points

� RO Heavy Loading Roller Chain …… Dimensions on Pg. 50

SUPER Roller Chain SUPER-H Roller Chain

RS-HT Roller Chain ULTRA SUPER Chain (US)

Large Powerful transmissions / Lifting1. Outstanding shock resistance through the use of opti-

mal materials and heat treatment.2. Structure allows use under severe conditions, such as

in construction machinery.3. Shafts are filled with a high-grade lubricant resulting in

an improvement in wear resistance.4. Can be used with an even number of links.5. Standard sprockets for RS Roller Chain cannot be used.6. Please consult TSUBAKI regarding chain selection.

SUPER-H Roller Chain ULTRA SUPER Chain

Standard sprockets for RSRoller Chain can be used. (Multi-strand chain is notavailable.)

Please use sprockets made of carbon steel, such as S35C, and a sprocket with alow number of hardened teeth. Sprockets made of cast iron cannot be used.

RS-HT Roller Chain

All selection methods outlined in this catalog are applicable except for generalselection.

Standard sprockets for RS Roller Chain can be used forsingle strand chain. Sprockets for multi-strand chainare made-to-order.

Product Type

ItemSUPER Roller Chain

SelectionMethod

All the selection methods outlinedin this catalog, including thegeneral selection method, areapplicable.

Offset Links There are no offset links. Please use an even number of links.4POL

Sprockets

Standard sprockets for RSRoller Chain can be usedfor single and multi-strandchain.

46


CHAI

N

SUPER SERIES

P

DR

P

hHW

T

L2L1

L2L1

L2L1

C

CC

TSUBAKIChain No.

Max.Allowable

LoadkN(kgf)

Approx.Mass

kg/m

Ave.Tensile

StrengthkN(kgf)

TransversePitch

C

Pitch

P

RollerDiam.

R

Width b/wRoller Link

PlatesW

Link Pin

T H h D L1 L2

SUPER 80

SUPER100

SUPER120

SUPER140

SUPER160

SUPER200

SUPER240

SUPER 80-2

SUPER100-2

SUPER120-2

SUPER140-2

SUPER160-2

SUPER200-2

SUPER240-2

SUPER 80-3

SUPER100-3

SUPER120-3

SUPER140-3

SUPER160-3

SUPER200-3

SUPER240-3

SINGLE STRAND

DOUBLE STRAND

TRIPLE STRAND

25.40

31.75

38.10

44.45

50.80

63.50

76.20

25.40

31.75

38.10

44.45

50.80

63.50

76.20

25.40

31.75

38.10

44.45

50.80

63.50

76.20

15.88

19.05

22.23

25.40

28.58

39.68

47.63

15.88

19.05

22.23

25.40

28.58

39.68

47.63

15.88

19.05

22.23

25.40

28.58

39.68

47.63

15.88

19.05

25.40

25.40

31.75

38.10

47.63

15.88

19.05

25.40

25.40

31.75

38.10

47.63

15.88

19.05

25.40

25.40

31.75

38.10

47.63

3.2

4.0

4.8

5.6

6.4

8.0

9.5

3.2

4.0

4.8

5.6

6.4

8.0

9.5

3.2

4.0

4.8

5.6

6.4

8.0

9.5

24.1

30.1

36.2

42.2

48.2

60.3

72.4

24.1

30.1

36.2

42.2

48.2

60.3

72.4

24.1

30.1

36.2

42.2

48.2

60.3

72.4

20.8

26.0

31.2

36.4

41.6

52.0

62.4

20.8

26.0

31.2

36.4

41.6

52.0

62.4

20.8

26.0

31.2

36.4

41.6

52.0

62.4

7.94

9.54

11.11

12.71

14.29

19.85

23.81

7.94

9.54

11.11

12.71

14.29

19.85

23.81

7.94

9.54

11.11

12.71

14.29

19.85

23.81

16.25

19.75

24.9

26.9

31.85

39.0

47.9

30.9

37.7

47.6

51.35

61.15

74.85

91.9

45.6

55.65

70.4

75.85

90.45

110.75

135.85

19.25

22.85

28.9

31.7

36.85

44.8

55.5

33.9

40.8

51.6

56.15

66.15

80.65

99.4

48.5

58.75

74.4

80.75

95.45

116.45

143.15

—

—

—

—

—

—

—

29.3

35.8

45.4

48.9

58.5

71.6

87.8

29.3

35.8

45.4

48.9

58.5

71.6

87.8

85.3 (8,700)

127 (13,000)

186 (19,000)

245 (25,000)

314 (32,000)

505 (51,500)

735 (75,000)

171 (17,400)

255 (26,000)

373 (38,000)

490 (50,000)

628 (64,000)

1,010 (103,000)

1,470 (150,000)

253 (26,100)

382 (39,000)

559 (57,000)

735 (75,000)

941 (96,000)

1,520 (154,500)

2,210 (225,000)

18.6 (1,900)

30.4 (3,100)

39.2 (4,000)

53.9 (5,500)

70.6 (7,200)

94.1 (9,600)

132 (13,500)

31.7 (3,230)

51.7 (5,270)

66.7 (6,800)

91.7 (9,350)

120 (12,240)

160 (16,320)

225 (22,950)

46.6 (4,750)

76.0 (7,750)

98.1 (10,000)

135 (13,750)

177 (18,000)

235 (24,000)

331 (33,750)

2.81

4.25

6.30

8.04

10.79

17.63

25.63

5.62

8.38

12.44

15.92

21.43

34.91

50.88

8.40

12.57

18.64

23.84

32.10

52.44

76.11

Notes: 1. 4POL is available for single strand. 2. Riveted type chain will be provided unless otherwise specified. Roll pin type chain will be provided upon request. 3. Semi press-fit type connecting links will be supplied.

(Dimensions in mm)

47

RS-HT SERIES

TSUBAKIChain No.

Max.Allowable

LoadkN(kgf)

Approx.Mass

kg/m

Ave.Tensile

StrengthkN(kgf)

TransversePitch

C

Pitch

P

RollerDiam.

R

Link Pin

T H h D L1 L2

RS 60HT

RS 80HT

RS100HT

RS120HT

RS140HT

RS160HT

RS200HT

RS240HT

RS 60HT-2

RS 80HT-2

RS100HT-2

RS120HT-2

RS140HT-2

RS160HT-2

RS200HT-2

RS240HT-2

RS 60HT-3

RS 80HT-3

RS100HT-3

RS120HT-3

RS140HT-3

RS160HT-3

RS200HT-3

RS240HT-3

SINGLE STRAND

DOUBLE STRAND

TRIPLE STRAND

19.05

25.40

31.75

38.10

44.45

50.80

63.50

76.20

19.05

25.40

31.75

38.10

44.45

50.80

63.50

76.20

19.05

25.40

31.75

38.10

44.45

50.80

63.50

76.20

11.91

15.88

19.05

22.23

25.40

28.58

39.68

47.63

11.91

15.88

19.05

22.23

25.40

28.58

39.68

47.63

11.91

15.88

19.05

22.23

25.40

28.58

39.68

47.63

12.70

15.88

19.05

25.40

25.40

31.75

38.10

47.63

12.70

15.88

19.05

25.40

25.40

31.75

38.10

47.63

12.70

15.88

19.05

25.40

25.40

31.75

38.10

47.63

3.2

4.0

4.8

5.6

6.4

7.15

9.5

12.7

3.2

4.0

4.8

5.6

6.4

7.15

9.5

12.7

3.2

4.0

4.8

5.6

6.4

7.15

9.5

12.7

18.1

24.1

30.1

36.2

42.2

48.2

60.3

72.4

18.1

24.1

30.1

36.2

42.2

48.2

60.3

72.4

18.1

24.1

30.1

36.2

42.2

48.2

60.3

72.4

15.6

20.8

26.0

31.2

36.4

41.6

52.0

62.4

15.6

20.8

26.0

31.2

36.4

41.6

52.0

62.4

15.6

20.8

26.0

31.2

36.4

41.6

52.0

62.4

5.96

7.94

9.54

11.11

12.71

14.29

19.85

23.81

5.96

7.94

9.54

11.11

12.71

14.29

19.85

23.81

5.96

7.94

9.54

11.11

12.71

14.29

19.85

23.81

14.8

18.3

21.8

26.95

28.9

33.95

42.9

54.8

27.8

34.6

41.4

51.4

54.95

64.9

82.05

105.3

40.85

50.95

61.0

75.85

81.15

95.95

121.25

156.05

17.0

20.9

24.5

30.55

33.1

38.45

48.1

62.3

29.9

37.2

44.1

55.0

59.5

69.6

87.3

112.9

42.95

53.55

63.6

79.55

85.25

100.45

126.55

163.55

—

—

—

—

—

—

—

—

26.1

32.6

39.1

48.9

52.2

61.9

78.3

101.2

26.1

32.6

39.1

48.9

52.2

61.9

78.3

101.2

55.9 (5,700)

93.2 (9,500)

142 (14,500)

191 (19,500)

250 (25,500)

319 (32,500)

559 (57,000)

883 (90,000)

112 (11,400)

186 (19,000)

284 (29,000)

382 (39,000)

500 (51,000)

638 (65,000)

1,120 (114,000)

1,770 (180,000)

168 (17,100)

279 (28,500)

427 (43,500)

574 (58,500)

750 (76,500)

956 (97,500)

1,680 (171,000)

2,650 (270,000)

9.81 (1,000)

16.2 (1,650)

24.5 (2,500)

32.4 (3,300)

42.7 (4,350)

55.9 (5,700)

78.5 (8,000)

113 (11,500)

16.7 (1,700)

27.6 (2,810)

41.7 (4,250)

55.0 (5,610)

72.6 (7,400)

95.0 (9,690)

133 (13,600)

192 (19,550)

24.5 (2,500)

40.5 (4,130)

61.3 (6,250)

80.9 (8,250)

107 (10,880)

140 (14,250)

196 (20,000)

282 (28,750)

1.80

3.11

4.58

6.53

8.27

10.97

18.41

29.13

3.59

6.18

9.03

12.90

16.38

21.78

36.47

57.35

5.36

9.24

13.54

19.33

24.54

32.63

54.77

85.47

Notes: 1. Riveted type chain will be provided unless otherwise specified. 2. Cottered type chain will be provided upon request. 3. Semi press-fit type connecting links will be supplied.

(Dimensions in mm)


PlatesW

Single-Strand Double-Strand Triple-Strand

48


CHAI

N

SUPER-H SERIES

TSUBAKIChain No.

Max.Allowable

LoadkN(kgf)

Approx.Mass

kg/m

Ave.Tensile

StrengthkN(kgf)

TransversePitch

C

Pitch

P

RollerDiam.

R

Link Pin

T H h D L1 L2

SUPER 80H

SUPER100H

SUPER120H

SUPER140H

SUPER160H

SUPER200H

SUPER240H

SUPER 80H-2

SUPER100H-2

SUPER120H-2

SUPER140H-2

SUPER160H-2

SUPER200H-2

SUPER240H-2

SUPER 80H-3

SUPER100H-3

SUPER120H-3

SUPER140H-3

SUPER160H-3

SUPER200H-3

SUPER240H-3

SINGLE STRAND

DOUBLE STRAND

TRIPLE STRAND

25.40

31.75

38.10

44.45

50.80

63.50

76.20

25.40

31.75

38.10

44.45

50.80

63.50

76.20

25.40

31.75

38.10

44.45

50.80

63.50

76.20

15.88

19.05

22.23

25.40

28.58

39.68

47.63

15.88

19.05

22.23

25.40

28.58

39.68

47.63

15.88

19.05

22.23

25.40

28.58

39.68

47.63

15.88

19.05

25.40

25.40

31.75

38.10

47.63

15.88

19.05

25.40

25.40

31.75

38.10

47.63

15.88

19.05

25.40

25.40

31.75

38.10

47.63

4.0

4.8

5.6

6.4

7.15

9.5

12.7

4.0

4.8

5.6

6.4

7.15

9.5

12.7

4.0

4.8

5.6

6.4

7.15

9.5

12.7

24.1

30.1

36.2

42.2

48.2

60.3

72.4

24.1

30.1

36.2

42.2

48.2

60.3

72.4

24.1

30.1

36.2

42.2

48.2

60.3

72.4

20.8

26.0

31.2

36.4

41.6

52.0

62.4

20.8

26.0

31.2

36.4

41.6

52.0

62.4

20.8

26.0

31.2

36.4

41.6

52.0

62.4

7.94

9.54

11.11

12.71

14.29

19.85

23.81

7.94

9.54

11.11

12.71

14.29

19.85

23.81

7.94

9.54

11.11

12.71

14.29

19.85

23.81

18.3

21.8

26.95

28.9

33.95

42.9

54.8

34.60

41.40

51.40

54.95

64.90

82.05

105.30

50.95

61.00

75.85

81.15

95.95

121.25

156.05

20.9

24.5

30.55

33.1

38.45

48.1

62.3

37.20

44.10

55.00

59.50

69.60

87.30

112.90

53.55

63.60

79.55

85.25

100.45

126.55

163.55

—

—

—

—

—

—

—

32.6

39.1

48.9

52.2

61.9

78.3

101.2

32.6

39.1

48.9

52.2

61.9

78.3

101.2

98.1 (10,000)

145 (14,800)

196 (20,000)

255 (26,000)

324 (33,000)

598 (61,000)

922 (94,000)

196 (20,000)

290 (29,600)

392 (40,000)

510 (52,000)

647 (66,000)

1,200 (122,000)

1,840 (188,000)

294 (30,000)

435 (44,400)

588 (60,000)

765 (78,000)

971 (99,000)

1,790 (183,000)

2,770 (282,000)

20.6 (2,100)

32.4 (3,300)

42.2 (4,300)

56.9 (5,800)

73.5 (7,500)

100 (10,200)

139 (14,200)

35.0 (3,570)

55.0 (5,610)

71.7 (7,310)

96.7 (9,860)

125 (12,750)

170 (17,340)

237 (24,140)

51.5 (5,250)

80.9 (8,250)

105 (10,750)

142 (14,500)

184 (18,750)

250 (25,500)

348 (35,500)

3.29

4.88

6.94

8.88

11.72

19.68

30.47

6.52

9.51

13.51

17.38

22.97

38.48

59.77

9.75

14.14

20.09

25.88

34.22

57.29

89.09

Notes: 1. Offset links are not available. 2. Riveted type chain will be provided unless otherwise specified. Roll pin type chain will be provided upon request. 3. Semi press-fit type connecting links will be supplied.

(Dimensions in mm)


PlatesW

Single-Strand Double-Strand Triple-Strand

49

ULTRA SUPER SERIES

TSUBAKIChain No.

Max.Allowable

LoadkN(kgf)

Approx.Mass

kg/m

Ave.Tensile

StrengthkN(kgf)

Pitch

P

RollerDiam.

R

Side Plates

T H D L1 L2

US100

US120

US140

US160

US200

US240

Pins

31.75

38.10

44.45

50.80

63.50

76.20

19.05

22.23

25.40

28.58

39.68

47.63

19.05

25.40

25.40

31.75

38.10

47.63

4.8

5.6

6.4

7.1

9.5

12.7

30.1

36.2

42.2

48.2

60.3

72.4

10.32

12.28

13.97

15.62

20.41

24.73

22.35

27.55

29.50

34.50

42.95

54.80

25.35

31.55

34.20

40.20

50.95

64.90

172 (17,500)

245 (25,000)

314 (32,000)

392 (40,000)

667 (68,000)

981 (100,000)

39.2 (4,000)

53.9 (5,500)

63.7 (6,500)

85.3 (8,700)

108 (11,000)

151 (15,400)

5.07

7.22

9.24

12.19

20.47

31.69

Notes: 1. RS Standard Sprockets can be used if the sprocket teeth have been hardened and the sprocket is not a cast iron type. 2. Chain should be lubricated using: a) drip method b) oil bath c) lubrication pump 3. Offset links are not available. 4. Riveted type chain will be supplied unless otherwise specified. 5. Chain must be used under 50 m/min speed. 6. Multi-strand chains are not available.

(Dimensions in mm)


PlatesW

50


CHAI

N

Form of RO3180N Form of other sizes

� For large-size powerful drives and lifting applicationsPreeminent shock resistance through the use of optimal steel and heat treat-ment.

� AttentionSince there is no compatibility with the previous chains, it is not possible to at-tach new chain with old chain. Therefore, please make sure to change the wholechain upon replacement. However, there is compatibility regarding the sprockets.

, has been stamped on the link plates of the new specification, in order to distinguish between the old and

new specifications. The letters “USA” have not been stamped on the old specification.

“TSUBAKI”USA

RO Heavy Duty Chains

Link Plate Pin

Chain No.

RO1613AKN

RO3180N

RO25HN

RO568N

BO2512N

RO3N

RO3HN

RO3125N

RO1616N

RO1338N

RO1644AN

RO1664AN

RO4HFN

RO4N

RO1245N

RO1343N

RO1345N

RO635N

RO1602AAN

RO1605AKN

Standard

ANSI

ANSI

ANSI

ANSI

ANSI

ANSI

Pitch

P50.80

57.15

63.50

77.90

77.90

78.11

78.11

79.38

88.90

92.08

95.25

101.60

103.20

103.20

103.45

103.89

103.89

114.30

127.00

127.00

Min. Tensile Strength

kN(kgf)280 (28600)

324 (33000)

338 (34500)

447 (45600)

447 (45600)

236 (24100)

338 (34500)

459 (46800)

559 (57000)

722 (73600)

722 (73600)

1110(113000)

731 (74500)

559 (57000)

722 (73600)

902 (92000)

902 (92000)

964 (98300)

1330(136000)

1560(159000)

Approx.Mass

kg/m11.3

15.5

13.7

17.9

17.2

10.5

14.3

18.8

23.9

30.0

29.3

44.5

31.1

23.9

27.2

31.9

32.9

38.3

52.3

54.3

No. ofLinks/Unit

57

65

66

65

67

65

65

69

50

50

50

50

50

50

51

50

50

53

51

50

RollerDiam.

R28.58

35.70

31.75

41.28

*31.75

31.75

31.75

41.28

44.45

53.98

44.45

57.15

44.45

44.45

45.09

47.70

50.80

57.15

63.5

63.5

InnerWidth

W32.1

36.7

38.1

39.7

39.7

38.1

38.1

39.7

38.1

42.4

38.1

55.9

49.2

49.2

49.2

49.2

49.2

52.4

69.9

69.9

ThicknessT

7.9

7.1

9.5

9.5

9.5

7.9

9.5

9.5

12.7

14.3

14.3

14.3

15.9

12.7

14.3

14.3

14.3

14.3

15.9

19.1

HeightH

41.3

54.0

41.3

57.2

57.2

38.1

44.5

57.2

57.2

60.3

60.3

85.7

60.3

57.2

60.3

69.9

69.9

76.2

88.9

88.9

Diam.D

15.04

17.45

15.88

19.05

19.05

15.88

16.46

22.23

22.23

23.88

23.88

30.16

23.88

22.23

23.88

27.91

27.91

27.91

31.65

34.93

L2

42.9

44.1

49.6

54.0

54.0

46.9

49.8

54.0

60.3

66.4

64.3

74.7

73.0

65.1

69.9

71.4

71.4

73.0

84.9

91.3

L1

36.5

37.5

42.5

43.7

43.7

39.7

42.7

44.4

50.0

56.9

54.7

63.6

63.5

55.6

60.3

60.3

60.3

61.9

73.8

80.2

L1 + L2

79.4

81.5

92.1

97.7

97.7

86.6

92.5

98.4

110.3

123.3

119.0

138.3

136.5

120.7

130.2

131.7

131.7

134.9

158.7

171.5

ANSI (American National Standards Institution)Note: 1. Those marked with * are rollerless. The figure shown is the bush diameter.

