slide guide stroke ball splinerotary ball splball spline … · 120 160 200 400 800 1,200. c-5...

C-1

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C-2

NB now offers a new standard in linear motion with TOPBALL. The TOPBALL slide bush is a high performance bushing with three times the load capacity, capable of providing up to 27 times normal travel life of a conventional slide bushing.TOPBALL is available in a variety of configurations to fit various service conditions. NB's self-aligning TOPBALL can be designed into many different applications such as factory automated equipment, machine tools, industrial machines, electrical equipment, optical and measuring instruments.In the early stages of NB's development of TOPBALL, careful thought and consideration was given to such factors as quality, cost, performance and interchangeability. The results of these efforts are reflected in the TOPBALL features.

1. Increased Load Capacity:NB's uniquely designed ground load plate provides circular arch contact to the ball element resulting in a greater dispersion of the load, enabling TOPBALL to provide three times the load capacity of conventional slide bushings.

2. Longer Travel Life:Dispersed stress on the load plate provides TOPBALL up to 27 times the travel life of conventional slide bushings.

3. Self Aligning Capability:Load plates are thinner at the ends to provide a pivot point at the center of the plate. The center acts as a fulcrum to compensate for any slight misalignment between the shaft and the housing bore that might be caused by inaccurate machining, mounting errors or shaft deflection.

4. Floating Integral Wiper Seal:NB's unique floating seal design allows for self-alignment while maintaining equal and constant contact to the shaft. Seals do not add to the overall length of the bushing allowing for more compact designs.

5. Clearance Adjustable:TOPBALL load plates are designed to "float" in the outer sleeve which allows for clearance between the ball elements and shaft to best suit application requirements.

6. Cost Effectiveness:TOPBALL's higher load capability and longer travel life enables the use of smaller components such as bushings, housings and shafts, reducing material cost and the overall cost of the system. Longer travel life also extends replacement periods and reduce maintenance cost.

TOPBALL FEATURES

Circular arch design

Ground surface raceway

1

Self-aligning feature

floating seal

��

Figure C-1 Illustrating circular arch design and ground surface raceway

Figure C-2 Illustrating floating seal and self-aligning feature

C-3

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Inch seriesMetric series

TYPES

TOP

BA

LL

clos

ed

type

open

type

clos

ed

type

adju

stab

le

type

TOP

BA

LL

unit

open

type

adju

stab

le-o

pen

type

TK

P.C-8

TW

P.C-10

TKA

P.C-12

TKA-W

P.C-13

TWA

P.C-18

TWA-W

P.C-19

TWJ

P.C-20

TKD

P.C-16

TKD-W

P.C-17

TWD-W

P.C-23

TKE

P.C-14

TKE-W

P.C-15

P.C-22

TWD

TW-OP

P.C-10

TK-OP

P.C-8

TWJ-W

P.C-21

C-4

Basic Dynamic Load Rating and Life Expectancy:The basic dynamic load rating is the load which allows a rating life of 50km, without changing its magnitude and direction. The rating life can be obtained from the following equation.

Figure C-3 shows the relationship between rating life (L) and load ratio(C/P). In the practical use of a bushing, other factors that affect the life, such as shaft hardness and load condition should be considered. The equation for calculating bushing life considering these additional factors is: 3L=� ��50� Equation (2)

Life time can be calculated by obtaining the travelling distance per unit of time as follows:

Lh=�� Equation (3)

The life of a slide bush can be easily calculated with the load rating of the bush, shaft hardness and applicable load. However, in many cases, slide bushing failure may be caused by improper design of peripherals, including the shaft and housing, inappropriate mounting or improper operation. Serious consideration of these peripheral factors, in addition to load rating, are highly recommended when designing a slide bush application.