2. All types have a stipulated length and are stock items.

51


1.801.952.102.252.41

2.562.712.873.023.18

3.493.814.444.765.25

6.06

25


Lubrication System

A B C


1314151617

1819202122

2426303235

40


3.363.643.924.204.49

4.775.065.355.645.93

6.517.108.298.899.79

11.3

6.276.797.327.858.38

8.919.459.9810.511.1

12.213.315.516.618.3

21.1

11.712.713.714.615.6

16.617.618.619.620.7

22.724.728.931.034.1

39.4

16.918.319.721.122.5

24.025.426.828.329.7

32.735.641.644.649.1

56.7

21.823.725.527.329.2

31.032.934.836.738.5

42.346.253.957.863.6

73.5

26.728.931.233.435.7

37.940.242.544.847.1

51.856.465.970.677.8

89.8

31.534.136.739.442.0

44.747.450.152.855.5

61.066.577.683.291.6

106

32.336.140.044.148.3

51.354.457.560.663.8

70.176.489.195.6105

122

26.429.532.736.139.5

43.046.750.454.358.2

66.374.892.7102117

137

22.124.727.430.233.1

36.139.142.245.548.8

55.662.777.785.697.9

119

36.138.841.6

47.453.566.373.183.6

102

50 100 200 300 400 500 600 700 800 900 1000

1.451.571.691.811.93

2.062.182.302.432.55

2.813.063.573.834.22

4.87


Lubrication System

A B C


1314151617

1819202122

2426303235

40

� SUPER 100

3.303.583.854.134.41

4.694.975.265.545.83

6.406.988.148.739.62

11.1

6.166.677.197.718.23

8.759.289.8110.310.9

11.913.015.216.318.0

20.7

11.512.513.414.415.4

16.317.318.319.320.3

22.324.328.430.433.5

38.7

16.617.919.320.722.1

23.524.926.427.829.2

32.135.040.943.848.3

55.7

21.523.225.026.828.7

30.532.334.236.037.9

41.645.352.956.762.5

72.2

30.933.536.138.741.3

43.946.649.251.954.5

59.965.376.281.790.0

104

40.043.446.750.153.5

56.960.363.767.270.7

77.684.698.8106117

135

48.953.057.161.265.4

69.573.777.982.186.4

94.9103121129143

165

48.754.460.366.472.8

79.386.091.896.8102

112122142153168

194

38.643.247.952.757.7

62.968.273.779.385.0

96.9109135149170

208

39.143.147.2

51.555.860.364.969.6

79.389.4110122139

170

102117

143

10 25 50 100 150 200 300 400 500 600 700 800 900

MAXIMUM KILOWATT RATINGS� SUPER 80




Factor23456

1.72.53.33.94.6

Lubricating Methods

A

B

C

Drip lubrication



52


CHAI

N

2.452.652.863.063.27

3.483.693.904.114.32

4.745.176.046.477.13

8.24


Lubrication System

A B C


1314151617

1819202122

2426303235

40


10

5.586.056.516.987.46

7.938.418.899.379.85

10.811.813.814.816.3

18.8

10.411.312.213.013.9

14.815.716.617.518.4

20.222.025.727.630.4

35.1

19.421.122.724.326.0

27.629.331.032.634.3

37.741.148.051.456.6

65.4

28.030.332.735.037.4

39.842.244.647.049.4

54.359.269.174.181.6

94.2

36.339.342.345.448.5

51.554.657.860.964.0

70.376.789.596.0106

122

52.256.661.065.469.8

74.278.783.287.792.2

101110129138152

176

60.065.070.075.180.2

85.390.495.6101106

116127148159175

202

67.773.379.084.790.4

96.2102108114119

131143167179197

228

75.381.587.894.2101

107113120126133

146159186199219

253

74.082.791.7101110

118125132139146

160175204219241

279

56.362.969.876.984.2

91.799.5107115124

141159197217248

304

66.8

72.878.985.391.798.4

112126156172197

241 197

25 50 100 150 200 300 350 400 450 500 600 700 800

3.503.794.084.384.68

4.975.275.575.876.18

6.787.408.639.2610.2

11.8


Lubrication System

A B C


1314151617

1819202122

2426303235

40

� SUPER 120

10

7.988.659.329.9910.7

11.312.012.713.414.1

15.516.919.721.123.3

26.9

25

14.916.117.418.619.9

21.222.423.725.026.3

28.931.536.839.443.4

50.1

50

27.830.132.434.837.1

39.541.944.346.749.1

53.958.868.673.581.0

93.6

100

40.043.446.750.153.5

56.960.363.867.270.7

77.684.698.8106117

135

150

51.956.260.564.969.3

73.778.182.687.191.6

101110128137151

175

200

63.468.774.079.384.7

90.195.5101106112

123134156168185

213

250

74.780.987.293.599.8

106113119125132

145158184198218

252

300

85.893.0100107115

122129137144151

166181212227250

289

350

96.8105113121129

138146154162171

188205239256282

326

400

98.1109121134144

153162171181190

209227266285314

362

450

83.793.6103114125

136147160172184

210237292313345

398

500

72.681.190.099.1108

118128138149160

182205254280320

392

550

95.2

103112121131140

160180223246281

344

600

198218249

305

650

223

273

700





Factor23456

1.72.53.33.94.6

Lubricating Methods

A

B

C

Drip lubrication



53

5.265.706.146.587.03

7.487.938.388.839.29

10.211.113.013.915.3

17.7


Lubrication System

A B C


1314151617

1819202122

2426303235

40


10

7.588.218.859.4810.1

10.811.412.112.713.4

14.716.018.720.122.1

25.5

15

12.013.014.015.016.0

17.118.119.120.221.2

23.325.429.631.835.0

40.4

25

18.319.921.422.924.5

26.827.629.230.832.3

35.538.745.248.553.4

61.7

40

22.424.326.128.029.9

31.833.835.737.639.5

43.447.455.359.365.3

75.4

50

34.237.039.942.845.7

48.651.554.557.460.4

66.372.384.490.599.6

115

80

41.845.348.852.355.8

59.463.066.670.273.8

81.088.4103111122

141

100

60.265.270.375.380.4

85.690.795.9101106

117127149159175

203

150

78.084.591.097.6104

111118124131138

151165192206227

263

200

95.3103111119127

135144152160168

185202235252278

321

250

112122131141150

160169179189198

218238277297327

378

300

129140151162172

183194206217228

250273318341376

434

350

130145161178194

207219232244257

282308359385424

490

400

109122135149163

177192208224240

273308382421472

545

450

93.2104115127139

151164177191205

233263326360411

503

500

142154165177

202228283312356

436

550

4.865.275.686.096.50

6.917.337.758.168.59

9.4310.312.012.914.2

16.4


Lubrication System

A B C


1314151617

1819202122

2426303235

40

� SUPER 160

5

9.089.8310.611.412.1

12.913.714.515.216.0

17.619.222.424.026.5

30.6

10

13.114.215.316.417.5

18.619.720.822.023.1

25.427.632.334.638.1

44.0

15

16.918.419.821.222.7

24.125.527.028.429.9

32.835.841.844.849.4

57.0

20

20.722.424.225.927.7

29.431.233.034.836.6

40.243.851.154.860.3

69.7

25

24.426.428.530.532.6

34.736.838.941.043.1

47.351.660.264.571.1

82.1

30

31.634.236.939.642.2

44.947.650.353.155.8

61.366.878.083.692.1

106

40

38.641.945.148.451.6

54.958.261.564.968.2

74.981.795.3102113

130

50

45.549.353.157.060.8

64.768.672.576.480.4

88.396.3112120133

153

60

59.063.968.873.878.8

83.888.993.999.0104

114125146156172

199

80

72.178.184.290.296.3

102109115121127

140152178191210

243

100

104113121130139

148156165174189

201220256275303

350

150

135146157168180

191203214226237

261284332356270

294

200

164178192206220

234248262276290

319

250





Factor23456

1.72.53.33.94.6

Lubricating Methods

A

B

C

Drip lubrication



54


CHAI

N

8.048.719.3810.110.7

11.412.112.813.514.2

15.617.019.821.323.4

27.1


Lubrication System

A B C


1314151617

1819202122

2426303235

40

5

15.016.317.518.820.0

21.322.623.925.226.5

29.131.737.039.743.7

50.5

10

21.623.425.227.028.9

30.732.534.436.338.1

41.945.753.357.163.0

72.7

15

28.030.332.735.037.4

39.842.244.647.049.4

54.359.269.174.081.6

94.2

20

34.237.139.942.845.7

48.651.554.557.460.4

66.372.384.490.599.7

115

25

40.343.747.150.453.9

57.360.764.267.771.2

78.285.299.5107117

136

30

52.256.661.065.469.8

74.278.783.287.792.2

101110129138152

176

40

63.869.274.579.985.3

90.796.2102107113

124135158169186

215

50

75.281.587.894.1101

107113120126133

146159186199219

253

60

97.5106114122130

138147155164172

189206240258284

328

80

119129139149159

169179190200210

231252294315347

259

100

146158170182195

207219232244257

282308215225

125

112118126133139

146153159165

150





Factor23456

1.72.53.33.94.6

Lubricating Methods

A

B

C

Drip lubrication



55

� NP Nickel-Plated Roller Chain *1

RS Roller Chain that has been plated with Nickel. NP chain has an attractive appear-ance and light corrosion resistance, so it is suitable for outdoor conditions exposed towater. There is a 15% reduction in Max. Allowable Load compared to RS Roller Chain,so please take care when making your chain selection. Working temperature range: –10°C ~ +60°C (+14°F ~ +140°F).

� WP Roller Chain *1

RS Roller Chain that has undergone a special surface treatment. (Clips are SUS301)This chain is more corrosion-resistant in wet environments than NP chain, and is alsosuitable for use in environments exposed to sea-water. The kilowatt ratings are thesame as RS Roller chain, however, it cannot be used in temperatures below –30°C(–22°F) and above +150°C (+302°F).

� DP Roller Chain (Patent Pending) *1

RS Roller Chain that has been galvanized and specially treated providing a doubleplated effect. It has superior salt-water resistance, weather resistance and other syn-thetic corrosion resistance and is extremely durable. Furthermore, this chain usesgroundbreaking surface treatment technology and the non-use of harmful chromiummakes this chain environmentally friendly. Working temperature range: –10°C ~ +60°C (+14°F ~ +140°F).

� SUS Stainless Steel Roller Chain Roller Chain composed of SUS304 (Clips are SUS301). This chain is more corrosion-resistant than RS Roller Chain, NP Roller Chain, and WP Roller Chain. It can be usedin special environments such as corrosive conditions underwater and in acids/alkalis.It can also be used in high and low temperatures (–20°C ~ +400°C/–4°F ~ +752°F).Please refer to the chain selection pages for more details on corrosion resistance.There is almost no magnetism regarding SUS304 stainless steel itself. However, theremay be slight magnetism under cold working processes.

� LS Stainless Steel Roller Chain PAT#2783750LS Chain is a roller chain in which an engineered plastic sleeve (black) has been in-serted between the pin and bushing of Stainless Steel Roller Chain (SS) (SUS304).There are two types of roller materials, SUS304 and engineering plastic (white).Corrosion resistance is almost identical to that of Stainless Steel Roller Chain (SS),however, care needs to be taken with some inorganic acids and alkalis. Please referto the chain selection pages for more details on corrosion resistance.

Working temperature range: –20°C ~ +100°C (–4°F ~ +212°F) (SUS304 rollers)–20°C ~ +80°C (–4°F ~ +176°F) (plastic rollers)

Long Life

Life comparison with SS specification

Completely Dry (No Lube)……chain wear life improved by more than 4 times

(–20°C ~ +100°C/–4°F ~ +212°F)

Realization of quiet drive and conveyance due to absence of metal on metal contact

• 7 ~ 10 dB reduction in noise compared to stainless steel rollers

• Reduction in screeching noise from direct metal contact

Reduction in mass compared to stainless steel rollers (Approx. 15%)

� Engineering Plastic Roller

0Important notes on disassembling/connecting LS Roller Chain.

……increase in roller wear resistance, and chain wear life improved by more than 10 times

(–20°C ~ + 80°C/–4°F ~ +176°F)……chain wear life improved by more than 4 times

(–10°C ~ +100°C/+14°F ~ +212°F)Exposure to water / Underwater

Low Noise

Lightweight

Stainless steel roller

Engineering plastic roller

Stainless steel roller

There is an engineering plastic sleeve (black pipe) between the pin and bushing, so be careful not to lose it when disassembling the chain. Also make sure to replace the engineering plastic sleeve between the pin and bushing before connecting the chain.

Operating Time

(SS) Stainless Steel Roller Chain

(LS) Stainless Steel Roller ChainWea

r E

long

atio

n

NP

WP

DP

SS

LS

Corrosion-Resistant Roller Chain

0Safety Precautions

*1 Do not use Nickel-Plated Roller Chain (NP), WP RollerChain, or DP Roller Chain under any circumstances wherethe chain comes into direct contact with food productsand/or where coating flakes or wear dust may mix with andcontaminate such products. Even in non-food applications,if the chain is used in an environment where coating flakesor wear dust may pose a problem, please install a suitablecover or consult with Tsubaki for chain selection advice.

56


CHAI

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� NS Stainless Steel Roller ChainThis is a roller chain composed of SUS316 stainless steel (only RS25NS clips areSUS301). This chain is suitable when corrosion resistance greater than Stainless SteelRoller Chain (SS) is required. There are no magnetic parts besides the clip. Please re-fer to the chain selection pages for more details on corrosion resistance.

� AS Powerful Stainless Steel Roller ChainThis is a roller chain which uses heat-treated precipitation hardened stainless steel(SUS600) for the pins and rollers and SUS304 stainless steel for the link plates andbushings (Clips are SUS301). Max. Allowable Load is 1.5 times that of Stainless SteelChain (SS) and corrosion resistance is slightly lower. This chain is suitable where cor-rosion and heat resistance (–20°C ~ +400°C/–4°F ~ +752°F) is required, and for pow-erful drives where chain smaller than RS Stainless Steel Roller Chain (SS) is preferred.Please refer to the chain selection pages for more details on corrosion resistance.Magnetism exists due to the use of SUS600.

� PC, PC-SY Poly Steel Chain®

PC:SUS304 is used for the pins and outer link plates (Clips are SUS301), and engi-neering plastic (white) is used for the inner link. It is a lube-free, low noise (5 dBlower than RS Roller Chain), and lightweight (50% lighter than RS Roller Chain)chain. Working temperature range: –20°C ~ +80°C (–4°F ~ +176°F). Please referto the chain selection pages for more details on corrosion resistance.

PC-SY (Super Chemical-Resistant): This chain uses titanium for the pins and outer linkplates and engineering plastic (off-white) for the inner link. It is suitable when thecorrosion resistance of Poly Steel Chain (PC) is lacking. Working temperaturerange: –20°C ~ +80°C (–4°F ~ +176°F). Please refer to the chain selection pagesfor more details on corrosion resistance.In addition, Max. Allowable Load is 60% that of Poly Steel Chain (PC).

� TI Roller ChainThis chain is composed of titanium, making it non-magnetic and highly corrosion re-sistant. Please refer to the chain selection pages for more details on corrosion resis-tance.

� KT Roller Chain (Cold-Resistant)This chain can be used in colder temperatures than RS Roller Chain. Working temper-ature range: –40°C ~ +60°C (–40°F ~ +14°F). This chain is suitable when the samekilowatt ratings as RS Roller Chain are required.

NS

AS

PC

57

Connecting LinkRS25NP ~ RS60NP: Clip-typeRS80NP ~ RS120NP: Cotter Pin-type (double riveted)Offset LinkOffset links for RS25NP are two-pitch offset links.

0Safety Precautions

Refrain from use where the chain comes into direct contact withfood products and/or where chain flakes or wear dust may mixwith and contaminate such products. Even in non-food applica-tions, if the chain is used in an environment where chain flakesor wear dust may pose a problem, please install a suitable coveror consult with Tsubaki for chain selection advice.

NP Nickel-Plated Roller Chain

Chain No.

Link Plate Pin

RS 25NP

RS 35NP

RS 40NP

RS 50NP

RS 60NP

RS 80NP

RS100NP

RS120NP

Pitch

P 6.35

9.525

12.70

15.875

19.05

25.40

31.75

38.10

Main PinType

Riveted

Riveted

Riveted

Riveted

Riveted

Riveted

Cottered

Cottered

RollerDiam.

R*3.30

*5.08

7.92

10.16

11.91

15.88

19.05

22.23

Width b/wInner

Link PlatesW3.18

4.78

7.95

9.53

12.70

15.88

19.05

25.40

ThicknessT

0.75

1.25

1.5

2.0

2.4

3.2

4.0

4.8

HeightH

5.84

9.0

12.0

15.0

18.1

24.1

30.1

36.2

Heighth

5.05

7.8

10.4

13.0

15.6

20.8

26.0

31.2

Diam.D

2.31

3.59

3.97

5.09

5.96

7.94

9.54

11.11

Offset Pin Length L

7.6

13.5

18.0

22.5

28.2

36.0

44.4

45.4

L1

3.8

5.85

8.25

10.3

12.85

16.25

19.75

24.9

L1 + L2

8.6

12.7

18.2

22.3

27.6

35.5

42.6

53.8

L2

4.8

6.85

9.95

12.0

14.75

19.25

22.85

28.9

Chain No.

RS 25NP

RS 35NP

RS 40NP

RS 50NP

RS 60NP

RS 80NP

RS100NP

RS120NP

Min. TensileStrength

kN(kgf)4.12 (420)

9.81 (1000)

17.7 (1800)

28.4 (2900)

40.2 (4100)

71.6 (7300)

107 (10900)

148 (15100)

Ave. TensileStrength

kN(kgf)4.7 (480)

11.3 (1150)

19.1 (1950)

31.4 (3200)

44.1 (4500)

78.5 (8000)

118 (12000)

167 (17000)

Max. AllowableLoad

kN(kgf)0.64 (65)

1.86 (190)

3.04 (310)

5.39 (550)

7.26 (740)

12.7 (1300)

19.1 (1950)

25.5 (2600)

Delivery

Stock Items

Stock Items

Stock Items

Stock Items

Stock Items

Stock Items

Stock Items

MTO

Approx. Mass

kg/m0.14

0.33

0.64

1.04

1.53

2.66

3.99

5.93

No. ofLinks/Unit

160

320

240

192

160

120

96

80

Those marked with * are rollerless. The figure shown is the bush diameter.Note: When one-pitch offset links (OL) are used, the Max. Allowable Load becomes 65% of the values shown above.

58


CHAI

N

WP Roller Chain

Chain No.

Pitch

P

Link Plate Pin

ThicknessT

HeightH

Heighth

Diam.D

Offset PinLength LL1 L2

RS 40WP

RS 50WP

RS 60WP

RS 80WP

RS100WP

12.70

15.875

19.05

25.40

31.75

RollerDiam.

R7.92

10.16

11.91

15.88

19.05


PlatesW7.95

9.53

12.70

15.88

19.05

1.5

2.0

2.4

3.2

4.0

12.0

15.0

18.1

24.1

30.1

10.4

13.0

15.6

20.8

26.0

3.97

5.09

5.96

7.94

9.54

8.25

10.3

12.85

16.25

19.75

L1 + L2

18.2

22.3

27.6

35.5

42.6

9.95

12.0

14.75

19.25

22.85

18.0

22.5

28.2

36.0

44.4

Chain No.


kN(kgf)RS 40WP

RS 50WP

RS 60WP

RS 80WP

RS100WP

17.7 (1800)

28.4 (2900)

40.2 (4100)

71.6 (7300)

107.0(10900)


kN(kgf)

Max. AllowableLoad

kN(kgf)

Approx.Mass

kg/m

No. of Links/Unit Delivery

19.1 (1950)

31.4 (3200)

44.1 (4500)

78.5 (8000)

118.0(12000)

3.63(370)

6.37(650)

8.83(900)

14.7(1500)

22.6(2300)

0.64

1.04

1.53

2.66

3.99

240

192

160

120

96

Stock

Items

0Safety Precautions

Please refer to “Safety Precautions” onPage 57.

Connecting links for #80 and #100 are cotter pin-type.The main chain pin for #100 is also cotter pin-type.

DP Roller Chain (Patent Pending)

Chain No.

Pitch

P

Link Plate Pin

ThicknessT

HeightH

Heighth

Diam.D


RS 35DP

RS 40DP

RS 50DP

RS 60DP

RS 80DP

RS100DP

9.525

12.70

15.875

19.05

25.40

31.75

Roller Diam.(Bushing

Diam.)R

(5.08)

7.92

10.16

11.91

15.88

19.05


PlatesW4.78

7.95

9.53

12.70

15.88

19.05

1.25

1.5

2.0

2.4

3.2

4.0

9.0

12.0

15.0

18.1

24.1

30.1

7.8

10.4

13.0

15.6

20.8

26.0

3.59

3.97

5.09

5.96

7.94

9.54

5.85

8.25

10.3

12.85

16.25

19.75

L1 + L2

12.7

18.2

22.3

27.6

35.5

42.6

6.85

9.95

12.0

14.75

19.25

22.85

13.5

18.0

22.5

28.2

38.7

45.8

Chain No.


kN(kgf)RS 35DP

RS 40DP

RS 50DP

RS 60DP

RS 80DP

RS100DP

9.81(1000)

17.7 (1800)

28.4 (2900)

40.2 (4100)

71.6 (7300)

107 (10900)


kN(kgf)

Max. AllowableLoad

kN(kgf)

Approx.Mass

kg/m


11.3(1150)

19.1(1950)

31.4(3200)

44.1(4500)

78.5(8000)

118 (12000)

2.16(220)

3.63(370)

6.37(650)

8.83(900)

14.7(1500)

22.6(2300)

0.33

0.64

1.04

1.53

2.66

3.99

320

240

192

160

120

96

Stock

Items

0Safety Precautions

Please refer to “Safety Precautions” onPage 57.

wT

L 2L 1

T

D R

Hh

P P

LL

RS35DP ~ RS60DP RS80DP · RS100DP

Connecting links for #80 and #100 are cotter pin-type.Rivet-type pins are standard for all sizes of main chain.

Note: 1. When 1-pitch offset links (OL) are used, the kW ratings become 65% of the values shown above.2. RS35DP is a bushed chain. There are no rollers.

59

SUS Stainless Steel Roller Chain

Note: 1. Those marked with * are rollerless. The figure shown is the bushing diameter.2. Multi-strand stainless steel chain and sprockets are made-to-order items.

Caution: The link plate thickness of large size chain greater than RS120SS differs to that of RS Roller Chain. 3. The rivet-type for single-strand and multi-strand chain greater than RS80SS is quad-rivet.4. Delivery for RS100SS, 120SS, 140SS and 160SS single-strand is MTO.

Single-Strand

Double-Strand

The OL of RS25SS is 2-pitch type.RS25SS

Chain No.

Pitch

P

Link Plate Pin

ThicknessT

HeightH

Heighth

Diam.D


RS 11SS

RS 25SS

RS 35SS

RS 40SS

RS 40SS-2

RS 50SS

RS 50SS-2

RS 60SS

RS 60SS-2

RS 80SS

RS 80SS-2

RS100SS

RS100SS-2

RS120SS

RS120SS-2

RS140SS

RS140SS-2

RS160SS

RS160SS-2

RS180SS

RS200SS

RS240SS

3.7465

6.35

9.525

12.70

15.875

19.05

25.40

31.75

38.10

44.45

50.80

57.15

63.50

76.20

RollerDiam.