RATED LIFE

C 3

L =��50� Equation (1)�� P

fH C�� fw P

L�103

��2�Ls�N1�60

Figure C-3: Slide Bush Life

L : travel life (km)C : basic dynamic load rating (N)P : load (N)

fH : hardness coefficient (See Figure C-4)fw : load coefficient (See Table C-1)

Lh : life time (hr)Ls : stroke length (m)N1 : stroke frequency per min. (cpm)L : travel life (km)

50,00040,000

30,000

20,000

10,000

5,0004,000

3,000

2,000

1,000

500400

300

200

100

50

40

300.1 0.2 0.3 0.4 0.5 1

ratin

g lif

e L

distance coefficient FL =P/C

Km

2,000 106inch

1,600

2

4

8

12

1620

40

80

120

160200

400

800

1,200

�

C-5

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Load coefficient (fw):When calculating the bush load, it is necessary to accurately obtain weight, inertial force based on speed, moment load and each transition as time passes. However, it is difficult to calculate those values accurately because reciprocating motion involves the repetition of starts and stops as well as vibration and inpact. A more practical approach is to obtain the load coefficient by taking the actual operating conditions into account.

Hardness Coefficient (fH):The shaft must be hardened to over 58HRC when a slide bush is used. If not properly hardened, permissible load is lowered and the life of the bushing will be shortened.

Examples of Calculations:(1) Life expectancy when NB's TOPBALL TK 25 is used under the following conditions:

Load per bush: �668N

Stroke length: �0.2m

Rate of cycles/min: �35

Shaft hardness: �60HRC

From the basic dynamic load of TK25 is 3780N. hardness coefficient(fH) is 1.0, and the operating speed can be calculated as 0.014km/min. Therefore, the load coefficient(fw) is considered as 1.0.Using Equation (1) (Page C-4)

Using Equation (3) (Page C-4)

(2) Selection of size for the application Expected life: ��15,000 hoursNumber of bushings in the carriage: �4Gross weight on the carriage: �� 668NStroke length: ��0.0009kmTraveling speed: ��0.03km/min.Shaft hardness: ��60-64HRCThe life expected in traveling distance is:

Note that: fH=1.0, fw=1.5, P=668/4=167NAs a result, the TOPBALL that is able to handle this load is: TK20.

fwOPERATING CONDITIONS

1.0-1.5operation at low speed (15m/min. or less)

without impulsive shock from outside

1.5-2.0 operation at intermediate speed

(60m/min.or less) without impulsive shock

2.0-3.5 operation at high speed (over 60m/min.)

with impulsive shock

Table C-1: Load Coefficient

3780 3

L =��50=9,060km�� 668

9,060�103

Lh = �� =10,800hours 2�0.2�35�60

L=15,000�0.03�60 =27,000km(2.7�104)From Equation (2)

60

raceway hardeness HRC

hard

ness

coe

ffici

ent (

fH)

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

50 40 30 20 10

Figure C-4: Hardness coefficient

3 27000 fw C= ��P=2,040N 50 fH�

C-6

Basic Static Load Rating:If a slide bush is loaded when it is in a stationary condition or working at a low speed, a permanent elastic deformation is formed on the rolling element. The deformation prevents smooth movement of the bushing. To eliminate this possibility, the basic static load rating must not be exceeded.

Relation Between Ball Circuits and Load Rating:The load rating of a slide bush varies according to the loaded position on the circumference. The value in the dimensional table indicates the lowest load rating with the load placed on top of one ball circuit. If the slide bush is used with two ball circuits loaded uniformly, the value will be greater. Table C-2 shows the load ratio for the number of ball circuits in each case.

Clearance and Fit:An appropriate clearance between the slide bush and shaft is required in TOPBALL operation. Inadequate clearance may cause early failure and/or poor, rough movement. Proper clearance is determined by shaft diameter and housing bore. Table C-3 and C-4 shows NB's recommended tolerances of the shaft and housing bore in order to maintain the appropriate clearance.

Anti-Corrosive Type:A special TOPBALL is also available for corrosive applications. Specify with a suffix "-SK" for either bushing or slide unit requiring our anti-corrosive type TOPBALL. The load plates are electroless nickel plated and use Stainless Steel ball elements. For "-SK" slide units, all hardware components are of anti-corrosive properties.

Table C-3: Recommended Tolerance for Shaft Dia. and Housing Bore

Table C-2: Optional Load Positions

NUMBEROF ROWS

1,414 1,463 1,280

Co

54 6

Co(LOAD RATING

SPECIFIEDON THE TABLE)

Comax(MAXIMUM

LOAD RATING)

LOAD RATIOComax/Co

Co Co

Comax Comax Comax

housing bore.shaft dia.size

tol. (H7)inch

Dinch

tol. (g6)inch

drinch

� .0005 0.3750

�.0002�.0006

.1875TW 3

� .0007 0

.5000.2500TW 4

.6250.3750TW 6

�.0008 0

.8750�.0002�.0007

.5000TW 81.1250.6250TW10

�.00100

1.2500�.0003�.0008

.7500TW121.56251.0000TW16

� .0012 0

2.0000�.0004�.0010

1.2500TW202.37501.5000TW24

3.0000�.0004�.00122.0000TW32

Table C-4: Recommended Tolerance for Shaft Dia. and Housing Bore

housing boreshaft dia.part

number tol. (H7)�m

Dmm

tol. (h6)�m

drmm

�21

0

190

�11

10TK102212TK122616TK16

�25

0

320

�13

20TK204025TK254730TK30

�30/0620/�1640TK40

C-7

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WAY/G

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Shaft and Housing:To optimize NB TOPBALL performance, high precision shafts and housings are required.

1. Shaft: Dimensional tolerance, surface finish and hardness greatly affect the traveling performance of the TOPBALL. The shaft must be manufactured to the following tolerances.

A. A surface finish of 0.4Ra or less.

B. Hardness of 60 HRC or more. Hardness less than 60 HRC decreases the life considerably and reduces the permissible load.

C. The correct tolerance of the shaft diameter is recommended on Table C-3 and C-4 (Page C-6).

The NB Slide Shaft is an ideal component manufactured to these specifications. For details, please refer to Page G-2 to G-21.

2. Housing: There are a wide range of designs and manufacturing techniques for mounted housings. NB pre-engineered slide units are also available. For proper fit refer to Table C-3 and C-4 (Page C-6).

Mounting:TOPBALL is designed to be press fitted into the housing bore. When inserting bushing, however, don't apply excess force nor shock load which may cause permanent damage.

Examples of Mounting

Figures C-5 to C-8 illustrate mounting methods as examples.

Figure C-5 Use of holding plates

Figure C-6 Adjustable type housing

Figure C-7 Use of external retaining rings

Figure C-8 Open type housing

C-8

D1

B

1˚

1˚

Self-aligning in all directions

dr

D

B

W W

L

TK TYPE � TOPBALL Metric Type �

seals on both sides

TK 20 UU OP SK

TK type

size

part number structureexample

sealblank without seal UU

blank closed OP open

blank standard SK anti-corrosive

part numberLDdropen typeclosed type

tolerancetolerance*massno.ofmassno.ofballball

mmmmmm�mmmgcircuitsgcircuits

�0.2

2919��80

10��145TK10322212174TK12-OP215TK123626��9

� 116354TK16-OP435TK16

453220485TK20-OP586TK205840�11

� 1251035TK25-OP1236TK25

6847301775TK30-OP2166TK308062�13/�2402755TK40-OP3336TK40

* Based on nominal housing bore

(1) For anti-corrosion the load plates are electroless nickel plated with Stainless Steell ball elements.

C-9

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TK 12-OP

F: Pin hole

h

FJ

7˚

FTK 25-OP

h

J F

G

F

G

TK 30-OP, TK 40-OP

TK 16-OP, TK 20-OP

h

J

h

J

basic load ratingmajor dimensions nominal

shaftdiameter

staticdynamicopen typeD1WBCoCJGFH11�htolerance

mmNNmmmmmmmmmmmmmmmm10935750��181.3

0�0.2

22.012129010200.7�

3

66�6.5211.322.916155012501.0�68�924.91.324.920263020901.0�55�930.31.631.525472037801.51.557�11.537.51.85

0�0.3

44.130681054702.2257�1444.51.8552.140823065902.71.556�19.5592.1560.6

1N � 0.102kgf

C-10

D D1dr

W WB

L

1

Self-aligning 1in all directions

TW TYPE � TOPBALL Inch Type �

TW 20 UU OP

TW type

size


sealblank without seal UU seals on both sides

blank closed OP open

blank standard SK anti-corrosive

SK

major dimensionspart numberLDdropen typeclosed type

tolerancetolerance*massno.ofmassno.ofTW ballball

inchinchinchinchinchlbscircuitslbscircuits �.008.562.3750

0�.0005

.1875��.0044TW 3 0�.015

.750.5000.2500��.0094TW 4

.875.6250.3750��.0144TW 6

0�.020

1.250.8750.5000.0333TW 8-OP.0434TW 81.5001.1250.6250.0834TW 10-OP.1035TW 101.6251.2500.7500.1025TW 12-OP.1236TW 122.2501.56251.0000.2205TW 16-OP.2656TW 16

0/�.0252.6252.0000 0�.0006

1.2500.4195TW 20-OP.4856TW 200/�.0303.0002.37501.5000.6395TW 24-OP.7506TW 240/�.0404.0003.00000/�.00082.00001.1685TW 32-OP1.4116TW 32

* Based on nominal housing bore.