R

TransversePitch

C *2.285

*3.30

*5.08

7.92

10.16

11.91

15.88

19.05

22.23

25.40

28.58

35.71

39.68

47.63


PlatesW1.83

3.18

4.78

7.95

9.53

12.70

15.88

19.05

25.40

25.40

31.75

35.72

38.10

47.63

0.38

0.75

1.25

1.5

2.0

2.4

3.2

4.0

5.0

6.0

7.0

7.15

8.0

9.5

3.5

5.84

9.0

12.0

15.0

18.1

24.1

30.1

36.2

42.2

48.2

52.3

60.3

72.4

3.5

5.05

7.8

10.4

13.0

15.6

20.8

26.0

31.2

36.4

41.6

43.4

52.0

62.4

1.57

2.31

3.59

3.97

5.09

5.96

7.94

9.54

11.11

12.71

14.29

17.46

19.85

23.81

2.275

3.8

5.85

8.25

15.45

10.3

19.35

12.85

24.25

16.25

30.90

19.75

37.70

25.75

48.35

28.15

52.70

33.55

62.75

36.05

39.5

47.5

L1 + L2

5.44

8.6

12.7

18.2

32.6

22.3

40.5

27.6

50.0

35.5

64.8

42.6

78.5

55.55

100.6

61.1

110.0

72.1

130.1

78.5

84.8

105.2

3.165

4.8

6.85

9.95

17.15

12.0

21.15

14.75

26.25

19.25

33.90

22.85

40.80

29.80

52.25

32.95

57.30

38.55

63.35

42.45

45.3

57.7

—

—

—

—

14.4

—

18.1

—

22.8

—

29.3

—

35.8

—

45.4

—

48.9

—

58.5

—

—

—

0.05 (5)

0.12 (12)

0.26 (27)

0.44 (45)

0.88 (90)

0.69 (70)

1.37 (140)

1.03 (105)

2.06 (210)

1.77 (180)

3.53 (360)

2.55 (260)

5.10 (520)

3.82 (390)

7.65 (780)

4.61 (470)

9.22 (940)

6.37 (650)

12.7 (1300)

8.55 (872)

10.8 (1100)

15.7 (1600)

0.052

0.14

0.33

0.64

1.27

1.04

2.07

1.53

3.04

2.66

5.30

4.01

7.99

6.13

12.22

7.91

15.77

10.86

21.66

13.45

16.54

24.50

134

160

320

240

192

160

120

96

80

68

60

54

48

40

Fine

Prin

t typ

es: P

leas

e co

nsul

t Tsu

bak

i

Bo

ld P

rint

typ

es: S

tock

item

s

—

—

14.7

18.6

33.5

23.9

41.8

29.4

52.6

39.0

68.05

46.5

81.6

59.7

104.9

66.2

114.6

77.3

134.7

84.9

90.8

112.6

Max. AllowableLoad

kN(kgf)

Approx.Mass

kg/m

No. of Links/

UnitDelivery

Connecting LinkRS11SS ~ RS60SS: Clip-typeRS80SS ~ RS240SS: Cotter Pin-type

60


CHAI

N

LS Stainless Steel Roller ChainConnecting LinkRS40LS (RS40LS-P) ~ RS60LS (RS60LS-P): Clip-typeRS80LS (RS80LS-P): Cotter Pin-type

Connecting LinkRS25NS: Clip-typeRS35NS ~ RS80NS: Cotter Pin-type

Chain No.Pitch

P

Link Plate Pin

RS40LS

RS50LS

RS60LS

RS80LS

RS40LS-P

RS50LS-P

RS60LS-P

RS60LS-P

12.70

15.875

19.05

25.40

RollerDiam.

R7.92

10.16

11.91

15.88


PlatesW7.95

9.53

12.70

15.88

1.5

2.0

2.4

3.2

12.0

15.0

18.1

24.1

10.4

13.0

15.6

20.8

3.97

5.09

5.96

7.94

8.25

10.3

12.85

16.25

T H h D L1 L2L1 + L2

18.2

22.3

27.6

35.5

9.95

12.0

14.75

19.25

Offset PinLength L

18.6

23.9

29.4

39.0

Steel Roller Engineering Plastic Roller

Chain No.

Pitch

P

Link Plate Pin

ThicknessT

HeightH

Heighth

Diam.D


RS25NS

RS35NS

RS40NS

RS50NS

RS60NS

RS80NS

6.35

9.525

12.70

15.875

19.05

25.40

RollerDiam.

R*3.30

*5.08

7.92

10.16

11.91

15.88


PlatesW3.18

4.78

7.95

9.53

12.70

15.88

0.75

1.25

1.5

2.0

2.4

3.2

5.85

9.0

12.0

15.0

18.1

24.1

5.05

7.8

10.4

13.0

15.6

20.8

2.31

3.59

3.97

5.09

5.96

7.94

3.8

5.85

8.25

10.3

12.85

16.25

L1 + L2

8.6

13.0

17.9

22.2

28.1

35.7

4.8

7.15

9.65

11.9

15.25

19.45

(7.6)

14.7

18.6

23.9

29.4

39.0

Chain No.

Max. AllowableLoad

kN(kgf)RS25NS

RS35NS

RS40NS

RS50NS

RS60NS

RS80NS

0.12 (12)

0.26 (27)

0.44 (45)

0.69 (70)

1.03(105)

1.77(180)

Approx.Mass

kg/m


0.14

0.33

0.64

1.04

1.53

2.66

160

320

240

192

160

120

PleaseconsultTsubaki

Chain No.

RS40LS

RS50LS

RS60LS

RS80LS

RS40LS-P

RS50LS-P

RS60LS-P

RS80LS-P

0.44 (45)

0.69 (70)

1.03(105)

1.77(180)

0.23(23)

0.34(35)

0.54(55)

—

0.64

1.04

1.53

2.66

0.50

0.88

1.27

—

240

192

160

120

Chain with stainless steel rollers are standard length stock items.

Chain with plastic rollers are made-to-order items.

Stainless Steel Roller Plastic Roller

Max. Allowable LoadkN(kgf)


Approx. Masskg/m

No. of Links/

UnitDelivery


NS Stainless Steel Roller Chain

Note: 1. Those marked with * show the bushing diameter.2. Offset links for RS25NS are two-pitch offsets links only. The (7.6) indicates the dimension for it. (Offset Link pins are riveted,

and the form is the same as the RS25SS 2POL drawing shown at the top right of page 59.)

61

AS Powerful Series Stainless Steel Roller Chain

Connecting LinkRS40AS ~ RS60AS: Clip-typeRS80AS: Cotter Pin-type

Chain No.

Pitch

P

Link Plate Pin

ThicknessT

HeightH

Heighth

Diam.D


RS40AS

RS50AS

RS60AS

RS80AS

12.70

15.875

19.05

25.40

RollerDiam.

R7.92

10.16

11.91

15.88


PlatesW7.95

9.53

12.70

15.88

1.5

2.0

2.4

3.2

12.0

15.0

18.1

24.1

10.4

13.0

15.6

20.8

3.97

5.09

5.96

7.94

8.25

10.3

12.85

16.25

L1 + L2

18.2

22.3

27.6

35.7

9.95

12.0

14.75

19.45

18.6

23.9

29.4

39.0

Chain No.

Max. AllowableLoad

kN(kgf)RS40AS

RS50AS

RS60AS

RS80AS

0.69 (70)

1.03(105)

1.57(160)

2.65(270)

Approx.Mass

kg/m


0.64

1.04

1.53

2.66

240

192

160

120

StockItems

PC, PC-SY Poly Steel Chain®

• Make sure to check the chaintension again when replacingStainless Steel Chain withPoly Steel Chain.

• There are no offset links.

PC

Chain No.

Pitch

P

Link Plate Pin

ThicknessT1

HeightH

Heighth

Diam.D L1 L2

RF25PC

RF35PC

RF40PC

RF50PC

RF60PC

6.35

9.525

12.70

15.875

19.05

BushingDiam.

R3.30

5.08

7.92

10.16

11.91


PlatesW3.18

4.78

7.95

9.53

12.70

0.75

1.25

1.5

2.0

2.4

ThicknessT2

1.3

2.2

1.5

2.0

2.4

6.0

9.0

12.0

15.0

18.1

5.05

7.8

10.4

13.0

15.6

2.31

3.59

3.97

5.09

5.96

4.5

6.85

8.25

10.3

12.85

L1 + L2

10.0

14.7

18.2

22.3

27.6

5.5

7.85

9.95

12.0

14.75

0.08 (8)

0.18(18)

0.44(45)

0.69(70)

0.88(90)

0.095

0.22

0.39

0.58

0.82

160

320

240

192

160

StockItems

Max. AllowableLoad

kN(kgf)

Approx.Mass

kg/m

No. of Links/

UnitDelivery

Chain No.

Pitch

P

Link Plate Pin

ThicknessT1

HeightH

Heighth

Diam.D L1 L2

RF40PC-SY

RF50PC-SY

RF60PC-SY

12.70

15.875

19.05

BushingDiam.

R7.92

10.16

11.91


PlatesW7.95

9.53

12.70

1.5

2.0

2.4

ThicknessT2

1.5

2.0

2.4

12.0

15.0

18.1

10.4

13.0

15.6

3.97

5.09

5.96

8.25

10.3

12.85

L1 + L2

18.35

22.3

28.1

10.1

12.0

15.25

0.25(25)

0.39(40)

0.49(50)

0.39

0.58

0.82

240

192

160


Max. AllowableLoad

kN(kgf)

Approx.Mass

kg/m

No. of Links/

UnitDelivery

PC PC-SY

PC-SY

62


CHAI

N

TI Titanium Roller Chain

Chain No.

Pitch

P

Link Plate Pin

ThicknessT

HeightH

Heighth

Diam.D L1 L2

RS35TI

RS40TI

9.525

12.70

RollerDiam.

R*5.08

7.92


PlatesW

4.78

7.95

1.25

1.5

9.0

12.0

7.8

10.4

3.59

3.97

6.05

8.25

L1 + L2

13.2

18.35

7.15

10.1

0.26(27)

0.44(45)

0.19

0.37

320

240


Max. Allowable

LoadkN(kgf)

Approx.Mass

kg/m

No. of Links/

UnitDelivery

Note: Those marked with * show the bushing diameter.

KT Cold-Resistant Roller Chain

Chain No.

Pitch

P

Link Plate Pin

ThicknessT

HeightH

Heighth

Diam.D


RS 35KT

RS 40KT

RS 50KT

RS 60KT

RS 80KT

RS100KT

RS120KT

RS160KT

9.525

12.70

15.875

19.05

25.40

31.75

38.10

50.80

RollerDiam.

R*5.08

7.92

10.16

11.91

15.88

19.05

22.23

28.58


PlatesW4.78

7.95

9.53

12.70

15.88

19.05

25.40

31.75

1.25

1.5

2.0

2.4

3.2

4.0

4.8

6.4

9.0

12.0

15.0

18.1

24.1

30.1

36.2

48.2

7.8

10.4

13.0

15.6

20.8

26.0

31.2

41.6

3.59

3.97

5.09

5.96

7.94

9.54

11.11

14.29

5.85

8.25

10.3

12.85

16.25

19.75

24.9

31.85

L1 + L2

12.9

17.9

22.2

28.1

35.5

42.6

53.8

68.7

7.05

9.65

11.9

15.25

19.25

22.85

28.9

36.85

13.5

18.0

23.7

28.2

38.8

45.6

55.8

71.0

Chain No.


kN(kgf)RS 35KT

RS 40KT

RS 50KT

RS 60KT

RS 80KT

RS100KT

RS120KT

RS160KT

9.81(1000)

17.7 (1800)

28.4 (2900)

40.2 (4100)

71.6 (7300)

107 (10900)

148 (15100)

255 (26000)


kN(kgf)

Max. AllowableLoad

kN(kgf)

Approx.Mass

kg/m


11.3(1150)

19.1(1950)

31.4(3200)

44.1(4500)

78.5(8000)

118 (12000)

167 (17000)

279 (28500)

2.16(220)

3.63(370)

6.37(650)

8.83(900)

14.7(1500)

22.6(2300)

30.4(3100)

53.0(5400)

0.33

0.64

1.04

1.53

2.66

3.99

5.93

10.10

320

240

192

160

120

96

80

60


Note: 1. Those marked with * are rollerless. The figure shown is the bushing diameter.2. The shape of offset pins differs depending on size.3. When one-pitch offset links (OL) are used, the kW ratings become 65% of the values shown above.

63

� Low Noise Benefits• Reduction of noise generated by the machines and equipment in the workplace

helps improve the overall work environment.• The low noise function is added to the machinery and equipment used for man-

ufacturing, and contributes to upgrading and improving the overall image.• Belts were considered as a countermeasure for noise, however, there are many

limitations in terms of application, strength and overall cost. Taking these fac-tors into consideration, Low Noise Chain is the perfect countermeasure.

• Recommended for applications where silence is a major concern, such asstage lifts used in theaters.

� FeaturesLow NoiseCompared with Tsubaki’s standard RS Roller Chain (pre-lubricated), noise levelsof SN Roller Chain are 6-8 dB lower.

InterchangeabilityDimensionally interchangeable with Standard Roller Chain.* Note: As there are limits to the drive power of SN Roller Chain, please check the drive power charts on Pgs. 64 - 66.

SelectionPlease select by referring to the kW ratings chart on the following page orbased on the Slow Speed Selection method (when chain speed is lessthan 50 m/min (164 ft/min)). Please refer to the selection pages for moredetails.

Operating Temperature: –10°C ~ +60°C (+14°F ~ +140°F)

Allowable Chain Speed: 200 m/min (656 ft/min)

Sprockets: RS Standard Sprockets can be used

Low Noise Roller Chain SN

SN Roller ChainTsubaki’s uniquely structured spring rollers are used for the chain rollers. When Tsubaki’s SNRoller Chain engages with the sprocket, the spring roller deforms and absorbs the force of the im-pact. The lower impact force reduces impact noise between chain and sprocket resulting in lowernoise levels. Compared with Tsubaki’s standard RS Roller Chain (pre-lubricated), noise levels ofSN Roller Chain are 6 ~ 8 dB lower. (In-house comparison testing)

50

Chain Speed (m/min)

RS50SN (Low Noise Roller Chain)

RS50 (Std. Roller Chain)

RS50SN (Low Noise Roller Chain)RS50 (Std. RS Roller Chain)

• Test Chain

• Test Conditions Chain Tension: 3.92 kN Lubrication: Pre-lubricated only Measurement position: 300 mm from the drive sprocket

Noise Level (Tsubaki Comparison)

Noi

se L

evel

dB

(A

)

50

60

65

70

75

80

85

100 150

300 mm

Speed Reducer with Motor

Drive Sprocket

Measurement Device

Standard RS Roller Chain

Sprocket

Impact Noise Abatement

Impact Noise

Roller

Low Noise Roller Chain

Sprocket

Spring Roller (deforms)

64


CHAI

N

SN Roller Chain

P

D

R

P

h

L

HW

T

L2L1

T Offset Link

Chain No.

Pitch

P

Link Plate Pin

ThicknessT

HeightH

Heighth

Diam.D LL1 L2

RS40SN

RS50SN

RS60SN

RS80SN

12.70

15.875

19.05

25.40

RollerDiam.

R 8.5

10.8

12.6

16.8


PlatesW

7.95

9.53

12.70

15.88

1.5

2.0

2.4

3.2

12.0

15.0

18.1

24.1

10.4

13.0

15.6

20.8

3.97

5.09

5.96

7.94

8.25

10.3

12.85

16.25

L1 + L2

18.2

22.3

27.6

35.5

9.95

12.0

14.75

19.25

18.0

22.5

28.2

36.0

(Unit: mm)

Chain No.


kN(kgf)RS40SN

RS50SN

RS60SN

RS80SN

17.7(1800)

28.4(2900)

40.2(4100)

71.6(7300)


kN(kgf)

Max. AllowableLoad

kg/m

Approx.Mass

kg/m


19.1(1950)

31.4(3200)

44.1(4500)

78.5(8000)

3.63(370)

6.37(650)

8.83(900)

14.7(1500)

0.64

1.04

1.53

2.66

240

192

160

120

StockItems

Note: When one-pitch offset links (OL) are used, the Max. Allowable Load becomes 65% of the values shown above.

Connecting links for RS80SNare cotter pin-type.

Small Sprocket Revolution Speed (r/min)

LubricationSmallSprocketTeeth No. Manual Lubrication or Drip Lubrication Oil Bath

10 25 50 100 200 300 400 500 700 900 1000 1200 1400 1600

0.050.050.060.070.07

0.080.080.090.100.10

0.110.120.120.130.13

0.140.150.150.170.18

0.190.210.240.28

0.110.120.140.150.17

0.180.190.210.220.23

0.250.260.280.290.31

0.320.330.350.380.41

0.440.480.560.63

0.210.230.260.280.31

0.330.360.390.410.44

0.460.490.520.540.57

0.600.620.650.710.76

0.810.901.041.18

0.390.430.480.530.57

0.620.670.720.770.82

0.870.920.961.011.06

1.111.161.211.321.42

1.521.671.932.20

0.720.810.900.981.07

1.161.251.341.431.52

1.621.711.801.891.99

2.082.172.272.462.65

2.843.133.614.10

1.041.161.291.421.54

1.671.801.932.062.20

2.332.462.592.732.86

3.003.133.273.543.81

4.094.505.205.91

1.351.511.671.842.00

2.172.342.502.672.84

3.023.193.363.533.71

3.884.064.234.584.94

5.295.83

1.641.842.042.242.45

2.652.863.063.273.48

3.693.904.114.324.53

4.744.965.175.606.04

1.061.251.441.641.85

2.062.292.522.763.01

3.263.523.794.06

0.730.850.991.121.27

1.421.571.731.89

0.620.730.840.961.08

1.211.34

0.470.550.640.730.82

0.380.440.51

0.31910111213

1415161718

1920212223

2425262830

32354045

� RS40SN kW Ratings Table (Single strand Chain Drive kW)

Note: When one-pitch offset links (OL) are used, the kW ratings become 80% of the values shown above.

65


10 25 50 100 150 200 300 400 500 600 700 800 900 1000 1100

0.180.200.220.240.26

0.290.310.330.350.38

0.400.420.440.470.49

0.510.540.560.610.65

0.700.770.891.01

0.410.450.500.550.60

0.650.700.750.810.86

0.910.961.011.061.12

1.171.221.281.381.49

1.601.762.032.31

0.760.850.941.031.13

1.221.311.411.501.60

1.701.791.891.992.08

2.182.282.382.582.78

2.983.283.794.30

1.411.581.751.932.10

2.282.452.632.812.98

3.163.343.533.713.89

4.074.264.444.815.18

5.566.127.078.03

2.032.282.532.773.03

3.283.533.794.044.30

4.564.825.085.345.60

5.876.136.406.937.46

8.008.8210.211.6

2.632.593.273.593.92

4.254.574.905.245.57

5.906.246.586.927.26

7.607.948.298.989.67

10.411.413.215.0

3.794.254.715.185.65

6.126.597.067.548.02

8.518.999.489.9610.5

10.911.411.912.913.9

14.9

3.413.994.605.245.91

6.617.338.078.849.63

10.411.312.112.913.5

14.214.815.5

2.442.853.293.794.23

4.735.245.786.336.89

7.478.07

1.852.172.502.853.22

3.603.994.394.81

1.471.721.992.262.55

2.85

1.201.411.631.852.09

1.011.181.36

0.861.01

0.75910111213

1415161718

1920212223

2425262830

32354045


LubricationSmall Sprocket Teeth No. Manual Lubrication or Drip Lubrication Oil Bath

� RS50SN kW Ratings Table (Single strand Chain Drive kW)Small Sprocket Revolution Speed (r/min)

Lubrication

Small Sprocket Teeth No. Manual Lubrication or Drip Lubrication Oil Bath

10 25 50 100 200 300 400 500 700 900 1000 1200

0.100.110.120.140.15

0.160.170.190.200.21

0.230.240.250.260.28

0.290.300.320.340.37

0.400.440.500.57

0.230.260.280.310.34

0.370.400.430.460.49

0.510.540.570.600.63

0.660.690.720.780.84

0.900.991.151.30

0.430.480.530.580.64

0.690.740.800.850.91

0.961.011.071.121.18

1.241.291.351.461.57

1.691.862.142.44

0.800.900.991.091.19

1.291.391.491.591.69

1.791.892.002.102.20

2.302.412.512.722.93

3.143.464.004.54

1.491.671.852.032.22

2.402.592.782.963.15

3.343.533.723.914.11

4.304.494.695.085.47

5.876.467.478.48

2.152.412.672.933.19

3.463.734.004.274.54

4.815.095.365.645.92

6.196.476.757.327.88

8.459.3110.8

2.783.123.463.804.14

4.484.835.185.535.88

6.246.596.957.317.66

8.038.398.759.4810.2

2.112.472.853.243.66

4.094.534.995.475.96

6.466.987.518.058.60

9.179.75

1.271.491.721.962.21

2.472.743.013.30

0.871.021.181.341.51

0.740.871.011.15

0.570.66

910111213

1415161718

1920212223

2425262830

32354045



66


CHAI

N


10 25 50 100 150 200 300 400 500 600 700 800

0.400.450.490.540.59

0.640.690.740.790.84

0.890.940.991.041.10

1.151.201.251.361.46

1.571.731.992.26

0.911.021.131.241.35

1.461.581.691.801.92

2.032.152.272.382.50

2.622.742.853.093.33

3.573.944.555.16

1.691.902.102.312.52

2.732.943.153.373.58

3.804.014.234.454.67

4.895.115.335.776.22

6.677.348.489.63

3.163.543.934.314.70

5.095.495.886.286.68

7.087.497.898.308.71

9.129.539.9410.811.6

12.413.715.818.0

4.555.105.656.216.77

7.347.908.489.059.63

10.210.811.412.012.5

13.113.714.315.516.7

17.919.722.825.9

5.906.617.338.058.77

9.5110.211.011.712.5

13.214.014.715.516.2

17.017.818.520.121.6

23.225.6

6.607.738.9210.211.5

12.814.215.616.918.0

19.020.121.222.323.4

24.525.626.7

4.295.025.796.607.44

8.329.2210.211.112.1

13.1

3.073.594.144.725.33

5.956.60

2.332.733.153.594.05

1.852.172.50

1.52910111213

1415161718

1920212223

2425262830

32354045


Lubrication

Small Sprocket Teeth No. Manual Lubrication or Drip Lubrication Oil Bath


67

Curved®ChainThis is a roller chain that greatly bends in a transverse direction throughthe original structure of the pins and bushings and the clearance betweenthe link plates. RS Standard sprockets can be used enabling ease ofcurved drive use.