C-11

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SL

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WAY/G

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WAY

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basic load ratingnominal

shaftdiameter

staticdynamicopen typeD1WBCoCJGFhtolerance

inchlbslbsinchinchinchinchinchinchinchinch3/16 47 35��

1/4 80 60��.4687.0390 0�.015

.5153/8 120 95��.5880.0390.7031/2 290 230through.6250.136.313.8209.0459

0�.020

1.0325/8 500 400.0390.1250.105.3751.0590.05591.1123/4 590 470.0590.1250.136.4381.1760.05591.27211,060 850.0470.1250.136.5631.4687.06791.886

1-1/41,5301,230.0900.1875.201.6251.8859.06790/�.0252.0111-1/21,8501,480.0900.1875.201.7502.2389.08590/�.0302.422

23,0402,430through.3125.2651.0002.8379.10290/�.0403.206

30

120 .125

h G

F

TW 8-OP

72

7226

0.039

15

h30

F

G

TW 10-OP

60 60

JF

Gh30

8

TW 12-OP thru TW32-OP

1 inch = 25.4 mm1lbs�0.454 kg1lbs�4.448 N

C-12

TKA TYPE� Block Type �

(Metric Series)

partnom.shaftdia.

mm

H

mm

E

mm

W

mm

L

mm

F

mm

G

mm

T

mm

X

mm

Y

mm

B

mm

C

mm

M K

mm

S

mm

major dimensions mounting dimensions load rating

dynamicCN

staticCoN

mass

g

number

TKA12UUTKA10UU

TKA16UUTKA20UUTKA25UUTKA30UUTKA40UU

121620253040

182225303545

21.526.5303943.554

4353607887

108

394354677991

354250607090

283542485872

55578

10

--

1922.52626.5

--9

1011.514

324045606886

232632404558

M 5M 6M 8M10M10M12

111318222226

4.35.36.68.48.4

10.5

102012502090378054706590

129015502630472068108230

116205326624980

1670

10 16 20 40 36 31.5 25 5 - - 29 20 M 5 11 4.3 750 935 90

4-M

W B

E

F G

K

H

T

NBmark

LC

XY

M6 1.0(oil hole)

1self-aligning in all directions

0.150.15

0.01

5

0.015

4- S

M6�1.0

TKA 30 UU

TKA type

size

seal


blank without seal

UU seals on both sides

SKblank standard

SK anti-corrosive

recomended shaft tolerance is h6


1N�0.102kgf

C-13

��

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SL

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WAY/G

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WAY

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part

nom.shaftdia.

mm

H

mm

E

mm

W

mm

L

mm

F

mm

G

mm

T

mm

Y

mm

B

mm

C

mm

M K

mm

S

mm


dynamicCN

staticCoN

mass

g

number

TKA12WUUTKA10WUU

TKA16WUUTKA20WUUTKA25WUUTKA30WUUTKA40WUU

121620253040

182225303545

21.526.5303943.554

4353607887

108

7684

104130152176

354250607090

283542485872

55578

10

7.59.59

1011.514

324045606886

56647694

106124

M 5M 6M 8M10M10M12

111318222226

4.35.36.68.48.4

10.5

16522025339061208860

10680

2580310052609440

1362016460

227390630

121018803280

10 16 20 40 70 31.5 25 5 7 29 52 M 5 11 4.3 1215 1870 175

TKA-W TYPE� Double-Wide Block Type �

(Metric Series)

TKA 30 UUW

TKA type

size

double-wide type

seal


blank without seal


SK

blank standard

SK anti-corrosive

4-M

W B

E

F G

K

H

T

NBmark

LC

YM6 1.0(oil hole)

0.150.15

0.01

5

0.015

4- S

M6�1.0

1N�0.102kgf(1) For anti-corrosion the load plates are electroless nickel plated with Stainless Steell ball elements.

C-14

TKE TYPE� Open Block Type �

(Metric Series)

TKE 30 UU

TKE type

blank

size

without seal

UU

seal


seals on both sides

SKblank standard

SK anti-corrosive

4-M

W B

E

R

J

FK

H

T

NBmark

0.15

0.01

5

0.015

4- P4- S

L

CX

Y

M6 1.0(oil hole)


0.15

M6�1.0

partnom.shaftdia.

mm

H

mm

E

mm

W

mm

L

mm

F

mm

T

mm

R

mm

X

mm

Y

mm

B

mm

C

mm

M K

mm

S

mm

P

mm

J

mm


dynamicCN

staticCoN

mass

g

number

TKE12UUTKE16UUTKE20UUTKE25UUTKE30UUTKE40UU

121620253040

182225303545

21.526.5303943.554

53607887

108

394354677991

283542516077

55578

10

6.599

11.51419.5

666855575756

14.515.51922.52626.5

7.59.59

1011.514

324045606886

232632404558

M 5M 6M 8M10M10M12

111318222226

4.35.36.68.48.4

10.5

89.5

11141417.5

4.55.56.58.68.6

10.8

102012502090378054706590

129015502630472068108230

99175275558860

1490

43

�

1N�0.102kgf(1) For anti-corrosion the load plates are electroless nickel plated with Stainless Stell ball elements.

C-15

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GU

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PBALL� PRO

DU

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BU

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UN

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EB

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HSLIDE

ROTARYBUSH

SL

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SH

AF

TSLIDE

WAY/G

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WAY

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TAB

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TOR

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W

TKE-W TYPE� Double-Wide Open Block Type �

(Metric Series)

TKE 30 UUW

TKE type

size

double-wide type


sealblank without seal


SK

blank standard

SK anti-corrosive

4-M

W B

E

R

J

FK

H

T

NBmark

0.15

0.01

5

0.015

4- P4- S

LC

YM6 1.0(oil hole)

0.15

M6�1.0

mm

H

mm

E

mm

W

mm

L

mm

F

mm

T

mm

R

mm

Y

mm

B

mm

C

mm

M K

mm

S

mm

P

mm

J

mm


dynamicCN

staticCoN

mass

g

part

number

nom.shaftdia.

TKE12WUUTKE16WUUTKE20WUUTKE25WUUTKE30WUUTKE40WUU

121620253040

182225303545

21.526.5303943.554

4353607887

108

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56647694106124

M 5M 6M 8M10M10M12

111318222226

4.35.36.68.48.4

10.5

89.5

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TKD 20 UU

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SK anti-corrosive

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partnom.shaftdia.

mm

H

mm

E

mm

W

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L

mm

F

mm

G

mm

Z

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T

mm

R

mm

X

mm

Y

mm

B

mm

C

mm

M K

mm

S

mm

P

mm

J

mm


dynamicCN

staticCoN

mass

g

number

TKD12UUTKD16UUTKD20UUTKD25UUTKD30UUTKD40UU

121620253040

182225303545

21.526.5303943.554

4353607887

108

394354677991

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3.23.245.55.55

568

101215

55578

10

6.599

11.51419.5

666855575756

14.515.51922.52626.5

7.59.59

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324045606886

232632404558

M 5M 6M 8M10M10M12

111318222226

4.35.36.68.48.4

10.5

89.5

11141417.5

11.51418222633

102012502090378054706590

129015502630472068108230

99175275558860

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TKD 30 UUW

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SK anti-corrosive

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mm

E

mm

W

mm

L

mm

F

mm

G

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Z

mm

A

mm

N

mm

T

mm

R

mm

Y

mm

B

mm

C

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M K

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S

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P

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J

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dynamicCN

staticCoN

mass

g

part

number

TKD12WUUTKD16WUUTKD20WUUTKD25WUUTKD30WUUTKD40WUU

121620253040

182225303545

21.526.5303943.554

4353607887

108

7684

104130152176

283542516077

3.23.245.55.55

568

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10

6.599

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56647694

106124

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4.35.36.68.48.4

10.5

89.5

11141417.5

11.51418222633

16522025339061208860

10680

2580310052609440

1362016460

190312505

105016302880

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C-18

TWA TYPE � Block Type �

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T

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012

oil hole*

basic load ratingmounting dimensionsmajor dimensionsnom.

shaft dia.part numbermassstaticdynamic

Co

lbs.