(Application)Suitable for curved roller conveyor transmission and conveyors withcurved conveyance. Guides are required for the curved areas.

BS / DIN Roller ChainThis roller chain meets the requirements for ISO“B”<ISO606-1994(E)>

Curved / BS/DIN Roller Chain

68


CHAI

N

CU Curved Chain

Chain No.

Link Plate Pin

RS40CU

RS50CU

RS60CU

RS80CU

Pitch

P12.70

15.875

19.05

25.40

7.92

10.16

11.91

15.88

7.95

9.53

12.70

15.88

1.5

2.0

2.4

3.2

12.0

15.0

18.1

24.1

10.4

13.0

15.6

20.8

3.97

5.09

5.96

7.94

18.2

23.0

28.3

36.8

8.45

10.60

13.25

16.75

9.75

12.40

15.05

20.05

350

400

500

600

15.5(1580)

24.1(2460)

34.9(3560)

61.6(6280)

1.86(190)

2.84(290)

4.02(410)

6.96(710)

0.61

1.01

1.40

2.47

240

192

160

120

Stock

items

Min.Radius

R

Ave.Tensile

StrengthkN(kgf)

Max.Allowable

LoadkN(kgf)

Approx.Mass

kg/m

No. of Links/

Unit Delivery

RollerDiam.

R

Width b/wInner

Link PlatesW

ThicknessT

HeightH

Heighth

Diam.D L1L1 + L2 L2

Chain No.

Link Plate Pin

RS40SS-CU

RS50SS-CU

RS60SS-CU

RS80SS-CU

Pitch

P12.70

15.875

19.05

25.40

7.92

10.16

11.91

15.88

7.95

9.53

12.70

15.88

1.5

2.0

2.4

3.2

12.0

15.0

18.1

24.1

10.4

13.0

15.6

20.8

3.59

3.97

5.09

5.96

18.1

22.2

28.3

35.0

8.35

10.15

13.25

16.50

9.75

12.05

15.05

18.50

400

500

600

800

0.26 (27)

0.44 (45)

0.69 (70)

1.03(105)

0.61

1.01

1.40

2.47

240

192

160

120

Please

consult

Tsubaki

Min.Radius

R

Max.Allowable

LoadkN(kgf)

Approx.Mass

kg/m

No. of Links/

Unit Delivery

RollerDiam.

R

Width b/wInner

Link PlatesW

ThicknessT

HeightH

Heighth

Diam.D L1L1 + L2 L2

� Stainless Steel (SUS304)

69

TSUBAKIChain No.

P R W D L1 L2

ISOBS/DIN

No.

Approx.Weight

kg/m

Pitch RollerDiam.

C

TransversePitch

BearingArea

(Nominal)cm2

No. ofLinks/Unit(5 mts)

Min.Tensile

StrengthkN(kgf)


Plates

Pin

T (RL) t (PL) H (max)

Link plate

(Dimensions in mm)

SINGLE STRAND

DOUBLE STRAND

RS05B

RF06B ★

RS08B ●

RS10B ●

RS12B ●

RS16B ●

RS20B

RS24B

RS28B

RS32B

RS40B

RF06B-2 ★ ▲

RS08B-2 ▲

RS10B-2

RS12B-2

RS16B-2

RS20B-2

RS24B-2

RS28B-2

RS32B-2

RS40B-2

RF06B-3 ★ ▲

RS08B-3 ▲

RS10B-3

RS12B-3

RS16B-3

RS20B-3

RS24B-3

RS28B-3

RS32B-3

RS40B-3

05B

06B

08B

10B

12B

16B

20B

24B

28B

32B

40B

06B-2

08B-2

10B-2

12B-2

16B-2

20B-2

24B-2

28B-2

32B-2

40B-2

06B-3

08B-3

10B-3

12B-3

16B-3

20B-3

24B-3

28B-3

32B-3

40B-3

8.00

9.525

12.70

15.875

19.05

25.40

31.75

38.10

44.45

50.80

63.50

9.525

12.70

15.875

19.05

25.40

31.75

38.10

44.45

50.80

63.50

9.525

12.70

15.875

19.05

25.40

31.75

38.10

44.45

50.80

63.50

5.00

6.35

8.51

10.16

12.07

15.88

19.05

25.40

27.94

29.21

39.37

6.35

8.51

10.16

12.07

15.88

19.05

25.40

27.94

29.21

39.37

6.35

8.51

10.16

12.07

15.88

19.05

25.40

27.94

29.21

39.37

3.00

5.72

7.75

9.65

11.68

17.02

19.56

25.40

30.99

30.99

38.10

5.72

7.75

9.65

11.68

17.02

19.56

25.40

30.99

30.99

38.10

5.72

7.75

9.65

11.68

17.02

19.56

25.40

30.99

30.99

38.10

2.30

3.28

4.45

5.08

5.72

8.28

10.19

14.63

15.90

17.81

22.89

3.28

4.45

5.08

5.72

8.28

10.19

14.63

15.90

17.81

22.89

3.28

4.45

5.08

5.72

8.28

10.19

14.63

15.90

17.81

22.89

3.80

6.35

8.4

9.55

11.2

17.75

19.9

26.65

32.45

32.1

39.25

11.43

15.3

17.85

20.85

33.55

38.25

50.8

62.15

61.25

75.4

16.9

22.25

26.15

30.6

49.5

56.5

75.1

91.95

90.5

111.5

4.70

7.65

10.0

11.25

13.1

19.95

23.1

31.85

37.45

37.7

45.05

12.57

16.9

19.55

22.75

35.75

41.45

56.0

67.15

66.85

81.2

17.5

23.85

27.85

32.5

51.7

59.7

80.2

96.95

96.10

117.3

0.75

1.27

1.6

1.5

1.8

4.0

4.4

6.0

7.5

7.0

8.5

1.27

1.6

1.5

1.8

4.0

4.4

6.0

7.5

7.0

8.5

1.27

1.6

1.5

1.8

4.0

4.4

6.0

7.5

7.0

8.5

0.75

1.0

1.6

1.5

1.8

3.2

3.4

5.6

6.3

6.3

8.0

1.0

1.6

1.5

1.8

3.2

3.4

5.6

6.3

6.3

8.0

1.0

1.6

1.5

1.8

3.2

3.4

5.6

6.3

6.3

8.0

—

—

—

—

—

—

—

—

—

—

—

10.24

13.92

16.59

19.46

31.88

36.45

48.36

59.56

58.55

72.29

10.24

13.92

16.59

19.46

31.88

36.45

48.36

59.56

58.55

72.29

5.0

9.0

19.0

23.0

31.0

70.0

98.1

167

200

255

373

17.0

32.0

44.5

61.0

128

197

335

374

485

716

24.9

47.5

66.8

92

192

295

500

560

729

1,080

0.11

0.28

0.50

0.67

0.89

2.10

2.95

5.54

7.40

8.11

12.76

0.56

1.00

1.34

1.78

4.20

5.91

11.09

14.81

16.23

25.52

0.84

1.50

2.01

2.67

6.30

8.86

16.64

22.21

24.34

38.28

0.18

0.39

0.70

0.95

1.25

2.70

3.85

7.45

9.45

10.25

16.35

0.75

1.35

1.85

2.50

5.40

7.65

14.65

18.80

20.10

32.00

1.11

2.00

2.80

3.80

8.00

11.45

21.75

28.20

29.90

47.75

626

526

394

316

264

198

158

132

114

100

80

526

394

316

264

198

158

132

114

100

80

526

394

316

264

198

158

132

114

100

80

(510)

(920)

(1,930)

(2,340)

(3,160)

(7,100)

(10,000)

(17,000)

(20,400)

(26,000)

(38,000)

(1,730)

(3,260)

(4,540)

(6,220)

(13,000)

(20,100)

(34,100)

(38,100)

(49,500)

(73,000)

(2,540)

(4,840)

(6,810)

(9,400)

(19,600)

(30,100)

(51,000)

(57,100)

(74,300)

(110,000)

7.1

8.2

11.8

14.7

16.1

21.0

26.0

33.4

36.4

42.2

52.9

8.2

11.8

14.7

16.1

21.0

26.0

33.4

36.4

42.2

52.9

8.2

11.8

14.7

16.1

21.0

26.0

33.4

36.4

42.2

52.9

TRIPLE STRAND

Notes: Flat shape link plateMiddle link plate has one solid plate.Riveted type chain will be supplied unless otherwise specified.Center sink riveting is applied (Shown in single strand drawing above).Double stake riveting is applied to all other sizes including multi-strand chain.

★

▲

●

PP

HH

L2L1

t

R MT

D L2L1

C

D

t

R MT

L2L1

CC

D

t

R MT

TT

BS/DIN CHAIN SERIES■ BRITISH STANDARD ROLLER CHAINSSingle, Double and Triple Strand TSUBAKI BS RollerChains are standardized in accordance with the ISOtype “B”. The dimensions are fully interchangeable withchains built according to the BS228: 1970 and theDIN8187.

70

PERI

PHER

ALIN

STRU

MEN

TS

PERIPHERAL INSTRUMENTS� Chain Cutting Tools ………………………………………………71

1. Chain Vices

2. Punches

3. Chain Breakers

4. Poly Steel Chain Cutting Tools

5. Lambda Chain Cutting Tools

� Chain Connecting Tools …………………………………………71

1. Chain Pullers

71

Roller Chain Peripheral InstrumentsChain Cutting ToolsThe chain you have purchased is either fixed length (3,048 mm) or on a reel. We have a selection of tools below, which al-low you to cut the chain to the necessary length. For details on the use of the tools, please refer to the “Roller ChainMaintenance” section.

1. Chain Vices

2. Punches

3. Chain Breakers

4. Cutting Tools for Poly Steel ChainStandard cutting tools cannot be used for Poly Steel chain.An exclusive Poly Steel Chain punch and cradle is re-quired.

5. Cutting Tools for Lambda (Λ) ChainAn exclusive cradle, primary punch and secondary punchare required for the disassembly of Lambda chain.

Note: 1. All types are stock items.2. The exclusive punch and

cradle are a set.

Cutting Tool

Note: All types are stock items. They can also be used for otherchains besides RS Roller Chain, such as BS Roller Chain,and Marine Engine Chain. However, breakers exclusivelyfor Marine Engine Chain are manufactured separately.

Chain Connecting Tools

Note: All types are stock items

Note: All types arestock items

RSCV-1 RSCV-2 RSCV-3

RSCS-A RSCS-B RSCS-C

Primary Punch Secondary Punch Riveting Punch

H

L

R R R

L LL

R

L

H

B

Cradle

L

H

BCradle

Primary Punch

SecondaryPunch

RSCV-1

RSCV-2

RSCV-3

RS40 ~ 80

RS40 ~ 160

RS80 ~ 240

RS40

RS40 ~ 100

RS80 ~ 160

—

RS40 ~ 100

RS80 ~ 100

100

180

200

65

110

170

94 ~ 115

120 ~ 151

180 ~ 220

TypeSuitable Chain Dimensions

Single Strand Double Strand Triple Strand L H B

RSS-1

RSS-2

RSS-3

RS 40 ~ 60

RS 80 ~ 120

RS140 ~ 240

60

70

80

RSD-1

RSD-2

RSD-3

80

90

120

Suitable ChainType

Primary Punch R Secondary Punch R

RS40 Punch

RS50 Punch

RS60 Punch

RS80 Punch

RS40

RS50

RS60

RS80

100

100

100

100

Suitable ChainType

Riveting Punch R

RSCS-A1

RSCS-A2

RSCS-A3

RSCS-A4

RSCS-B1

RSCS-C1

RSCS-C2

RSCS-C3

RS40 ~ 60

RS80 · 100

RS120 · 140

RS160 ~ 240

RS25

RS35

RS41

RF06B

116

119

119

119

185

222

290

708

TypeSuitable Chain(Single Strand)

Suitable Chain(Single & Double Strand)L Type L

RF25PC-KOGU

RF35PC-KOGU

RF40PC-KOGU

RF50PC-KOGU

RF60PC-KOGU

35

50

65

80

100

20

30

35

40

45

20

30

35

35

40

52

52

56

56

56

RF25PC

RF35PC

RF40PC

RF50PC

RF60PC

Type SuitableChainL H B R

Note: 1. All types are stock items.2. The exclusive punch and

cradle are a set. Thedimensions of the punchesare the same as thoseshown in No. 2 on the left.

Cutting Tool

RSD 40Λ-KOGU

RSD 50Λ-KOGU

RSD 60Λ-KOGU

RSD 80Λ-KOGU

RSD100Λ-KOGU

RSD120Λ-KOGU

RSD140Λ-KOGU

65

80

95

130

160

160

180

32

40

48

60

73

88

98

32

40

48

60

73

88

98

RSD40-ΛRSD50-ΛRSD60-ΛRSD80-ΛRSD100-ΛRSD120-ΛRSD140-Λ

Type SuitableChainL H B

Note: All types are stock items.

RSM-35

RSM-60

RSM-80

118

185

250

70

110

145

RS35 ~ 60

RS60 ~ 100

RS80 ~ 240

Type Suitable ChainL W

B

1. Chain PullersThis tool is used to bring the chain ends together when in-stalling on a machine.

RSM-60

RSM-80RSM-35L

( MA

X)

W

L( M

AX

)

W

72

SELE

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NROLLER CHAIN SELECTION1. Selection Guide …………………………………………………………73

2. Service Factors …………………………………………………………74

3. Roller Chain Provisional Selection Chart ……………………………75

4. Selection Formulae ……………………………………………………76

5. General Selection ………………………………………………………79

6. Slow Speed Selection …………………………………………………81

7. Slow Speed Selection (Special) ………………………………………83

8. Lifting Transmissions …………………………………………………84

9. Selection by Temperature ……………………………………………88

10. Special Selection for Corrosion-Resistant Roller Chain ……………88

11. Anti-Corrosion Reference Guide for Corrosion Resistant Roller Chain ……………………………………………………………89

0When there are regulations by law or guidelines governing theselection of a chain, please follow both of these as well as theselection methods mentioned in this catalog, and then selectthe chain with the most leeway.

A Drive Chain Selection Program offering“General Selection” and “Slow-SpeedSelection” of 6 chain types (BS/DIN, ANSI80th, LAMBDA, SUPER SERIES, DP andWP) is available on request.

SelectionSoftware

CD-ROM

73

Connecting partsthat can be used

M-CL

RS

SUPER

RSD-Λ

RSD-Λ-NP

RSDX-Λ

RS-KT

RS-SN

F-CL 2-pitchOL

1-pitchOL

RS

SUPER

RS-HT

SUPER-H

Ultra-Super

NP

WP

DP

SS, AS, LS

PC

PC-SY

NS

TI

RS-KT

RS-SN

ChaintypeApplication Essential points for selec-

tionSelection method

Ordinary transmission

Selection based on kWratings table

General selection

Sagging

No sagging Small sprocket r/min

kW

Page 79

Ordinary transmission

Selection based on Max.Allowable Load(economical selection, chain speedv = 50 m/min)

Slow speed selection

Slow speed selection (special)Starting frequency - morethan 6 times/day (8hrs) Page 83

Starting frequency - morethan 5 times/day (8hrs) Page 81

Sagging

No sagging

Load

Tensile strength

Max. Allowable Load

Frequency1 10 7

Lifting Application Lifting roller chain selection

Page 84

Selection based on Max.Allowable Load(chain speed V = 50 m/min)Please use F-CLs or exclusive CLsfor end-bolts

CL : abbrev. of Connecting LinkOL : abbrev. of Offset Link

Roller Chain Selection1. Selection Guide

! : Available : Allow for percentage decline in kW ratings (Refer to each kW ratings table)' : Allow for percentage decline in strength (Refer Pgs. 81 - 83) – : Unavailable ✕ : Not applicable Dotted line : Made-to-order

74


SELE

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Data required for roller chain selection1) Driven machine2) Load classification 3) Source of power 4) kW to be transmitted5) Diameter and RPM of driving shaft6) Diameter and RPM of driven shaft7) Center distance between shafts

Necessary power (motor) characteristics for thespecial method of chain selection1) Moment of inertia2) Rated torque3) Starting torque4) Stalling torque

2. SERVICE FACTORSTsubaki offers simplex, duplex and triplex chains in RF06Bto RS40B of BS/DIN European standard. In ANSI Americanstandard, up to 6 strands are available as standard itemsfrom RS40 to RS240 and up to triplex for RS25 and RS35. Inmultiple strand chain drives, the load is unequal across thewidth of the chain, so the transmission capability of multiplestrand chain is calculated using multiple strand factorsshown in the table below.

Service factor Ks

The chain’s transmission capacity is affected if there is fre-quent load fluctuation. The appropriate service factor Ks

must be applied based on the source of power and type ofmachine as shown in the table below.Please note that the service factor is never smaller than 1.0.

Speed factor Kv and sprocket teeth factor KC

Table 3 : Speed factor, Kv and sprocket teeth factor KC

Shock factor KThis coefficient is determined by the rate of inertia betweenthe prime mover and the driven machinery (rate of I, GD2)as well as the amount of backlash in the transmissionequipment. When rate of inertia R > 10, R = 10When rate of inertia R < 0.2, R = 0.2

When I or GD2 for either the prime mover or driven machin-ery is unknown, use the value of R on table 4.

Table 4 : Shock factor K

Imbalance load factor Ku

When carrying out shuttle traction and lifting with twochains, or four chains for shuttle drive and lifting, the chaintension is not uniform. This must be accounted for by multi-plying the following imbalance load coefficient Ku to adjustthe left-and-right load imbalance.Example : For four lifting strands, the imbalance load factorfor one strand Ku = 0.6 × 0.6 = 0.36

Sprocket teeth factor Kc

Chain speed (m/min)

Small sprocket teeth

101.0

1.1

Kv·

Kc

1.2

1.3

1.4

15 20 25 30 35 40 50

10 15 20 25 30 35 40 50 60

Speed factor Kv

3.02.52.0

1.5

1.00.8

0.60.50.4

0.3

0.2

0.2 0.3 0.5 0.8 2 3 5 8 101

HoistHoist work Conveyor

k

Sho

ck fa

ctor

Inertia ratio R

R= Motor shaft converted inertia of loadInertia of motor

flywheelcrane travel and shuffle

gang roll

Mill

For no backlash in transmission equipment, etc.

For no backlash in transmission equipment

Table 1 : Multi-strand factor

No. of strands

2 strands 3 strands 4 strands 5 strands 6 strands

Multi-strand factor

1.7 2.5 3.3 3.9 4.6

Table 2 : Service factor Ks

Type of Impact Machines

Belt Conveyors with small load fluctuation, chain conveyors, centrifugal blowers, ordinary textile machines, ordinary machines with small load fluctuation.

Smooth

Some impact

Large impact

Electric Motor or Turbine

Centrifugal compressors, marine engines, conveyors with some load fluctuation, automatic furnaces, dryers, pulverizers, general machine tools, compressors, general work machines, general paper mills.

Press, construction or mining machines, vibration machines, oil well rigs rubber mixers, rolls, roll gangs, general machines with reverse or large impact loads.

1.0

1.3

1.5

With hydraulicdrive

1.0

1.2

1.4

Withouthydraulic drive

1.2

1.4

1.7

Source of Power

Internal Combustion Engine

Table 5 : Imbalance load factor Ku2 lifting strands4 lifting strands

0.60.36

75

3. Roller Chain Provisional Selection Tables

70

50

20

30

10

7

5

3

2

1

0.7

0.5

0.3

0.2

0.1

0.07

0.05

0.03

0.02

0.01

100

200

300

400

3 5 7 10 15 20 30 50 70 100 200 300 500 1000 2000

3000 5000

7000

700

150

Small sprocket rotation speed r/min

Ex.: 20T in the graph refers to the number of sprocket teeth

100

7050

20

30

107

5

3

2

1

0.7

0.5

0.3

0.2

0.1

0.07

0.05

0.03

200

300

500

700

1000

100

70

50

20

30

10

7

5

3

2

1

0.7

0.5

0.3

0.2

0.1

0.07

0.05

0.03

0.02

200

300

500

700

Des

ign

kW

RS240

RS200

RS180

RS160

RS140

RS120

RS100

RS80

RS60

RS50

RS40

RS35

RS25

17T

17T

14T

13T

13T

13T

13T

13T

13T

13T

13T

13T

13T

20T

17T

16T

17T

18T

18T

18T

18T

18T

18T

30T

20T

16T

20T

18T

Triplestrand

Doublestrand

Singlestrand

Table 6: Provisional selection chart for RS Roller Chain (Lambda Roller Chain)

How to use this table (Table 6)1. Example: Single strand chain, de-

sign kW = 5 kW

(1) Assume that the speed of thesmall sprocket is 100 r/min.Judging from the intersectingpoint of design kW value of 5 kW(vertical axis) and the speed val-ue of 100 r/min (horizontal axis),RS80 and a sprocket with be-tween 13 and 18 teeth would beappropriate. Therefore, based onthe position of the intersection,we can see that a 14T sprocketcan be used.

(2) Assume that the speed of thesmall sprocket is 300 r/min.Following the same procedureshown in the above example,RS60 and a sprocket with lessthan 13 teeth or RS50 and asprocket with more than 18 teethwould be appropriate. This tableis used for tentative selectionsonly. The kW ratings tablesshould be used to confirm thechain sizes.

(3) When the chain speed is lessthan 50 m/min., it is more eco-nomical to select your RS RollerChain by slow speed selection.

(4) Please allow for a 20% drop inthe kW rating values shown in thedesign kW ratings chart (Table 6)when 1-pitch offset links areused.

(5) A 4-pitch offset link is availablefor SUPER Roller Chain and thekW ratings are the same as inTable 7.