C

lbs.

S

inch

C

inch

B

inch

M

inch

G

inch

T

inch

F

inch

L

inch

W

inch

E

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h

inch lbs.inch.0908060.156.7501.3121.000.750.188.8131.1881.625.8125.43701/4TWA 4UU.12012095.156.8751.4371.125.875.188.9381.3131.750.8750.50003/8TWA 6UU.248290230.1561.0001.6881.3751.125.2501.2501.6882.0001.0000.68701/2TWA 8UU.465500400.1881.1252.1251.7501.437.2811.6251.9382.5001.2500.87505/8TWA 10UU.553590470.1881.2502.3751.8751.563.3131.7502.0632.7501.3750.93703/4TWA 12UU

1.2001060850.2191.7502.8752.3751.938.3752.1882.8133.2501.62501.18701TWA 16UU2.38015301230.2192.0003.5003.0002.500.4382.8133.6254.0002.00001.50001-1/4TWA 20UU3.46018501480.2812.5004.1253.5002.875.5003.2504.0004.7502.37501.75001-1/2TWA 24UU6.83030402430.4063.2505.2504.5003.625.6254.0635.0006.0003.00002.12502TWA 32UU

TWA 20 UU

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blank

size

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UU

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seals on both sides

SKblank standard

SK anti-corrosive

1inch = 25.4mm1lbs�0.454kg1lbs�4.448N

* Provided with push-in oil fitting for 1/4" to 1/2" sizes. Sizes from 5/8" to 2" offer a 1/4-28tapped hole with a plug for adding a fitting if desired.


C-19

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L

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inch lbs.inch.19016096.1562.0001.3121.000.750.188.8132.5001.625.8125.43701/4TWA 4WUU.250240150.1562.2501.4371.125.875.188.9382.7501.750.8750.50003/8TWA 6WUU.510580370.1562.5001.6881.3751.125.2501.2503.5002.0001.0000.68701/2TWA 8WUU

1.0001000640.1883.0002.1251.7501.437.2811.6254.0002.5001.2500.87505/8TWA 10WUU1.2001180750.1883.5002.3751.8751.563.3131.7504.5002.7501.3750.93703/4TWA 12WUU2.40021201360.2194.5002.8752.3751.938.3752.1886.0003.2501.62501.18701TWA 16WUU5.00030601970.2195.5003.5003.0002.500.4382.8137.5004.0002.00001.50001-1/4TWA 20WUU7.80037002370.2816.5004.1253.5002.875.5003.2509.0004.7502.37501.75001-1/2TWA 24WUU

TWA-W TYPE � Double-Wide Block Type �

(Inch Series)

TWA 20 UUW

TWA type

size

double-wide type




SK

blank standard

SK anti-corrosive


* Provided with push-in oil fitting for 1/4" to 1/2" sizes. Sizes from 5/8" to 2" offer a 1/4-28tapped hole with a plug for adding a fitting if desired.


C-20

4-S WFG

M

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oil hole*

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012

TWJ TYPE� Clearance Adjustable Block Type �

(Inch Series)



Co

lbs.

C

lbs.

S

inch

C

inch

B

inch

M

inch

G

inch

T

inch

F

inch

L

inch

W

inch

E

inch

h

inch lbs.inch.0908060.156.7501.3121.000.750.188.8131.1881.625.8125.43701/4TWJ 4UU.12012095.156.8751.4371.125.875.188.9381.3131.750.8750.50003/8TWJ 6UU.248290230.1561.0001.6881.3751.125.2501.2501.6882.0001.0000.68701/2TWJ 8UU.465500400.1881.1252.1251.7501.437.2811.6251.9382.5001.2500.87505/8TWJ 10UU.553590470.1881.2502.3751.8751.563.3131.7502.0632.7501.3750.93703/4TWJ 12UU

1.2001060850.2191.7502.8752.3751.938.3752.1882.8133.2501.62501.18701TWJ 16UU2.38015301230.2192.0003.5003.0002.500.4382.8133.6254.0002.00001.50001-1/4TWJ 20UU3.46018501480.2812.5004.1253.5002.875.5003.2504.0004.7502.37501.75001-1/2TWJ 24UU6.83030402430.4063.2505.2504.5003.625.6254.0635.0006.0003.00002.12502TWJ 32UU

TWJ 20 UU

TWJ type

blank

size

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UU

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SKblank standard

SK anti-corrosive


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C-21

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S

inch

C

inch

B

inch

M

inch

G

inch

T

inch

F

inch

L

inch

W

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E

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h

inch lbs.inch.19016096.1562.0001.3121.000.750.188.8132.5001.625.8125.43701/4TWJ 4WUU.250240150.1562.2501.4371.125.875.188.9382.7501.750.8750.50003/8TWJ 6WUU.510580370.1562.5001.6881.3751.125.2501.2503.5002.0001.0000.68701/2TWJ 8WUU

1.0001000640.1883.0002.1251.7501.437.2811.6254.0002.5001.2500.87505/8TWJ 10WUU1.2001180750.1883.5002.3751.8751.563.3131.7504.5002.7501.3750.93703/4TWJ 12WUU2.40021201360.2194.5002.8752.3751.938.3752.1886.0003.2501.62501.18701TWJ 16WUU5.00030601970.2195.5003.5003.0002.500.4382.8137.5004.0002.00001.50001-1/4TWJ 20WUU7.80037002370.2816.5004.1253.5002.875.5003.2509.0004.7502.37501.75001-1/2TWJ 24WUU

TWJ-W TYPE� Clearance Adjustable Double-Wide Block Type �

(Inch Series)

TWJ 20 UUW

TWJ type

size

double-wide type




SK

blank standard

SK anti-corrosive




C-22

TWD TYPE� Open Block Type �

(Inch Series)

4-S W

h1

F

MG30

hT

L


oil hole*

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.001

2

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part

numbermassstaticdynamic

Co

lbs.

C

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S

inch

C

inch

B

inch

h1

inch

M

inch

G

inch

T

inch

F

inch

L

inch

W

inch

E

inch

h

inch lbs.inch.188290230.1561.0001.688.260.98.688.2501.1001.5002.0001.000.68701/2TWD 8UU.365500400.1881.1252.125.3191.15.875.2811.4051.7502.5001.2500.87505/8TWD 10UU.452590470.1881.2502.375.3861.23.937.3151.5351.8752.7501.3750.93703/4TWD 12UU

1.0101060850.2181.7502.875.5121.481.188.3751.9752.6253.2501.62501.18701TWD 16UU1.98015301230.2182.0003.500.5691.881.500.4372.4853.3754.0002.00001.50001-1/4TWD 20UU2.95018501480.2812.5004.125.6812.121.750.5002.9103.7504.7502.37501.75001-1/2TWD 24UU5.84030402430.4063.2505.250.9332.702.250.6253.6604.7506.0003.00002.12502TWD 32UU

TWD 20 UU

TWD type

blank

size

without seal

UU

seal


seals on both sides

SKblank standard

SK anti-corrosive


* Provided with push-in oil fitting for 1/4" to 1/2" size only. Sizes from 5/8" to 2" offer a 1/4-28tapped hole with a plug for adding a fitting if desired.


C-23

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Co

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C

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S

inch

C

inch

B

inch

h1

inch

M

inch

G

inch

T

inch

F

inch

L

inch

W

inch

E

inch

h

inch lbs.inch.400580370.1562.5001.688.260.98.688.2501.1003.5002.0001.000.68701/2TWD 8WUU.8001000640.1883.0002.125.3191.15.875.2811.4054.0002.5001.2500.87505/8TWD 10WUU

1.0001180750.1883.5002.375.3861.23.937.3151.5354.5002.7501.3750.93703/4TWD 12WUU2.00021201360.2184.5002.875.5121.481.188.3751.9756.0003.2501.62501.18701TWD 16WUU4.20030601970.2185.5003.500.5691.881.500.4372.4857.5004.0002.00001.50001-1/4TWD 20WUU6.70037002370.2816.5004.125.6812.121.750.5002.9109.0004.7502.37501.75001-1/2TWD 24WUU

TWD-W TYPE� Double-Wide Open Block Type �

(Inch Series)

TWD 20 UUW

TWD type

size

double-wide type




SK

blank standard

SK anti-corrosive




slide guide stroke ball splinerotary ball splball spline … · 120 160 200 400 800 1,200. c-5...

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