SUPER240

SUPER100

SUPER8016

T13

T

SUPER200

SUPER160

SUPER140

SUPER120

13T

20T13

T20T

16T13

T16

T13

T16

T13

T

20T

16T13

T

16T

16T

70

100

30

50

5

7

10

20

200

300

500

700

Triplestrand

45

7

10

20

30

50

70

200

100

300

500

Doublestrand

70

50

20

30

10

7

5

3

2

100

200

300

Singlestrand

1 2 3 5 7 10 20 30 50 70 100 200 300 500 1000

Small sprocket rotation speed r/min

Des

ign

kW

Table 7: Provisional selection chart for SUPER Roller Chain

76


SELE

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N

4. SELECTION FORMULAE

4-1 Symbols and units used in formulae (Table 8)

CC’ dD Fb F’bFc F’cFR F’RFm F’mFms F’msFmbF’mb FsF’sFw F’wf1

G i IR {GD2R}Im {GD2m}K KcKsKtKuKvL m M {W}µ

n n1n2N N’P R S

tbtsTbTsTRTmTnV

Center distance in pitchesCenter distance between shaftsPitch circle diameter of the small sprocket Outer diameter of the drum Chain tension when the prime mover is decelerating (stalling) Design chain tension when the prime mover is decelerating (stalling) Chain tension of shuttle drive Design chain tension of shuttle drive Chain tension from torque on load side (actual load)Design chain tension from torque on load side (actual load)Chain tension from prime mover rated output Design chain tension from prime mover rated output Chain tension from starting torque of prime moverDesign chain tension from starting torque of prime mover Chain tension from stalling torque of prime moverDesign chain tension from stalling torque of prime mover Chain tension when prime mover accelerates (starting) Design chain tension when prime mover accelerates (starting) Chain tension from load (actual load) Design chain tension from load (actual load) Coefficient of friction between roller and rail (with lubrication 0.14, without lubrication 0.21)Standard acceleration from gravity G = 9.80665 m/s2

Speed ratio (example) if ratio is 1/30 then i = 30Converted moment of inertia of the loaded prime mover output shaftMoment of inertia of the prime mover output shaft Shock factorSprocket teeth factor Service factorTemperature coefficient Imbalance load factorSpeed factorChain length (number of links) Unit mass of chain Mass of load (weight) Coefficient of friction between the rail and the axle = 0.1 (shuttle drive) Coefficient of friction between the rotating body and the support rollers =0.3 (pin gear)RPM of the small sprocket RPM of driver shaftRPM of driven shaft No. of teeth for large sprocket No. of teeth for small sprocket Chain pitch Inertia ratio Attachment height for RS attachment chain (distance from the drum surface to the chain pitch center) The time for deceleration of the prime mover (when stalling)The time for acceleration of the prime mover (when starting)Stalling torque of the prime moverStarting torque of the prime moverLoad torque Working torqueRated torque of the prime mover Chain speed

—m

mm mmkNkNkNkNkNkNkNkNkNkNkNkNkNkNkNkN—

——

kg·m2

kg·m2

———————

kg/mkg—

r/min r/min r/min

——

mm—

mm

s s

%(kN·m)%(kN·m)

kN·m kN·m kN·m m/min

—m

mm mmkgf kgf kgf kgf kgf kgf kgf kgf kgf kgf kgf kgf kgf kgf kgf kgf —

——

kgf·m2

kgf·m2

———————

kgf/m kgf—

rpm rpm rpm ——

mm—

mm

s s

%(kgf·m)%(kgf·m)

kgf·m kgf·m kgf·m m/min

Symbol Definition SI unitGravitational unit

— —

Refer Table 4Refer Table 3Refer Table 2Refer Table 10Refer Table 5Refer Table 3

Refer Table 4

77

4-2 Formulae (Table 9)1) Perform all selections by taking the transmission efficiency including the chain as η = 12) Use the calculated value in items 11 and 12 from this table for the tension and transmission kW used in the selection.

Item

1. Chain length (number of links): L, ordinary transmission

2. Chain speed: V

3. Chain tension from prime mover rated output = Fm

4. Inertia where the motor shaft converts the moment of inertia of the load I(GD2): IR (GD2R)

5. Prime mover rated torque: Tn

6. Load torque: TR

7. Working torque: Tm

8. Chain tension from starting torque: Fms

Chain tension from stalling torque: Fmb

SI unit

For ordinary transmission between two shafts

Even if the fractional part of the value found for L (below that of the decimal point) is small,round it up to the nearest integer and add a link.An offset link must be used when an odd number of links exist; however, if possible, changethe number of teeth on the sprocket or the distance between shafts so that an even numberof links may be used.

Gravitational unit

Same as left ( kgf·m )

Lifting

Shuttle traction

(1) Where the number of teeth and distance between shafts has been decided for both sprockets.

(2) Where the number of links of chain and number of teeth has been decided.

L =2

N+N’ +2C+C

N–N’6.28( )

2

C =81 { 2L–N–N’+ ( 2L–N–N’) –

2

9.868 (N–N’)

2}

V =1000

P × N’ × n ( m/min )

Fm =V

60 × kW ( kN ) Fm =V

6120 × kW ( kgf )

IR = M ×2πn1

V ( kg·m )( )22 GD2

R= W × πn1

V ( kgf·m )( )22

Tn = 9.55 ×n1

kW ( kN·m ) Tn = 974 ×n1

kW ( kgf·m )

TR = 2 × 1000 × i

M × d ( kN·m )×1000

G

TR = F’c ×2 × 1000 × i

1 ( kN·m )

TR = 2 × 1000 × i

W × d ( kgf·m )

Tm = 2 × 100

Ts(%)+Tb(%)( kN·m )× Tn

Tm = 2

Ts( kN·m )+Tb( kN·m )( kN·m )

* constant

OR

OR

Tm = 2 × 100

Ts(%)+Tb(%)( kgf·m )× Tn

Tm = 2

Ts( kgf·m )+Tb( kgf·m )( kgf·m )OR

Fms = { d / (2 × 1000) } × 100

Ts(%) × i( kN )× Tn × 1

Fms = d / (2 × 1000)Ts( kN·m ) × i

( kN )× 1

Fmb = { d / (2 × 1000) } × 100

Tb(%) × i( kN )× Tn × 1.2*

OR Fmb = d / (2 × 1000)Tb( kN·m ) × i

( kN )× 1.2*

—

78


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N

All of the chain tensions in the above formulae are the tensions when using one strand of chain.When using two strands of chain or more, calculate the chain tension for one strand and multiply it by the imbalance loadfactor Ku (Table 5) for the number of strands being used.

Item

9. Chain tension when the primemover accelerates: Fs

Chain tension when the primemover decelerates: Fb

SI unit

* For shuttle traction Fw becomes Fc

FR is calculated from TR

Gravitational unit

ts = 375 × (Tm – TR)( Im+IR ) × n1

( s )×10004 ×

10. Shuttle traction chaintension: Fc

11. Design kW (forgeneral selection)

12. Design chain tensionfrom the load torque: F’R

Design chain tensionfrom the prime mover: F’m

Design chain tensionfrom the starting torque: F’ms

Design chain tensionfrom the stalling torque: F’mb

Design chain tensionof the shuttle drive: F’c

Design chain tensionwhen accelerating: F’s

Design chain tensionwhen decelerating: F’b

Design chain tensionfrom the load: F’w

13. Acceleration time of the prime mover: ts

14. Deceleration time of the prime mover: tb

15. Inertia ratio: R

16. Conversion of the flywheel effect (GD2) to the moment of inertia (I)

Fs =ts × 60 × 1000

M × V ( kN )+Fw* Fs =ts × 60 × G

W × V ( kgf )+Fw*

Fb =tb × 60 × 1000

M × V ( kN )+Fw* Fb =tb × 60 × G

W × V ( kgf )+Fw*

Fc = ( M × µ+2.1 × m × C’ × f1 ) × Fc = W × µ+2.1 × m × C’ × f1 ( kgf )

Design kW = Prime mover rated kW × Ks ( kW )

F’R = FR × Ks × Kv × Kc { kN ( kgf ) }

F’m = Fm × Ks × Kv × Kc { kN ( kgf ) }

F’ms = Fms × K × Kv × Kc { kN ( kgf ) }

F’mb = Fmb × K × Kv × Kc { kN ( kgf ) }

F’c = Fc × Ks × Kv × Kc { kN ( kgf ) }

F’s = Fs × Kv × Kc { kN ( kgf ) }

F’b = Fb × Kv × Kc { kN ( kgf ) }

F’w = M × Ks × Kv × Kc × 1000

( kN ) F’w = W(or Fw) × Ks × Kv × Kc ( kgf )

When the mass M (weight W) is unknown, find the shaft torque T = Tn × i, { kN·m ( kgf·m ) }

from the rated torque Tn of the prime mover and use F = 2T/d instead of W.

ts = 375 × (Tm – TR)

( GD m + GD R ) × n1( s )

2 2

tb = 375 × (Tm + TR)( Im + IR ) × n1

( s )×10004 ×

R = Im

IR

tb = 375 × (Tm+TR)

( GD m+GD R ) × n1( s )

2 2

R = GD mGD R2

2

1 kg·m · · · ( I )2 4 kgf·m · · · ( GD )2 2

G—

G—

G—

—

—

1000( kN )

G—

79

Procedure 4-5(1) Select the chain and the number of teeth for the small

sprocket:

The number of teeth for the small sprocket and a chainthat satisfies the number of revolutions of the highspeed shaft and design kW can be found by using theprovisional selection tables (Tables 6 & 7) or the kW rat-ing tables. When doing so, choose a chain of minimumpitch having the necessary kW rating. When there is a shortage of performance with a singlestrand, choose multi-strand chain. Further, when theoutside diameter of the sprocket has been made assmall as possible and the distance between shafts re-duced due to the space limitation, use a multi-strandroller chain with a small pitch.

(2) Select the number of teeth for the large sprocket:

If the number of teeth for the small sprocket has beendetermined, then multiply this value by the speed ratioand determine the number of teeth for the large sprock-et.It is appropriate to have more than 15 teeth for the smallsprocket. However, if the number of teeth for the largesprocket exceeds 120 as a result, then this is not favor-able. When this happens, reduce the number of teethfor the small sprocket; although, it is recommended touse more than 13 teeth.

Procedure 7 If possible, try to avoid using an offset link when using anodd number of links. Instead, try adjusting the distance be-tween the shafts until an even number of links is attained.

5. GENERAL SELECTION

Procedure

Data required for selectionProcedure 1

Service factor KsProcedure 2

Obtain thedesign kW

Procedure 3

Tentatively select the chainsize and number of teeth N’ forthe small sprocket from theprovisional selection table

Procedure 4-5

Make N’ 15 for smallsprockets and N <120 forlarge sprockets.

Determine the number of teeth N for the large sprocket from the speed ratio i

Same size increase innumber of teeth

1 size up

1 size down 1 strand up

Same size increase innumber of teeth

1 size up

Procedure 6

Chain and sprocketdetermined

End

From the kW rating table, kW rating of

the selected chain >design kW

Fits in the distancebetween shafts

Fitting on the max.shaft diameter

Y

Y

Y

N

N

N

Procedure 7 Calculate the chain leng-th L (number of links)

Procedure 8Determine the method oflubrication from number of revolutions of the small sprocket

>=

80


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N

Example based on the general selection

Motor

Agitator

Procedure 2: Use Table 2 to determine the service factorService factor Ks = 1.0

Procedure 3: Obtain design kW37 kW × 1.0 = 37 kW

Procedure 4, 5: Determine the chain and the number ofteeth for the sprocket. Based on the fact that the number of revolutions of the highspeed shaft is 750 r/min and the design kW is 37 kW, wecan find the chain number and the number of teeth of thesmall sprocket.

1. According to the kilowatt rating table, the best choicewould normally be a single strand of RS80-17 teeth.Since the speed ratio is 1/3 (250/750 r/min.), the neces-sary number of sprocket teeth would be 17 for the smallsprocket and 51 for the large sprocket. However, as theoutside diameters are 151 mm for 17 teeth and 427 mmfor 51 teeth, it exceeds the space limitation of 500 mm.(151 + 427 > 500 mm) Therefore, these sprockets are notsuitable.

2. As a single strand chain is not suitable, a double-strandRS60-2, 22 and 66 teeth would be possible.But this combination is not suitable due to the space limi-tation again (144 + 411 > 500 mm).

3. For triple strand, RS60-3, 15 and 45 teeth would be pos-sible.The sprocket’s diameters are 99 mm and 284 mm re-spectively, the sum of which is less than 500 mm. Thekilowatt rating of a 15 tooth sprocket for the RS60-3should be confirmed by the kilowatt rating for the RS60.The kilowatt rating of a 15 tooth sprocket is 14.1 kW at700 r/min, and 15.9 kW at 800 r/min. The kilowatt rating at750 r/min is about 15 kW. Since 15 kW is for a singlestrand chain, the kilowatt rating must be multiplied by amulti-strand factor of 2.5 for a triple strand (refer to Table1).Therefore, the kilowatt rating of RS60-3, 15 teeth at 750r/min. is 37.5 kW (15 × 2.5 = 37.5)

4. This 37.5 kW rating satisfies the design kW rating.

Procedure 6: Confirm the shaft diameterThe shaft diameter is confirmed by the dimension table.The max. shaft diameter of RS60-15T is 45.5 mm and canbe used for the shaft diameter of 45 mm. The maximumshaft diameter for RS60-3-45T is 63 mm and so satisfies ourshaft diameter of 60 mm. The outside diameter for bothsprockets is 90 mm and 284 mm respectively and fits withinthe prescribed space.

Procedure 7: Determine the distance between shaftsIf the center distance between shafts is 220 mm, from theformula the chain length of L is as follows:

In order to have an even number of links, we raise the valuebelow the decimal point to an integer and get 56 links.

Procedure 8: Confirm the method of lubrication From the kW rating table, lubrication method B is selectedfor the small sprocket of size RS60-3-15 T at 750 r/min.Lubrication is necessary by oil bath lubrication or by slingerdisc.

Procedure 1: Data required

Machine used : Agitator Type of shock : Smooth transmissionSource of power : Motor Rated power : 37 kW High speed shaft : Shaft diameter 45 mm 750 r/min.Low speed shaft : Shaft diameter 60 mm 250 r/min.Distance between shafts : 220 mmSpace limitation : 500 mm

L =2

45 +15 + 2 ×19.05220 + 6.28

45 – 15( )2

19.05220

= 55.07

81

6. SLOW SPEED SELECTION (Starting frequency-less than 5 times/day (8hrs))

Method of selection that applies for ordinary transmis-sion where the chain speed V is less than 50 m/min

(1) Applicable when making a more economical selectionfor RS and SUPER chain.

(2) Applicable when selecting RS-HT, SUPER-H and UL-TRA SUPER chain.

(3) In the case of severe conditions, such as transmissionswith lange impact, particularly from large loads and sideforces, please use F-CLs and 2-pitch offset links.

(4) When using offset and standard connecting links, allowfor the following strengths as a percentage of the max.allowable tension.M-type CL : 100%F-type CL : 100%2-pitch offset link (2POL) : 100%(Ref)1-pitch offset link (OL) : 65%

(5) The slow speed selection is an economical method ofselection that uses the complete kW rating of the rollerchain and should only be selected upon properly ascer-taining the conditions of transmission. In particular it isvital that sufficient attention be given to shock loads.

(6) Chain tension becomes large when using SUPER, RS-HT, SUPER-H and ULTRA SUPER chain, so avoid usingcommercialy available sprockets made of cast ironsince the strength of the rim and boss portions will incertain cases be insufficient. RS standard sprockets A type and B type as well as Ctype provide sufficient strength. (Materials such asSS400, S35C, SC450, etc. have to be used)

(7) For the high speed side, use a sprocket with a harden-ing process carried out on the surface of its teeth.

(8) Since the bearing pressure will be extremely large, becertain to lubricate the chain.

Procedure

Procedure 1

Calculation for designchain tension F’R, F’m

Procedure 4

Procedure 5

Determine the number of teeth N for the large sprocket from the speed ratio i

End

Chain load(Actual load)FR is known

Service factor Ks

Reconsider

Speed factor Kv

Sprocket teeth factor Kc

Determine the chain size

Determine the chainand sprocket

Calculate the chain length L (number of links)

Decide the method of lubrication from the number of revolutions of the small sprocket

Procedure 3

Procedure 2

Check distance between shafts and max. shaft diameters.

F’R (or F’m) Max.allowable tension

N

Y

<=

82


SELE

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N

FR = 16.7 (kN)

Procedure 1 :

Procedure 2 : Calculate design chain tension F’R

F’R = FR × Ks × Kv × Kc

= 16.7 × 1.3 × 1.06 × 1.27= 29.2 (kN)

Calculate the Roller Chain speed V.

This is less than 50 m/min, so slow speed selection can be used.

66

94

Drive Roller Chain(RS120)

Reducer ratio(i = 30)

Sprocket 15T(PCD: 183.25)

Sprocket 38T(PCD: 461.37)

1500(center distance)

Machine : Conveyor drive Chain load : 16.7 kN (1700 kgf)Motor : 11 kWReducer ratio : 30 High speed shaft : 50 r/min, shaft diameter 66 mmLow speed shaft : 20 r/min, shaft diameter 94 mmDistance b/w shafts : 1500 mm Starting frequency : 4 times/dayType of shock : Some shock involved

Example based on the slow speed selection

FR = 1700 (kgf)

Procedure 2 : Calculate design chain tension F’R

F’R = FR × Ks × Kv × Kc

= 1700 × 1.3 × 1.06 × 1.27= 2975 (kgf)

V =1000PN’n = = 28.6 m/min < 50 min

100038.1 × 15 × 50

SI International Units (Gravimetric Units)

Service factor Ks = 1.3 ……………… some shock (Table 2)Speed factor Kv = 1.06 ……………… V = 28.6 m/min (Table 3)Sprocket teeth factor Kc = 1.27 …… N’ = 15T (Table 3)

Procedure 3 : Slow speed selection for RS Roller ChainRS120 can be used since the maximum allowable tension of 30.4 kN (3100 kgf) is larger than the design chain tension 29.2kN (2975 kgf). The driver sprocket is RS120-15T B-type (Max. shaft diameter 80 mm > Driver shaft diameter 66 mm, there-fore acceptable) provided it has hardened teeth. The driven sprocket is RS120-38T B-type, provided the boss diameter ismanufactured to meet the diameter of the driven shaft (94 mm).

Procedure 4 : Number of chain links

Procedure 5 : Lubrication method is by drip or brush

L =2

N + N' + 2C + 6.28N – N'( )

2

C

= 105.58 links → 106 links Distance between shafts = 1508 mm

=2

38 + 15 + 2 × 39.37+ 6.2838 – 15( )

2

39.37C =

38.101500 = 39.37

83

Method of selection that applies for ordinary transmis-sion where the chain speed V is less than 50 m/min(1) Applicable when making a more economical selection

for RS and SUPER chain. (2) Applicable when selecting RS-HT, SUPER-H and UL-

TRA SUPER. (3) In the case of severe conditions, such as transmissions

with large impact, particularly from large loads and sideforces, please use F-CLs and 2-pitch offset links.

(4) When using offset links and standard connecting links,allow for the following strengths as a percentage of themaximum allowable tension.M-type CL : 100%F-type CL : 100%2-pitch offset link (2POL) : 100%(Ref)1-pitch offset link (OL) : 65%

(5) The slow speed selection is an economical method of

selection that uses the complete kW rating of the rollerchain and should only be selected upon properly ascer-taining the conditions of transmission. In particular it isvital that sufficient attention is given to shock loads.

(6) Chain tension becomes large when using SUPER, RS-HT, SUPER-H, ULTRA SUPER chains, so avoid usingcommercially available sprockets made of cast ironsince the strength of the rim and boss portions will, incertain cases, be insufficient. RS standard sprockets A type and B type as well as Ctype provide sufficient strength. (Materials such asSS400, S35C, SC450, etc. have to be used)

(7) For the high speed side, use a sprocket with a harden-ing process carried out on the surface of its teeth.

(8) Since the bearing pressure will be extremely large,make certain to lubricate the chain.

Procedure

Calculate the chaintension Fms

Starting frequency is more than

6 times/day (8hrs)

Data required

From inertia ratio R

Shock factor: K

Adopt the larger value

Confirmation of the motor characteristics

Calculate the chain tension from the load

Confirm the mass M (Weight W) of the load

Service factor: Ks

Speed factor: Kv

Calculate the chain tension from the motor

Starting torque: Ts Stalling torque: Tb

Calculate the chaintension Fmb


Calculate the designchain tension F’ms (or F’mb)

From the time for accel-eration, deceleration

Time for acceleration ts Time for deceleration tb

Calculate the chaintension Fs

Calculate the chaintension Fb


Speed factor: Kv

Sprocket tooth factor: Kc

Calculate the designchain tension F’s (or F’b)

Determine the small sprocket N’, large sprocket N

Confirm the distance between shafts

Confirm the largest shaft diameter

Determine the chain and sprocket

Calculate the chain length L (number of links)

Determine the lubrication method from the numberof revolutions of the small sprocket


Calculate the design chaintension F’w

END

Determine the chain size where a large tension forF’w, F’ms (or F’mb), F’s (or F’b) Max. allowable tension

N

Y

<=

7. SLOW SPEED SELECTION (SPECIAL)

84


SELE

CTIO

N

8. Selection Method for Lifting TransmissionsProcedure

Confirmation of data required for selection

Procedure 1

Procedure 2

Procedure 3Procedure 4

Confirmation of motor characteristics

Calculate chain tension from load Calculate the chain tension from the motor

From inertia ratio R

Shock factor: K

Service factor: Ks

Time for acceleration: ts

Choose greater value

Calculate the chain tension Fs

Calculate the design chain tension F’s (or F’b)

Imbalance coefficient Ku

From the acceleration, deceleration time

Determine the chain size where a large tension for F’w, F’ms (or F’mb),

F’s (or F’b) <= Max. Allowable Load

End

Y

N Starting frequencyMore than 6 times/day (8hrs)

Speed factor: Kv


Calculate the design chain tension F’ms (or F’mb)Calculate the design

chain tension F’w

Calculate the chain tension Fb

Time for deceleration: tb

Speed factor: Kv

Starting torque: Ts



Determine the sprocket

Confirm that the sprockets fit the shafts. Determine the method of lubrication.

Calculate the chain tension Fms

Calculate the chain tension Fmb

Stalling torque: Tb


Compare the difference in mass between the load and the counterweight,

then calculate the following using the greater mass M {Weight W}

There are many examples of where chainis used for lifting. By making use of RollerChain features, choosing the right chainand following the important points, it ispossible to use Roller Chain for liftingtransmissions. A model lifting applicationis illustrated below. (Please give specialconsideration to safety devices)

Balancing

End Fittings Roller Chain

End Fittings

Counterweight

Slider

Ascending/Descending Equipment (1)

Counterweight

End Fittings

End Fittings Roller Chain

Roller Chain Reducer


Reducer

Roller Chain

End Fittings (4 places)Fork


Reducer

Roller Chain

Counterweight

End Fittings

End Fittings

0Roller Chain Selection for Lifting Applications(1) When making your selection, calculate the tension from the load and from the motor and apply the greater of the

two. As a rule of thumb, if the greater value is lower than the Max. Allowable Load of the chain you are thinking ofchoosing, then it may be selected.

(2) If there are any laws or guidelines for chain selection, check and calculate accordingly. Make sure to follow themanufacturer’s selections and select the safer of the two selections.

(3) The chain speed should be less than 50m/min.(4) Use F-Type (Semi Press-fit) connecting links. Offset links cannot be used.(5) Lubricate the chain joints as much as possible after you reduce the loads. Sufficient lubrication is also required at

end fittings (end bolts and connecting links, etc.) and connecting parts, etc.

Examples of Lifting Transmissions

End FittingsEnd bolts and ex-clusive connectinglinks for end boltsare stocked for RSRoller Chain.

Safety Precautions0Clear the area of all

personnel whenlifting Roller Chain.0Install safety equip-

ment to preventinjuries and damageto equipment in theevent of Roller Chainbreakage.0Inspect and replace

worn Roller Chainperiodically.

85

Example of Selection for Lifting Transmission Roller Chain

SI International Units (Gravimetric Units)

F’w = Fw × Ks × Kv × Kc × Ku

= 29.4 × 1.3 × 1.02 × 1.28 × 0.6

= 29.9 (kN) ……………………………………… 1

Design chain tension

Converted moment of inertia of the loaded prime mover output shaft

Moment of inertia of the prime mover output shaft (I), Im = 0.015 (kg·m2)

IR= M × ( V )2

2πn1

= 3000 × ( 6.2 )2

= 0.00130 (kg·m2)

2 × π × 1500

Inertia ratio (R) R = IR = 0.00130

Im 0. 015

= 0.087

Converted moment of inertia of the loaded prime mover output shaft

Moment of inertia of the prime mover output shaft

GD2m = 0.06 (kgf·m2)

GD2R = W × ( V )

2

πn1

= 3000 × ( 6.2 )2

= 0.00519 (kgf·m2)

π × 1500

Inertia ratio (R) R = GDR

2 = 0.00519

GD2m 0.06

= 0.087

F’w = Fw × Ks × Kv × Kc × Ku

= 3000 × 1.3 × 1.02 × 1.28 × 0.6

= 3055 (kgf)……………………………………… 1


Procedure 1: Confirmation of motor characteristics

Rated torque: Tn = 0.024 (kN·m) Starting torque: Ts = 0.061 (kN·m)Stalling torque: Tb = 0.073 (kN·m)Motor moment of inertia: Im = 0.015 (kg·m2)

Procedure 2: Calculate chain tension from load

Procedure 1: Confirmation of motor characteristics

Rated torque: Tn = 2.4 (kgf·m) Starting torque: Ts = 6.0 (kgf·m)Stalling torque: Tb = 7.2 (kgf·m)Motor GD2: GD2m = 0.06 (kgf·m2)

Procedure 2: Calculate chain tension from load

Chain tension Fw = M

= W × = 3000 × = 29 .4 (kN)9.806651000

G1000

Chain tension Fw = W = 3000 (kgf)

Procedure 3: Calculate the chain tension from the motor Procedure 3: Calculate the chain tension from the motor

As there is no play (R < 0.2) in the system (R = 0.2), the coefficient of shock K = 0.23

Chain speed V = 6.2 m/min …………… Speed factor: Kv = 1.0214-tooth sprocket for lifting ……………… Sprocket tooth factor: Kc = 1.28Minimal shock …………………………… Service factor: Ks = 1.3For double strand lifting ………………… Imbalance load coefficient Ku = 0.6

Sprocket: 14T (PCD : 142.68)


Speed Reducer (i = 60)

Motor with brake

Roller Chain: SUPER 100


Roller Chain: SUPER 120 (Chain Speed = 6.2 m/min)


M = 3000 kg (W = 3000 kgf)

You are planning to use a lifting transmission machinelike the one on the left, and you are thinking of usingSUPER 120 for the lifting and SUPER 100 for the drivechain. We will now select a chain for drive and for lift-ing.

Motor with brake: 3.7 kW

Motor shaft rotational speed: n1 : 1500 r/min

86


SELE

CTIO

N

( )

Starting torque: Ts = 0.061 (kN·m)

Stalling torque: Tb = 0.073 (kN·m)

= 0.061 × 60 × × 1000/

= 91.6 (kN)

Chain tension from starting torque

Chain tension from stalling torque


Fms = Ts × i × × 1000/3014

171.222

Fmb = Tb × i × × 1000 × 1.2/

F’mb = Fmb × K × Kv × Kc × Ku

3014

3014

= 0.073 × 60 × × 1000 × 1.2/

= 131.6 × 0.23 × 1.02 × 1.28 × 0.6

= 23.7 (kN) …………………………………

3014

Starting torque: Ts = 6.0 (kgf·m)

Stalling torque: Tb = 7.2 (kgf·m)

= 6.0 × 60 × × 1000/(171.22/2)

= 9011(kgf)

Chain tension from starting torque

Chain tension from stalling torque

Fms = Ts × i × × 1000/(d/2)3014

Fmb = Tb × i × × 1000 × 1.2/(d/2)3014

3014

= 7.2 × 60 × × 1000 × 1.2/(171.22/2)

= 12976 (kgf) = 131.6 (kN)

3014


F’mb = Fmb × K × Kv × Kc × Ku

= 12976 × 0.23 × 1.02 × 1.28 × 0.6

= 2338 (kgf) ……………………………….2 2

( )

d2

( )d2

171.222( )

Procedure 4: Calculate the chain tension from motoracceleration and deceleration.

Procedure 4: Calculate the chain tension from motoracceleration and deceleration.

Use the greater value of Fmb to calculate chain tension as Fmb > Fms.

Because tb is smaller than ts, chain tension from motor deceleration Fb is greater than that of acceleration, so Fb should be used.

Working torque

Load torque

Motor acceleration time

Motor deceleration time

Chain tension from acceleration

Tm = =

TR= ×

Ts + Tb

20.061 + 0.073

2

= 0.067 (kN·m)

M × d2 × 1000 × i

3000 × 171.22 G

G

G1000

10002 × 1000 × 60 × 3014

=

= 0.02 (kN·m)

Working torque

Load torque

Tm = =

TR=

Ts + Tb

26.0 + 7.2

2

= 6.6 (kgf·m)

W × d2 × 1000 × i

3000 × 171.22

2 × 1000 × 60 × 3014

=

= 2.0 (kgf·m)

ts = (Im + IR) × n1

375 × (Tm – TR)

375 × (0.067 – 0.02)(0.015 + 0.00130) × 1500

× × 4

tb = (Im + IR) × n1

375 × (Tm – TR) × × 4

× × 4

= 0.054 (s)

= 0.029 (s)

= 40.1 (kN)

=

375 × (0.067 + 0.02)(0.015 + 0.00130) × 1500 × × 4 =

Motor acceleration time

Motor deceleration time

ts = (GD2m + GD2

R) × n1

(GD2m + GD2

R) × n1

375× (Tm – TR)

375 × (6.6 – 2.0)(0.06 + 0.00519) × 1500

tb =375 × (Tm + TR)

= 0.057 (s)

= 0.030 (s)

=

375 × (6.6 + 2.0)(0.06 + 0.00519) × 1500 =

×

Fb = + FW

+ 29.4 =

M × Vtb × 60 × 1000

3000 × 6.20.029 × 60 × 1000

Chain tension from acceleration

= 4054 (kgf)

Fb = + FW

+ 3000 =

W × Vtb × 60 × G

3000 × 6.20.030 × 60 × G

1000

1000

1000

1000

G

G

G

87

Design chain tension F’b = Fb × Kv × Kc × Ku

= 40.1 × 1.02 × 1.28 × 0.6

= 31.4 (kN) ……………………

Design chain tension F’b = Fb × Kv × Kc × Ku

= 4054 × 1.02 × 1.28 × 0.6

= 3176 (kgf) …………………..3 3

Comparing F’b (31.4 kN) with the maximum allowable load of SUPER 120 chain (39.2 kN), F’b < 39.2 kN. Therefore, this chain may be selected. The drive chain is

This value is less than the maximum allowable load of SUPER 100 chain, so it may also be used.

F’b × = 31.4 × 171.22303.75

dd’

= 17.7 kN < 30.4 kN

Comparing F’b (3176 kgf) with the maximum allowable load of SUPER 120 chain (4000 kgf), F’b < 4000 kgf. Therefore, this chain may be selected. The drive chain is

This value is less than the maximum allowable load of SUPER 100 chain, so it may also be used.

F’b × = 3176 × 171.22303.75

dd’

= 1790 kgf < 3100 kgf

Weight

θ : Chain wrapping angle

N: No. of teeth

To

(Conclusion)

It is possible to use SUPER 120 for lifting applications and SUPER 100 for drive applications. However, if operational restrictions occur

due to overload, the chains will be subjected to the following loads: Drive chain: Fd = 0.073 × 1000 × 60 × 2 = 61.4 kN (6266 kgf) (per

strand), Fd × Ku = 61.4 kN × 0.6 = 36.8 kN (3757 kgf), Lifting chain: Fd × 303.75 = 65.3 kN (6657 kgf).

In this case, since there is a possibility of chain plastic deformation, increase the chain size by selecting SUPER 120-2 for lifting

transmission and SUPER 120 for drive transmission, just to be safe.

142.68

171.22

Weight required for counterweight to prevent sprocket tooth-jumpingwhen using Roller Chain in lifting transmission applications.

Tk : Minimum weight tension (Minimum back-tension)

To : Roller Chain tension

0 : Sprocket minimum pressure angle

2α : Sprocket dividing angle 2α =

K : Engaging No. of teeth K = × N …

0 = 17° – 64°N

360° N

θ360°

θ 360°

Tk = To × {sin 0/sin (0+ 2α)} K–1

Round-up to the nearest whole number to be safe.

If To = 1100 kgf, N = 13T, and θ = 120°, then

0 = 17°– = 17° – = 12.07764° N

64°13

2α = = = 27.692360° N

120°360°

360° 13

K = × N = × 13 = 4.33 … K = 4

Tk = 1100 × {sin12.077/sin (12.077 + 27.692)}4–1 = 38.5 (kg)

Accordingly, tooth-jumping will not occur if a 39 kg weight is used. However,

this will change depending on the layout and amount of wear on the Roller

Chain and sprocket teeth. Please use the above as a reference.

When comparing the calculated design chain tensions in Steps q, w, and e, note that Fb in Step e is the greatest.

88


SELE

CTIO

N

9. Selection by Temperature

9.1 RS Roller Chain Selection by Temperature

Method of selection that allows for a decrease in strength depending on temperature. Additionally, lubrication should becarried out using a suitable lubricant according to the operating temperature.1) Problems of roller chain transmission at high temperatures

1) Increase in wear from a decrease in hardness2) Increase in elongation from softening3) Poor articulation and an increase in wear from depletion/carbonization of oil4) Increase in wear and poor articulation from scaling

2) Problems of roller chain transmission at low temperatures1) Decrease in shock resistance from brittleness at low temperatures2) Solidification of lubricant3) Poor articulation from frost and water adhesion

Table 10 Standard for transmission performance of RS Roller Chain for high and low temperatures.

TemperatureKT Cold Resistant

type*RS Roller Chain

RS60 and under RS80 and over

—

—

—

Unusable

Catalog value × 1/4


Catalog value

Catalog value



Unusable

—

—

Unusable




Catalog value

Catalog value



Unusable

Unusable



Catalog value

Catalog value

Catalog value

Catalog value

Unusable

—

—

—

Below –60°C(–76°F)

–60°C ~ –50°C(–76°F ~ –58°F)

–50°C ~ –40°C(–58°F ~ –40°F)

–40°C ~ –30°C(–40°F ~ –22°F)

–30°C ~ –20°C(–22°F ~ –4°F)

–20°C ~ –10°C(–4°F ~ +14°F)

–10°C ~ +60°C(+14°F ~ +140°F)

+60°C ~ +150°C(+140°F ~ +302°F)

+150°C ~ +200°C(+302°F ~ +392°F)

+200°C ~ +250°C(+392°F ~ +482°F)

Above +250°C(482°F)

Note: 1. *KT: Made-to-order2. Note that the ambient temperature and the temperature of the chain itself are different.

9.2 Method of selection of SS / NS Stainless Steel Roller Chain for high temperatures (+400°C / +752°F and above)Chain strength falls as the temperature of the chain becomes high. The temperature limit for use is decided by the tempera-ture of the chain itself. If your operation runs at temperatures higher than +400°C (+752°F), consult the manufacturer beforemaking your chain selection. Note that the chain cannot be used in temperatures in excess of +700°C (+1,292°F). Thechain speed should be less than 50 m/min for selections by temperature.Changes and important points regarding high temperature environments:

1) In order to prevent poor articulation and poor roller rotation from heat expansion, clearances in each part need to bechanged.

2) It is possible that the chain will break (creep rupture) at lower loads when the temperature becomes higher.

10. Special Selection Method for Corrosion-Resistant Roller ChainSlow speed selection (selection by max. allowable load) is employed for Corrosion-Resistant Roller Chain Selection.

1) The maximum allowable load of some Corrosion-Resistant Roller Chain is lower than that of Standard RS Roller Chain.2) Avoid using offset links wherever possible.3) The chain speed should be less than 50 m/min for selections made in “Special Selection Method.”4) Refer to the following page when substances such as acids, alkalis or chemicals come into contact with the chain.5) Selection formula

Max. chain working load Max. allowable load of the chain× Service factorKs

× Speed factorKv

× <Sprocket teeth factor

Kc =

89

11. Anti-Corrosion Reference Guide for Corrosion Resistant Roller Chain (Table 11)

Since corrosion resistance varies substantially according to operating conditions, this chart should not be considered as aguarantee. Using this chart as a reference, make sure to check the corrosion resistance of the chain in advance accordingto the actual operating conditions before deciding on the type of chain to use.

Chemical/FoodstuffCorrosion Resistant Roller Chain

AcetoneOil (Plant, Mineral)Linseed OilSulphur Dioxide (wet)Alcohol (Methyl, Ethyl, Propyl, Butyl)Ammonia WaterWhiskyEther (Ethyl Ether)Zinc ChlorideAmmonium Chloride 50% Boiling PointPotassium Chloride SaturatedCalcium Chloride SaturatedFerric ChlorideSodium ChlorideHydrochloric AcidChlorine Gas (dry)Chlorine Gas (wet)Chlorine Water Oleic AcidSeawaterSodium Perchlorate 10% Boling PointHydrogen PeroxideGasolinePotassium Permanganate Saturated 20°CFormic AcidMilkCitric AcidGlycerolCreosoteChromic AcidKetchupDeveloping Solution (Photo)Synthetic DetergentCoffee BoilingCola SyrupAcetic AcidSugar Solution

Sodium HypochloriteSodium CyanideCarbon Tetrachloride (dry)Potassium DichromateOxalic AcidTartaric AcidNitric AcidAmmonium Nitrate Saturated Boiling

20°C20°C

100% 20°C20°C

20°C20°C20°C

50% 20°C

20°C20°C

5% 20°C5% 20°C2% 20°C

20°C20°C

20°C20°C

30% 20°C20°C

50% 20°C20°C

50% 20°C20°C20°C

5% 20°C20°C20°C

10% 20°C20°C

10% 20°C20°C20°C

10% 20°C10% 20°C10% 20°C5% 20°C

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Calcium Hypochlorite (Bleaching Powder) Available chlorine 11 - 14% 20°C

Chemical/FoodstuffCorrosion Resistant Roller Chain

Potassium NitratePotassium Nitrate 25% Boiling PointVinegarPotassium Hydroxide (Caustic Potash)Calcium Hydroxide (Slaked Lime) 20% BoilingSodium Hydroxide (Caustic Soda)Stearic Acid 100% Boiling PointSoft DrinkCarbolic AcidPetroleumSoapy WaterCarbonated WaterSodium Hydrogen CarbonateSodium Carbonate Saturated Boiling PointSodium Thiosulfate 25% Boiling PointTurpentine OilKeroseneVarnishConcentrated Nitric AcidConcentrated Nitric Acid 65% BoilingLactic AcidHoney, MolassesParaffinBeerPicric Acid Saturated 20°CFruit JuiceBenzeneBoric acidFormalin (Formaldehyde)MayonnaiseWaterVegetable JuiceLardButyric AcidHydrogen Sulfide (dry)Hyrdogen Sulfide (wet)Sulphuric AcidZinc Sulfate 25% Saturated 20°CAluminium Sulfate Saturated 20°CAmmonium Sulfate Saturated 20°CSodium Sulfate Saturated 20°CMalic AcidPhosphoric AcidPhosphoric AcidWine

25% 20°C

20°C20% 20°C

25% 20°C

20°C20°C20°C20°C

20°C

35°C20°C

65% 20°C

10% 20°C

20°C20°C

20°C20°C

50% 100°C40% 20°C

20°C

20°C

20°C

5% 20°C

50% 50°C5% 20°C

10% 20°C20°C

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90

MAI

NTEN

ANCERoller Chain Maintenance

� Cautions on Roller Chain Maintenance ………………………………91

� How to Cut Roller Chain …………………………………………………92

� How to Connect Roller Chain……………………………………………93

� Roller Chain Lubrication …………………………………………………94

� Roller Chain Installation and Layout ……………………………………96

� Chain Test Run……………………………………………………………98

� Roller Chain Inspection …………………………………………………98

� Cautions on Use in Special Environments……………………………102

� Roller Chain Drive Troubleshooting and Problem-Solving …………103

� Ordering Roller Chain …………………………………………………107

91

USE CARE TO PREVENT INJURY

• Do not carry out any rework on the chain under any circumstances.· Do not anneal any parts of the roller chain.· Do not wash roller chain with acidic or alkaline solutions. This may result in cracking.· Avoid electroplating of the roller chain and its parts since it may lead to cracking caused by hydrogen em-

brittlement.· Avoid welding on the chain. This will decrease the strength of the chain and cause cracking.· If parts are heated or cut by a torch, the links beside the affected part should be removed and discarded.

• Avoid replacing only parts that are partially worn or damaged with new parts. The whole chain should be re-placed in such cases.

• Install barriers and clear the area of all personnel below the items being lifted when using roller chain in liftingapplications.

• Install safety devices (safety covers, etc.) on all roller chain and sprockets.

• When connecting, disconnecting, maintaining & inspecting and lubricating,· Carry out all steps according to our catalog or manual. · Always lock out the power switch and prevent accidental activation of power in advance.· Connect the chain firmly to prevent unexpected movement of chain and parts.· Correctly use pressing equipment and other exclusive tools for disconnecting / connecting.· Make sure to wear suitable work clothes and protective equipment (safety glasses, gloves and safety

shoes).· Ensure that only skilled people carry out chain replacement.

Comply with the following to avoid serious personal injury.

0 WARNING

• Only handle chain after understanding its construction and specifications.

• Please inspect in advance whether any damage was caused during transportation when installing the chain.

• Make sure to carry out periodical maintenance and inspection of the chain and sprockets.

• Chain strength differs depending on the manufacturer. Ensure that TSUBAKI products are used when selec-tion is carried out based on TSUBAKI’s catalog.

• The minimum tensile strength is the minimum load that will cause the chain to fail when such a load is appliedonce to the chain. This is not an allowable load.

Comply with the following to prevent accidents.

0 NOTE

92


MAI

NTEN

ANCE

1.2 Using a chain breaker1)For riveted type roller chain, grind down one end of the

outer link plate’s two pins(same side) to the surfaceof the link plate. (Same as1.1) Remove the cotterpin for cotter pin typeroller chain.

2)Remove the two pins fromthe same outer link plate.Check to make sure thatthe bushing where the pinwas removed has notcome loose or deformed.Then make sure not touse this part if it has comeloose or deformed.

1.3 How to cut Poly Steel Chain1)Support the outer link plate of the chain in the cradle and

push down on the pinhead with the exclusive punch.Then lightly hit the head of the punch using a hammer.

2)Avoid using excess force on the engineering plastic part,as there is a possibility of causing damage.

1. How to Cut Roller ChainIf the chain you purchased is either a unit length (3,048mm) or on a reel, it is necessary for you to cut the chain tothe necessary length.

How to cut Roller Chain

1.1 Using a chain vice and punch1)For riveted type roller chain, grind down one end of the

outer link plate’s two pins (same side) to the surface ofthe link plate. Be careful of the chain overheating duringthe grinding process. In the case of Lambda Chain,grinding should be carried out slowly so as not to over-heat the bushings in particular. This process is unneces-sary for Poly Steel Chain as there are no rivets.

2)Remove the cotter pin for cotter pin type roller chain.

3)As shown in the photo, put the roller chain into the grooveof the chain vice (refer to Peripheral Tools section) andtighten the vice to secure the roller to be disassembled.(1) Please follow 1.3 and 1.4 for Poly Steel Chain and

Lambda Chain.(2) For multi-strand SUPER Roller Chain, put the far end

roller into the groove of the chain vice.

4)Place the appropriate pri-mary punch (refer toPeripheral Tools section),according to chain size,on the head of the groundpin, and then hit the headof the primary punch witha hammer. Make sure tohit the pins alternatively toensure the pins are re-moved evenly and at thesame time. Continue totap the pin until just be-fore the pin is removedfrom the outer link plate.

5)Use the secondary punch (refer Pg. 71) to remove thepin completely from the outer link plate. Check to makesure that the bushing where the pin was removed has notcome loose or deformed. Then make sure not to use thispart if it has come loose or deformed.

Using a chain vice and punch

Using a chain breaker

Primary punch

Outer link plate

Vice

Fig. 3 Setting the roller chain in the chain vice.

Cradle

Fig. 6 Poly Steel Chain set in the cradle

Setting SUPER RollerChain

Fig. 4 Tapping the pin withthe primary punch.

0Safety Precautions(1) Make sure to use a grinder when grinding the riveted

portion of one end of the rivet-type pin. If it is extractedwithout being ground first, more time and effort will bespent, or the chain will be damaged.

(2) Do not reuse any removed parts.

Fig. 5 Cutting chain using achain breaker

Fig. 7 Cutting Poly Steel Chain

Roller Chain Installation & Maintenance

Exclusivepunch

Cradle

Fig. 2 Grinding the pin ends

The riveted portion of the pin is grounddown to the surface of the link plate.( )

Fig. 1 Rivet-type roller chain0Safety Precautions(1) A chain breaker (refer Peripheral Tools section) is a tool

made for cutting chain, and can cut roller chain that is seton a machine. In this case, it is necessary beforehand tosupport the load on the roller chain and the weight of theroller chain itself to prevent it from falling after being cut.

(2) Do not reuse any removed parts.

93

1.4 How to cut Lambda Chain1)Support the chain with a chain vice or something similar,

and grind down one end of the outer link plate’s two pins(same side) to the surface of the link plate. Be careful ofthe chain overheating during the grinding process.Grinding should be carried out slowly so as not to over-heat the bushings in particular.

2)The chain is then cut using an exclusive cradle (refer toPeripheral Tools section) and an RS Roller Chain punch.Important points for cutting are outlined in 4) and 5) in1.1. However, please use an exclusive cradle instead ofa vice.

3)Hit the pins alternatively when removing the pins with apunch. Take extra care not to remove or cause any dam-age to the bushing. Make sure not to use this part if thebushing has come loose or been damaged.

2. How to Connect Roller Chain

2.1 When connecting chain on sprocket teethWhen connecting or disconnecting roller chain, it is conve-nient to use the sprocket teeth. Please carry out the follow-ing steps.1)Wind the chain around one of the sprockets such that

both ends of the chain are facing each other on thesprocket.

2)Apply oil and grease to the connecting link.3) Insert the connecting link in the two end links of the

chain.4) Insert the connecting link plate of the connecting link and

fasten the plate using the clips/cotter pins or spring pinssupplied.

5)When using a press-fit connecting link or F-Type (SemiPress-fit) connecting link, insert the connecting link plateby tapping it with a hammer until it moves into position.Then fasten it usingthe clips/cotter pinsor spring pins sup-plied.

6)When using thesprocket teeth to con-nect the chain, takecare not to damagethe teeth, particularlywhen using a castiron sprocket.

2.2 When connecting between shaftsIf the sprocket cannot be used due to the layout, pleasecarry out the following steps.1)Wind the chain around the sprockets and pull the chain

ends together using a chain puller (refer to PeripheralTools section) or wire.

2)Apply oil and greaseto the connecting link.

3) Insert the connectinglink in the two endlinks of the chain.

4) Insert the connecting link plate of the connecting link andfasten the plate using the clips/cotter pins or spring pinssupplied.

2.3 Clips and Cotter Pins1)Clips

Clips are used for small size roller chain (under RS60)connecting links. When connecting the chain, the clipshould be inserted securely into the slot of the pin on theconnecting link after the connecting plate has been in-serted on the pin. If the legs of the clips are spread toofar they will not catch properly and will fall of during oper-ation of the chain causing acci-dents. Care should be takenwhen inserting them. The direc-tion in which the clip is installedis generally opposite to the di-rection of travel for the chain asshown in Fig.10.

2)Cotter PinsTSUBAKI’s cotter pins are heat treated. The legs of thecotter pins should be bent to an angle of approx. 60 de-grees. Cotter pins should not be reused, and commer-cially available cotter pins other than those produced byTSUBAKI should be avoided.

Fig. 8 Connecting on a sprocket

Direction of travel

Fig. 10 Direction inwhich the clipis installed

Fig. 9 Connecting between shafts

Fig. 11 Angle of legs for cotter pins

Cotter pin

T-pin

Z-pin

0Safety Precautions(1) Avoid using offset links wherever possible by varying the

center distance between shafts or using an idler. (2) In the case of pins and connecting link plate holes being

press-fit type with F-type or other connecting links, pleaseavoid widening the connecting link plate hole or narrowingthe pin diameter to make connecting easier, as this willresult in a reduction in roller chain strength causing anaccident.

(3) The outer link of cotter pin type roller chain can be usedas a substitute for the connecting link. However, due tothe press fit connection, the outer link plate must becarefully driven onto the pin parallel to the connecting link.If the connecting link plate is installed without due care toparallelism, chain damage or increased wear may result.

(4) Do not reuse press fit type link plates that have beendetached, as the detachment results in a reduction instrength.

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3. RS Roller Chain LubricationOne of the most important factors in getting the best possible performance from your roller chain is proper lubrication.Particularly when performance requirements become more severe, the need for lubrication becomes more and more impor-tant. No matter how well a transmission system is designed, if it is not properly lubricated its service life will be reduced. Sinceservice life may be completely used up in such a short period of time, depending on the operating conditions, please payparticular attention to lubrication.1)The main purpose of lubricating and greasing is to limit wear elongation and prevent corrosion of the chain. Wear elonga-

tion arises from wear between the pin and bushing when the chain articulates. 2)TSUBAKI roller chain is pre-lubricated before packing. Since high-grade oil with a rust protection and lubricating effect is

used, it limits the amount of wear elongation during the initial operation and ensures wear resistance. 3)Lubrication on the supplied chain should not be wiped off with a cloth or washed off with solvents such as detergents.

3.1 Lubrication Position1)Since wear elongation is caused by wear between the pins and bushings, lubrication must be carried out on these parts. 2)The clearance between the outer link plate and the inner link plate on the slack side of the chain should be lubricated with

oil. The clearance between the bushing and the roller should also be done at the same time.

3.2 Lubrication for Lifting chain1)Although there is generally no slack side, lubrication must be done while the chain is not loaded.2)For roller chain that does not articulate, grease should be applied thickly for corrosion preventive purposes. The end fit-

ting connection should also be well lubricated, even if there is no movement.3)Since there is a possibility that rain or snow may cause loss of lubrication or corrosion from outdoor use, some protective

cover should be attached the chain. If this occurs, moisture must be completely removed and the chain must be well lu-bricated and covered with thick grease.

3.3 Recommended Lubrication1)SAE No. (Table 1)

2)Lubrication in high or low temperature environments.Please consult Tsubaki.

Fig. 12 Lubrication Position

Lubricating System A I · A II · B C

Ambient Temperature

Chain No.–10°C ~ 0°C

(+14°F ~ +32°F)0°C ~ +40°C

(+32°F ~ +104°F)+40°C ~ +50°C

(+104°F ~ +122°F)+50°C ~ +60°C

(+122°F ~ +140°F)–10°C ~ 0°C

(+14°F ~ +32°F)0°C ~ +40°C

(+32°F ~ +104°F)+40°C ~ +50°C

(+104°F ~ +122°F)+50°C ~ +60°C

(+122°F ~ +140°F)

RS50 and under SAE10W SAE20 SAE30 SAE40SAE10W SAE20 SAE30 SAE40

RS60 · 80SAE20 SAE30 SAE40

SAE50RS100SAE20 SAE30 SAE40 SAE50

RS120 and over SAE30 SAE40 SAE50

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LubricationSystem Quantity of Oil

A

I

Oil is applied with an oilfiller or brush in the gapbetween the pin link andinner link clearances onthe slack side of thechain.

Oil should be applied at fixed intervals, usuallyabout every eight hours, or as often as necessaryto prevent the bearing areas from becoming dry.

* An automatic lubricator is also available for yourconvenience. Please consult Tsubaki for moredetails.

II

A simple case can beused. Oil from the oilcup is supplied by dripfeeding.

Apply about 5 - 20 drops of oil per minute forevery strand of chain. Actual quantity depends onthe chain speed.

B

The chain is installed ina leak-free casing.

Chain should be submerged in oil 6 to 12 mm. Ifthe oil depth “h” is too large, the composition ofthe oil may change due to heat generated (morethan +80°C/+176°F) and lose some of itseffectiveness.

Install the slinger disc ina leak-free oil casing. Oilis splashed on thechain. The circumfer-ence speed should beat least 200 m/min. If thewidth of the chain isgreater than 125 mm,attach slinger discs toboth sides.

The bottom of the slinger disc should be loweredto a position 25 mm from the surface of the oil.The chain should not pass through the oil.

C

Use a leak-free casing.A pump is used tocirculate the oil, which isthen cooled. Thenumber of supply holesshould equal Z+1,where Z is the umber ofstrands of chain.

Drip Lubrication

Oil Bath Lubrication

Lubrication by Slinger Disc

Lubrication using a Pump

3.4 Lubrication Systems and Methods (Table 2)

Examine the pins and bushings after removing the chain to confirm the effectiveness of the lubrication. Any scratches or reddish-brown color appearing on their surfaces indicates that the system is not being adequately lubricated.

Chain Type

Chain Speed(m/min)

Chain No. RS60 and under

#80#100

RS160 and over

#120#140

RS

SUPER

RS

SUPER

RS

SUPER

~ 800

~ 1,100

~ 500

~ 1,400

500

800

300

1,100

1.0

2.0

3.0

1.5

2.5

3.5

2.5

3.5

4.5

4.0

5.0

6.0

300 or less

500 or more

Method

0Make sure chain oper-ation is suspendedwhile lubricating.

Oil quantity guide for each supply hole (L/min)

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In the following cases, the slack should be about 2% of thespan.

(1) Vertical drive or close to vertical drive (tensioner is re-quired)

(2) Center distance between two shafts is greater than 1m.

(3) Chain is operated under heavy load and frequentstarts.

(4) Chain drive is suddenly reversed.

3)Roller chain tends to slightly elongate (about 0.05%) aftera few dozen hours following commencement of use. Thisis caused by all the contact surfaces trying to become fa-miliar with each other. This elongation causes excessslack, so the amount of slack needs to be adjusted ac-cordingly. Please use a tensioner if the system has beendesigned for it. If, on the other hand, a tensioner is un-suitable, adjustment of the slack is achieved by movingthe shafts. The chain will have now been used well, soelongation will significantly decrease.

4.4 Horizontal Precision and Parallelism of the ShaftsInstallation accuracy of the sprockets greatly affects thesmoothness of the roller chain drive and also influences thewear life of the roller chain.Make sure to carry out the following important points cor-rectly. 1)Check the horizontal specification with a level. Adjust the

shafts so that they are horizontal to within ± .

2)Check the parallelism with a scale. Adjust the shafts sothat they are parallel to within ± = ( ).A – B

L1

300

1300

4. RS Roller Chain Installation and Layout

4.1 Speed Ratio and Chain LapThe speed ratio of roller chain can range up to 7 : 1 undernormal operating conditions. However, a speed ratio of 10 :1 is possible if the speed is very slow. Chain lap on thesmall sprocket must be at least 120° and at least 90° in thecase of lifting chain.

4.2 Distance between shaftsSprockets can be separated by any distance as long astheir teeth do not touch. Optimum distance is 30 to 50 timesthe pitch of the chain. However, the distance should be upto 20 times the pitch of the chain when there is a fluctuatingload.

4.3 Amount of Slack1) It is not necessary to apply initial tension to roller chain

like V/horizontal belt drives. In general, roller chain isused with a suitable amount of slack. If roller chain isstretched too much, the oil film between the pin andbushing will be torn and damage to the roller chain andshafts will be accelerated. On the other hand, too muchslack will cause the roller chain to vibrate, or ride up onthe sprocket teeth resulting in damage to both the rollerchain and the sprocket.

2)Generally, the slack of roller chain should be on the lowerside. Adequate slack is calculated by moving the chainby hand in a downward direction from the center. Thechain slack that you move by hand (SS’) should be about4% of the span (AB) (Ex. The amount of slack when spanlength is 800 mm would be 800 mm × 0.04 = 32 mm).

SpanA

B

S

S’

Fig. 16 Parallelism of the shafts

Level

at le

ast 1

20°

at least 90°

Lifting applications

at least 120°

at least 120°

Fig. 13 Chain Lap

Fig. 14 Amount of chain slack

Fig. 15 Horizontal positioning of the shafts

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2) When chain speed is fast and load fluctuatesThe natural vibration frequency of roller chain and theshock cycle of pumping machinery, or chordal action(up and down movement) of roller chain may attune,causing the roller chain to vibrate. In this case, aguide shoe (made of NBR or EPDM), etc. is used inorder to stop the shaking and prevent vibration.

3) When the center line is verticalInstall a tensioner that can automatically eliminate theextra chain slack. If the driving shaft is on the bottom,a tensioner must be installed.

4.6 Installation of Lambda Curved Chain1)Guide Installation

Lambda Curved Chain has a greater degree of freedomwith regard to the clearance between the pins and bush-ings compared to standard chain. Therefore, a chainguide should be installed to ensure that the chain directlyengages with the sprocket.

2)Minimum Radius (r)The R dimension of the guide should be greater than theminimum radii shown in the following table.

3)Correct the parallelism of the sprockets using a straightedge (or scale). Align the sprocket faces within the toler-ances shown below according to distance betweensprockets.

4)Sprockets are fixed to shafts using Power Locks, LockSprockets, and keys (colors and bolt sets, etc. if re-quired).

4.5 Layouts ( used in the figures below denotes thedrive side)

1)General LayoutsWhen designing the roller chain drive, the centerline ofboth sprockets should be close to horizontal. If installa-tion is close to vertical, it is desirable to install an idler ora guide shoe because even slight elongation can causethe chain to come off the sprocket. The angle of inclina-tion should be kept within 60°.

2)Layouts Requiring Attention1) When the slack is on top

When the center distance is short, move the shafts toadjust the center distance of the sprockets until thechain feels tense.

When the center distance is long, chain slack is ad-justed by installing an idler, which supports the rollerchain.

Clearance between chain and guide should be 2 to 4 mm

Guide shoe

Fig. 21 Vibration preventive guide shoe

Tensioner

Tensioner

Fig. 22 Vertical drivesSlack side

Slac

k si

de

up to 60°up to 60°

Slac

k si

de

Fig. 18 General layouts

Fig. 19 Layout when the center distance is short

Center idler

Fig. 20 Layout when the center distance is long

Fig. 17 Alignment of sprockets

Straight Edge

Gap

Illustration of guide

Minimum Radius (r)

RSC40CU-ΛRSC50CU-ΛRSC60CU-Λ

400500600

R

Lambda Curved Chain

Guide

Sprocket

Up to 1 m : ±1 mm

1 m to 10 m : ±

Over 10 m : ± 10 mm

Distance between shafts (mm)1,000

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5. Chain Test RunAfter installing the chain, carry out a test run and check the following items before you actually start running the chain.

5.1 Pre-Test Run1)Connecting link plates, clips, and cotter pins are installed correctly.2)Chain slack has been properly adjusted.3)Adequate lubrication is available.4)The chain isn’t touching any objects, such as chain cases, etc.5)There are no obstacles in the chain operating area, and all is clean.

5.2 Test-Run1)Sound. There should be no strange noises. Make sure the chain doesn’t touch the case.2)Vibration. Look for excessive chain vibration.3)Sprocket-chain interaction. Make sure the chain doesn’t climb over the sprockets.4)Sprockets. Ensure that the chain separates smoothly from the sprocket.5)Chain articulation. The chain should articulate smoothly.

If you notice any of these conditions, do not begin operation. Correct any problems before proceeding any further.

6. Roller Chain Inspection1)In general, life of roller chain is said to be used up when parts are damaged or when there has been 1.5% wear elonga-

tion. (Refer to 6) of point 5) in 6.3) Try to replace the chain before this kind of situation occurs.2) If roller chain selection and operating conditions are suitable, you can expect rather long life and unexpected trouble

from the chain. However, wear will progress between the pins and bushings after a long period of time, so we have de-scribed some matters below, which should be noted and inspected.

6.1 Inspection Checklist (Table 3)

Procedures Method Inspection Items Reference pagefor details

Step IVisually check the chainduring operation and lookfor any abnormalities.

1. Sound. There should be no strange noises.2. Vibration. Look for excessive chain vibration.3. Sprocket-chain interaction. Make sure the chain doesn’t climb over the

sprockets.4. The chain isn’t jammed in the sprockets.5. There are no stiff areas during articulation.6. Adequate lubrication is available (lubricating system and quantity of oil)7. Make sure the chain doesn’t touch the case.

Inspectionpoints are onthe followingpages andon thetroubleshooting andproblem-solvingpages

Step II

Stop the chain andcarefully inspect eachpart of the chain andsprocket.

1. Check the external cleanliness, corrosive, and lubrication conditions;also look for scratches or other damage to the link plate side and edgesurfaces, pin edges, and roller surfaces.

2. Inspect for pin rotation and the clearance between the link plate and thepins.

3. Inspect the sprocket teeth surfaces and teeth side surfaces forscratches or marks.

4. Measure the wear elongation of the chain.5. Check the articulation of the chain and rotation of the rollers.6. When using a terminating device for lift applications, inspect the wear of

the end bolts and the wear of the connecting link plate pins. Also checkfor proper installation at the same time.

Step III

In order to investigate inmore detail, remove theroller chain and inspect itvisually or check it withmeasuring instruments.

1. The inspection items are identical to those in Step II, however,everything is checked in more detail.

99

6.2 Inspection IntervalsRegular inspection of roller chain is recommend at one-month intervals. Inspection should be carried out at shorterintervals in the following cases.1. Special or corrosive environments2. High speeds with sudden stoppage3. Lifting or indexing operations

6.3 Inspection requirements for ordinary transmission1) Inspecting condition of lubrication

1) While the chain is driving, check to see if there is lu-brication in the clearance between the outer link plateand inner link plate. Also check if the chain or rotatingdisc is immersed in lubricating oil.

2) When the chain is stationary, the chain surface willgenerally appear dirty from wear dust if lubrication isunsatisfactory. This is especially the case betweenthe link plates.

3) When the chain is removed, connecting link pins andthe edge of the inside of the bushings should bechecked. If there are any scratches, red or reddish-brown color, lubrication is improper or insufficient.

2) Inspection of link plates1) If repeated loads over the maximum allowable load

are put on the chain, there is a strong possibility of fa-tigue breakage of the link plate. It is difficult to noticeinitial cracking from fatigue breakage simply from ex-ternal observation.

2) Usually, a crack develops at the edge of a hole or atthe side of the link plate, as shown in the illustrationsbelow. The presence of cracks should be checkedcarefully. Fatigue breakage progresses little by little,so it can be noticed if close attention is paid.

3) When wear occurs from sliding between the edges ofthe plates and the guides, it is necessary to adjust theposition of either the chain or the guides. The allow-able wear on the link plates is limited to 5% of theirheight.

3) Inspection of pinsWhen the pins rotate, the roller chain must be completelyreplaced with new chain. This also applies to the connect-ing pins. By removing the connecting parts it is possible tosee the conditions of wear and rust on the surfaces of thepins.

4) Inspection of the rollers1) As with the link plates, if rollers are also subjected to

loads over the maximum allowable load, the repeatedimpact load between the chain and the sprocketsmay cause fatigue breakage to occur. The rollershould be checked in the same way as the link plate.

2) If foreign objects interfere with the engagement of theroller and sprocket, the roller may be damaged and acrack may develop. Careful attention should be paidto the above.Furthermore, with high-speed operations, even if for-eign objects do not interfere with engagement, cracksmay appear from the impact with the sprocket teeth.

3) Chains damaged from fatigue breakage of the rollersmust be completely replaced, because each part hasreceived the same amount of repeated load.

4) Also check if the roller rotation is poor.

5) Inspection of the sprockets1) Chain and sprocket engagement can be checked by

observing the roller and surface of the teeth. Properengagement is when the contact area is uniform withpoint A in the illustration. If the contact area is lop-sided or the sides of the teeth are wearing away(point B), this may have been caused from improperinstallation of the sprockets or twisting of the rollerchain. In this case, rechecking/readjustment is neces-sary.

2) The normal point of impact is slightly up from thetooth bottom. However, when initial tension is appliedto the chain and tension remains on the slack side,the roller will slightly touch the tooth bottom. However,point A receives the strongest impact.

Positions where cracks are likely to develop

Fig. 23 Cracks on the link plates

Fig. 24 Wear on the edges of the link plates

Correct position Rotated position

Fig. 25 Rotation of the pins

Fig. 26 Cracks on the rollers

Example of a crack

H

H × 5%

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3) When idlers or tensioners are used, the contact areawill be the center of the tooth bottom.

4) When wear on the teeth reaches the values in the fol-lowing table, lifespan of the sprocket has beenreached. For a sprocket with induction hardenedteeth, the lifespan is reached when the hardened lay-er has been removed.

5) If a new roller chain is run on a worn sprocket, thechain will wear at a faster rate than normal. In thiscase, when replacing the chain, replacement of thesprocket is also recommended.

6) Inspection of chain elongation1) Chain elongation is caused not by deformation of the

link plate, but by wear on the pin and bushing.Therefore, the remaining chain life can be estimatedby periodically measuring the chain elongation.

2) Measuring chain elongation(1) The chain should be measured whilst stretching it

slightly to eliminate any slack.(2) Measure the distance of the inside (L1) and outside

(L2) of the rollers at both ends of the measured linksusing a vernier, to get a measurement (L).

(3) When measuring, use at least 6 to 10 links to helpkeep any measuring error down to a minimum.

(4) Finding the chain elongation

(5) For multi-strand roller chain, the measurement iscarried out in the same way as for single strandroller chain of the same pitch.

(6) The limit of usage based on roller chain elongationfor a smooth transmission is as follows.

Chain elongation (%) = Measured length – Standard length × 100Standard length

Standard length = Chain pitch × Number of links

L = L1 + L2

2

forward and reverse one direction

Fig. 27 Contact area of the sprocket teeth

Improper installation causesthe surface of the teeth tobecome ground down.

B: Improperinstallation

Positioning of vernier callipers for measuring 6 links

Roller

Fig. 28 Measurement of length

Limit of usage based on tooth thickness / Dimension B(Table 4)

Limit of usage based on elongation (Table 5)

Size of RS Roller Chain

Dimension B

Normal Pin-GearRS 11 0.6 —RS 15 1.1 —RS 25 1.5 —RS 35 2.5 —RS 41 2.6 —RS 40 2.5 2.7RS 50 2.9 3.4RS 60 3.7 4.3RS 80 5.0 5.8RS100 6.9 7.8RS120 8.7 9.9RS140 10.6 11.9RS160 12.4 14.2RS180 11.3 13.6RS200 12.6 15.0RS240 15.1 18.1RF320T 19.9 24.3RF400T 24.9 30.4

Size of BS Roller Chain

Dimension BNormal

RF06B 1.6RS05B 1.6

RS08B 2.1RS10B 2.9RS12B 3.6RS16B 5.0RS20B 6.8RS24B 7.2RS28B 8.6RS32B 11.9RS40B 12.7

Large sprocket with up to 60 teeth Chain elongation 1.5%

Large sprocket with between 61 - 80 teeth Chain elongation 1.2%



Note: Pin-Gear tooththicknesses are all18T.

101

(7) Dimensions for evaluating standard length (chainpitch × number of links) and 1.5% elongation areshown in Table 6 below.

(8) When the length of the roller chain cannot be mea-sured with a vernier, a tape measure may be used;however, measurements need to be taken over asmany links as possible to reduce measuring error.

(9) Lifespan of Lambda (Λ) / X-Lambda (X-Λ) rollerchain. When chain elongation of Lambda RollerChain reaches about 0.5% it may be losing its lubri-cating properties. This may be determined by theadhesion of red wear particles between the platesand the occurrence of articulation stiffness. Whenthis occurs, the life of the chain has been reached.

6.4 Inspection of lifting and shuttle traction1)This should be carried out with the same requirements as

for ordinary transmission shown in item 6.3.2)It is important to check the lubrication of the connecting

parts between the roller chain and end brackets whereend brackets are installed, as well as the parts where theroller chain winds around the sprocket. (Refer item 3.2 onpage 94)

3)The parts where the roller chain bends around thesprocket should be checked when inspecting the wearelongation of the roller chain.

Standard Length

Standard Length1.5% Elongation

1.5% Elongation

4) Inspection of twisting and side bending of the rollerchain.If partial twisting or side bending of the chain occurs, thecomplete roller chain should be replaced. (Fig. 29)

5)End bracketsCheck for damage by deformation of the hole due towear. If the hole is damaged or deformed, replace the endbracket immediately. The clearance on the pinhole of thebracket affects the life of the roller chain and should bekept to a minimum.

6.5 StorageAvoid storing spare parts, such as a roller chain, sprockets,and end brackets, in high temperature/high humidity anddusty environments. Also, when storing roller chain that hasbeen removed, wash the roller chain and then apply lubri-cation. After the roller chain clearances have been suppliedwith a sufficient amount of lubricant, wrap the chain ingrease paper completely before storing away.

Standard Length and 1.5% Elongation (Table 6)

Side bending Twisting

Fig. 29 Twisting of the roller chain

Hourglass shape Oblong hole

Fig. 30 Wear on the end bracket hole

Chain No. RS25 RS35 RS41

10 LinkMeasure

63.50 92.25 127.0064.45 96.68 128.91

RS406 Link

MeasureStandard Length

Standard Length

38.10 57.15 76.20 76.201.5% Elongation

1.5% Elongation

38.67 58.01 77.34 77.34127.00128.91


10 LinkMeasure

158.75 190.50 254.00161.13 193.36 257.81

RS1006 Link

Measure95.25 114.30 152.40 190.5096.68 116.01 154.69 193.36

317.50322.26


10 LinkMeasure

381.00 444.50 508.00386.72 451.17 515.62

RS1806 Link

Measure228.60 266.70 304.80 342.90232.03 270.70 309.37 348.04

571.50580.07

10 LinkMeasure

6 LinkMeasure

Standard Length


1.5% Elongation

10 LinkMeasure

6 LinkMeasure

Standard Length


1.5% Elongation

Chain No. RS200 RS2406 Link

Measure381.00 457.20386.72 464.06

10 LinkMeasure

635.00 762.00644.53 773.43

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7. Cautions on Use in Special EnvironmentsAs a general rule, roller chain should be used in a clean air flow; however, when used in a special atmosphere, referenceshould be made to the various items that follow.

7.1 Use in wet conditionsIf the chain is used in a sterilizing machine or water screen, for example, where the chain is splashed with water or goesthrough heated vapor, the following problems may occur.1)An increase in abrasive stretch due to improper or insufficient lubrication.2)Decrease in fatigue strength from rust and corrosion (pitting) of the chain.

1) Countermeasures(1) Reduce bearing pressure using a larger sized chain to improve wear resistance.(2) Use corrosion resistant roller chain for rust prevention.

7.2 Use in acidic or alkaline conditionsIf roller chain is exposed to acids or alkaline conditions, such as battery acidand liquid used in plating processes, the following problems may occur.1)Embrittlement fracture of link plates and pins.2)Fatigue breakage of link plates and pins due to rust and pitting corrosion.3)Wear from usual mechanical abrasion and corrosion.4)Reduction in volume of the whole chain from corrosion.5) In special cases where the chain is underwater (immersed in liquid), electro-

chemical corrosion may occur.6)There are also circumstances where even stainless steel roller chain will cor-

rode. Fig. 31 shows an example of chain that was used in a plating appara-tus. The chain fell to pieces within one month due to the affect of the acid.1) Countermeasures for embrittlement fractures (Stress corrosion cracking)

(1) Adopt a brittleness countermeasure that lowers crack susceptibility.(2) Install a cover or casing to prevent acids or alkalis from contacting the

chain.(3) Adopt a high-grade material with anti-corrosive properties.

2) Countermeasures for corrosion(1) Use surface-treated chain.(2) Install a cover or casing to prevent acids or alkalis from contacting the

chain.(3) Adopt a high-grade material with anti-corrosive properties.

In general, embrittlement fractures (stress corrosion cracking) occur around thelink plate holes. This is the area where the pin and bushing are press-fitted tothe link plate having the highest concentration of stress. Cracks are generatedeven when there is no tension on the chain. Roller chain in general is more sus-ceptible to acids than alkalis, and in special cases, embrittlement fractures(stress corrosion cracking) are generated by seawater or pit water.

7.3 Use under conditions where abrasion is a problemIf the chain is exposed to strong abrasive materials that promote wear such as sand, coke and metal particles, the followingproblems may occur.1)When the abrasive materials penetrate between the pins and bushings, chain wear is promoted and poor articulation oc-

curs.2)When the abrasive materials penetrate between the bushings and rollers, chain wear is promoted and poor roller rotation

occurs.3)When the abrasive materials penetrate between the link plates, poor articulation occurs.

1) Countermeasure(1) Apply a dust-protection casing.(2) Remove foreign particles by regularly washing the roller chain.(3) Reduce bearing pressure using a larger sized chain to improve wear resistance.(4) Increase abrasion resistance by applying special processing to the parts of the chain where abrasion is a problem.

Fig. 31 Corrosion of stainless steel roller chain

Fig. 32 Hydrogen embrittlementcracking

103

8. Roller Chain Drive Troubleshooting and Problem-SolvingWhen there is significant damage and breakage with regard to the roller chain and sprockets, please carry out the follow-ing remedies and replace with new chain and sprockets.

8.1 General

Symptom Possible Causes Remedy

The roller chain and sprocket do notmatch.

Replace the chain or sprocket with the correct size.

Excessive load. Decrease the load, or increase the number of strands or sizeof the chain.

Elongation of the chain due to wear orexcessively worn sprocket teeth.

Replace with new chain and sprockets.

Unusual noises.

Improper installation of the sprocket orshaft.

Inspect and correct.

Chain casing or bearings are loose. Tighten all bolts and nuts.

Excessive or insufficient slack in thechain.

Adjust the distance between shafts to obtain the properamount of slack.

Excessively worn chain or sprocket. Replace the chain and sprocket with new chain andsprocket.

Lack of or unsuitable lubrication. Provide proper lubrication according to the operatingconditions.

Excessive vibrations inchain.

Span between shafts is too large. Install an idler.

Excessive slack in chain. Adjust the chain length or distance between shafts. Install atensioner.

Elongation of the chain due to chainwear or excessively worn sprocketteeth.

Replace with new chain and sprocket.

Chain is resonating with periodicexternal force.

Load fluctuations are excessively large. Reduce fluctuations with fluid coupling or similar technique.

The chain winds ontothe sprocket(Poor separation fromthe sprocket teeth)

Chain is riding up onthe sprocket.

Change the chain’s mode of vibration.1. Preventing resonance.

a. To change the natural frequency of the chain.• Alter the effective tension either by applying an initial

tension or adjusting the existing one.• Install a tensioner to change the chain span.• Replace the chain. Choose a different quality and

spring coefficient.b. Change the vibration frequency.

• Change the speed of rotation of the sprocket.• Re-evaluate the device set-up.

2. Mechanically reducing the vibrations.• Install a guide

shoe.• Install a self-

adjustingtensioner on theslack side.

Chain Guide

Tensioner

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Improper lubrication or poorenvironment.

Replace chain and protect it from the environment with chaincasing or proper lubrication.

Excessive wear on theinside surface of thelink plates and sides ofthe sprocket teeth.

Improper installation. Correct sprocket and shaft installation.

Excessive wear on thelink plate side surfacesand pin heads.

Improper installationof guides, etc.

Check the condition of the guides, and increase the gapbetween the guides and the chain.

Chain is not installed correctly. Inspect the installation and correct as necessary.

Spreading of linkplates.

Uneven or excessive loading caused byimproper installation.

Replace with new chain and correct installation.

Rusting of the chain

Contamination from metal dust or dirtbecause of improper lubrication.

Remove the chain, wash it thoroughly, and provide properlubrication.

Excessive load or bent pin. Reduce the load or increase the number of or size of chains.Replace chain with a larger size.

Corrosion or rusting. Install a chain casing to protect the chain.

Seizing from improper lubrication. Provide proper lubrication according to the operatingconditions.

Improper flex orbending of chain, tightjoints.

Seizing of pin and bushing. Provide the proper operating conditions.

Pin and bushing seized from high-speed operation. This causes improperbending and can lead to chainbreakage.

105

8.2 Link Plate Related


Excessively large shock load. Reduce shock loads by making the start-up, stopping, andother actions smoother (installing a shock absorber, etc.).Increase the size or number of chains.

Vibrations in the chain. Install an anti-vibration device (for example, tensioner oridler). Refer to “Excessive vibration in chain” page.

Large inertia in the driven machine(excessive load).

Increase the size or number of chains.

Corrosion. Replace with a new chain. Install a casing to protect thechain. Otherwise, periodically clean the chain.

Cracks in the linkplates (fatigue), whichare perpendicular tothe direction of pull.

Loads are greater than allowable. Remove all large or excessively repeating loads. Otherwise,increase the size or number of chains. Replace with a newchain.

Deformation of link plateholes.

Excessive load. Remove the cause of the excessive load. Replace with a newchain.

The chain is being used in an acidic oralkaline environment. (This is notcaused by a repetitive load).

• Replace with a new chain. Install a casing to protect thechain from the environment.

• Consider a chain with a high resistance to corrosion stresscracks. (Please consult Tsubaki.)

Breakage of link plate.

Corrosion stress cracksappear, usually asbow-shaped cracks inthe link plate.

(1) Static fracture.Stretching the link plate witha tensile load beyond itsbreaking load will cause itto stretch and then break.

(2) Fatigue fracture.By repeatedly applying aload past its fatigue limit(fatigue strength), thefatigue will start at holesand then suddenly break.

(3) Offset link plate fatigue.Offset link plates are bent atthe center, and the resultingconcentration of stress at thebend can cause a fatiguebreak. Avoid using offset linksin high-stress applications.

106


MAI

NTEN

ANCE


Breakage of pin.

Excessively large shock loads.Reduce shock loads by making the start-up, stopping, andother actions smoother.

Remove the large repetitive load. Otherwise, increase thesize or number of chains.

Subject to a repetitive load greater thanthe fatigue limit of the pin.

Corrosion.Install a casing to protect the chain. Periodically clean andlubricate the chains.

Pin rotates or begins tostick out.

Excessive load or improper lubrication.Replace with new chain. Improve the lubrication or loadingconditions.

Operating a chain at high load withoutproper lubrication can create frictionbetween the pin and bushing, causingthe pin to rotate. In this condition, thepin may come out, leading to chainbreakage.

Replace with new chain immediately. Do not weld or reusethe pins. (Dispose of the old chain to be sure that it is notused again by mistake.) Also, if the pin head or link platesurface is worn, check the installation.

Normal

Wear or rust occursonly at the connectingpin in a liftingapplication or similaroperation.

Improper initial lubrication at installation. Replace the connecting link. If pin wear is excessive, replacethe chain also. Take special care to properly install theconnecting section for devices such as end brackets usedfor lifting applications, etc.

8.3 Pin Related

8.4 Bushing / Roller Related


Roller and/or bushingsplits. (Falls)

Excessive load or speed of rotation. Choose a different chain according to the kW ratings table.

Inadequate lubrication.Replace the chain. Provide adequate lubrication accordingto the operating conditions.

Fatigue fracture.Reached the point of fatigue during operation and eventually broke. Impact withthe sprocket teeth at a force exceeding the chain’s transmission capacity.

Roller does not rotate.

RS11SS, RS15, RS25, RS35 A bushed chain and not a roller chain is being used.

The inner link plate is moving inward, orthe bushing is cracked.

Replace with a new chain. Re-inspect the installation andload conditions.

Foreign particles have gotten betweenthe bushing and roller.

Periodically clean the chain. Install a casing to protect thechain.

Roller is opening up.Excessiveload.

Reduce the load. Provide adequate lubrication.

Roller is becominghourglass shaped.

Excessive load or inadequatelubrication.

Replace with new chain. Improve the lubrication or loadingconditions.

(1) Static fracture.The type of fracture found when subjectingthe chain to the breakage test. Occurswhen chain is subjected to a load greaterthan its breakage strength.

(2) Fatigue fracture.Occurs when the pin isrepetitively subjected to loadsgreater than its fatigue limit. Re-check the size of the peak loadand formulate a countermeasure.

(3) Shock-induced bending fracture.The pin is subjected to a large shock load andbreaks. The side with the initiating point receivestensile load, and the fracture progresses fromthis point. A pin is especially susceptible tobecoming weak with regard to bending whenthe surface of the pin has corroded. This type ofphenomenon occurs quite easily.

107

Ordering Roller ChainMake sure to specify the following when ordering roller chain.

The following also applies to chainsizes not mentioned below.

1. Example of chain identification

2. Example of a specific order Described using RS Roller Chain as an example.

Ordering base roller chain

1) When ordering by the unit (10 feet). 2) When ordering an even number of links.

Ordering connecting links separately

Sprocket identification

In general, roller chain is kept in stock by the unit (excl.special types). There is one connecting link included in onefull-length unit. However, please place an order for con-necting links separately if the chain is going to be dividedinto two or more pieces, or be connected with anotherchain to greaten the length.

Length of 1 unit : 3,048 mm (10 feet)However, RS11, RS15 and RS25 are 502 mm, 1,000mm and 1,016 mm respectively.

(Example of order)RS60 Roller Chain n unit(s)

Only specify the pin form of the base chain (rivet,cotter pin) for the chain sizes that have two formsavailable.

No. of CLs if required RS60 CL n unit(s)

No. of FCLs if required RS60 FCL n unit(s)

RS80 -2*SUPER80 -2

RSD80Λ -2RSD80NP -2RSD80X-Λ

RS80HT -2SUPER80H -2

RS80NP -2RS80WP -2RS80DPRS80SS -2RS80ASRS80SN

* There are two (2) pin types for RS60, 80, 100, and 120 singlestrand chains.RS60CPRS80CPRS100RPRS120RP

According to this catalog, this part is shown as the chainnumber.

(1) Example of 8 links

(Example of order) RS50 Roller Chain 8 links(MCL is supplied when not specified)

(Example of order) RS50 Roller Chain 8 links(Please specify “with FCL”)

(2) Example of 20-link endless strand

(Example of order) RS50 Roller Chain 20 links(Please specify “endless strand”)There is no CL supplied in this case.

(3) Please consult Tsubaki for formations other than thosejust shown.

8 links including the connecting link.

RS80 -2Form

RS60 -2B 20T -SS

Sprocket type(B, C, A)

No. of sprocket teeth(“T” is teeth)

Base chainand size

SpecificationSS : SUS304P : Engineering

plastic

RS60 -2 -CL

Show the rollerchain (base)

Show theconnecting link

CP is shown when the pin is cotter pin type.Rivet type when no code is shown.

• RS Roller ChainM-type connecting link......CLF-type connecting link.......FCL

• There is only one type of connecting linkavailable for all other chain besides RS RollerChain, so CL is shown for all.

• 1 pitch offset link................OL• 2 pitch offset link................2POL

Number of strands (Not shownwhen single strand)

RS Roller Chain...........................SUPER Roller Chain.............Lambda (Λ) Roller Chain..........NP Lambda (Λ) Roller Chain....X-Lambda (X-Λ) Roller Chain...RS-HT Roller Chain.....................SUPER-H Roller Chain.........NP Roller Chain..........................WP Roller Chain.........................DP Roller Chain..........................SS Stainless Steel Roller Chain..AS Stainless Steel Roller Chain..SN Low Noise Roller Chain........

Size / Spec.

*{ }*{ }

( )RP is shown when the pin is rivet pin type.Cotter pin type when no code is shown.( )

( )

( )

[ ]

108


ORDE

RING

150 24000

20 6400

20 4800

20 4800

20 4800

15 3600

10 1920

10 1600

5

150

20

20

20

20

15

10

10

5600

3) When ordering an odd number of links.Please specify the formation. An example is shown below.Be careful of chain types that don’t have OL’s available.In case of an unspecified odd number of links, both endlinks will be treated as inner links.

(1) Example of 9 links

(Example of order) RS50 Roller Chain 9 linksPlease specify “with OL and MCL.”

(2) When a 2 pitch offset link is specified

(Example of order) RS50 Roller Chain 9 linksPlease specify “with 2POL and FCL.”

(3) Example of CLs on both ends

(Example of order) RS50 Roller Chain 9 linksPlease specify “with MCLs on bothends.”RS50 Roller Chain 9 linksPlease specify “with FCLs on bothends)

(4) Example of inner link on both ends

(Example of order) RS50 Roller Chain 9 linksPlease specify “with inner link on bothends.”

(5) Example of outer link on both ends

(Example of order) RS50 Roller Chain 9 linksPlease specify “with outer link on bothends.”

4) When ordering by the reel.There is a fixed reel length available for RS25 ~ RS80 sin-gle strand chain (table below).

(Example of order) RS50 Roller Chain n reel(s)

5) When ordering sprockets.(Example of order)Standard sprocket RS50 1B20T n pcsFit bore sprocket RS50 1B20TH18J n pcs(shaft hole diam.: 25 mm)For SUS304 RS50 1B20T-SS n pcsEngineering plastic made RS50 1B20T-P n pcs

6) When ordering a replacement chain.1) When the roller chain size is unknown.

(1) Roller chain specification. (It is important to confirmthe specifications such as powerful series type andmaterial. Please confirm with the equipment maker.)

(2) Since the roller chain link plates have been markedwith the roller chain size and specification, pleaseconfirm this information.

(3) Please measure the roller chain pitch, roller diameter,width between inner links and plate thickness.

2) When the sprocket number is unknown.(1) Chain No. and number of strands.(2) Sprocket type(3) Shaft hole diameter (Not required when shaft hole

processing is carried out in your company)(4) Number of teeth(5) Boss diameter and boss length (Only for special

types).(6) Whether or not the teeth ends have been hardened.(7) Marking

Additionally, when the roller chain number is also un-known, please provide the following data in addition to(1) ~ (7) above:(8) Width of teeth (T)(9) Tooth bottom diameter (DB) (DC for an odd number of

teeth)

For ease of understanding, the photos inthe order examples show assembled CLsand OLs. However, the parts are actuallydisassembled when ordered.

SizeNo. of

units/reelNo. of links No. of CLs included

(M-type connecting links)

RS25

RS35

RS37

RS38

RS41

RS40

RS50

RS60

RS80

This combination is possible for RSRoller Chain only.[ ]

When both ends are outer links, make sure tocorrectly carry out riveting of the pin endsusing a rivet punch (refer to Peripheral Toolssection) after installing the chain in the ma-chine.

[ ]

– MEMO –

draive chain - tsubaki make sure to refer to design data, selection criteria and instruction...

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