company certification brand size catalog-2013.pdf · taiwan cheng mao precision sealing 1 company...
TRANSCRIPT
COMPANY.......................................................................................................1
CERTIFICATION ......................................................................................1
BRAND.....................................................................................................1
INVESTMENT...........................................................................................1
PRODUCT SPECIFICATIONS ........................................................................2
MATERIAL ...............................................................................................3
SIZE..........................................................................................................3
STANDARD..............................................................................................3
EQUIPMENTS ..........................................................................................3
OIL SEAL CHARACTERISTICS .....................................................................4
Seal I.D. Tolerance Chart - Inch .............................................................5
Seal O.D. Tolerances Chart – Inch.........................................................5
Seal Width Tolerances Chart – Inch ......................................................5
HYDRODYNAMIC FEATURES – HELIX DESIGNS........................................6
W type ⇔⇔⇔⇔ .................................................................................................6
L type⇐⇐⇐⇐....................................................................................................7
R Type =>.................................................................................................7
RUBBER CHARACTERISTICS ......................................................................8
Common used rubbers: .........................................................................8
Rubber properties: .................................................................................8
Rubber specifications: ...........................................................................9
Material Temperature Range - Fahrenheit (°F): ..................................10
Material Temperature Range - Celsius (°C): .......................................10
Shaft RPM, surface speed, and seal material application: ................ 11
TCS SEALS DESIGN PRINCIPLES..............................................................12
TCS Oil Seals Taiwan Cheng Mao Precision Sealing
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COMPANY
TCS Seals, CHENG MAO PRECISION SEALING CO., LTD is one of leading
oil seals manufacturers with 30 years experiences in oil seals design.
Professional with high quality skills and experiences in the areas of oil seals,
packings, u-cups, gaskets, rubber parts and o-rings. TCS is capable of
producing sealing products from design, drawings, researching, development,
testing, and making molds to finished products independently.
CERTIFICATION
ISO / TS16949:2009, design and manufacture of oil seals.
BRAND
TCS
INVESTMENT
5,000 square meters of the factory buildings.
Invested US$3,500,000 in hardware and software devices as for
manufacturing facilities.
TCS Oil Seals Taiwan Cheng Mao Precision Sealing
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PRODUCT SPECIFICATIONS
Oil Seals for Automotive Applications
1) Power Steering Seals 2) Heavy Duty Wheel Seals
3) A/C Compressor Seals 4) Crankshaft and Camshaft Seals 5) Shock Absorber Seals
6) Gas Spring Seals 7) Bellows and Dust Boots 8) Alternator Seals
9) Transmission Seals
Oil Seals for Industrial Applications
1) Rotary Shaft Seals 2) High Pressure Seals 3) Reducer Seals
4) Motor Seals 5) Pneumatic Tool Seals 6) V-Seals (VA, VS, VL, VE)
7) Teflon Seals 8) Axial Face Seals 9) Bonded Seals
10) End Caps 11) Oil Gauge Seals 12) Bearing Unit Seals
Oil Seals for Agricultural, Constructional, Mining Applications
1) Oil Seals for agricultural equipments
2) Oil Seals for constructional equipments 3) Oil Seals for mining equipments
Seals for Pneumatic or Hydraulic Applications
1) Pneumatic Seals 2) Hydraulic Seals
3) Rod Wipers 4) Fabric reinforced OD Seals 5) O-Rings, X-Rings, Wear Rings, O-Ring Kits, O-Ring Cords
Oil Seals for Consumer Electronics Applications
1) Laundry Washer Seals
2) Squeezer Seals
TCS Oil Seals Taiwan Cheng Mao Precision Sealing
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MATERIAL
NBR (Nitrile)
HNBR (Hydrogenated NBR)
EPDM (Ethylene Propylene Diene)
VMQ (Silicone)
FKM (Fluorocarbon)
PTFE (Polytetrafluoro Ethylene)
ACM (Polyacrylate)
PU (Polyurethane)
CR (Chloroprene Rubber)
SIZE
Metric
Inch
STANDARD
JIS
ASTM
DIN
BS
SAE
EQUIPMENTS
For material research: tensile testers, hardness testers, oscillating
disc Rheometers, etc.
For design and R&D: seal life testers, radial load testers, etc.
For production: automatic CNC lathes, rubber compound kneaders,
rubber cutters, rubber slicers, low temperature storage, sanding
machines, bonding machines, rubber compression molding
machines, trimming machines, etc.
For QC: Micro-Vu, hardness testers, etc.
TCS Oil Seals Taiwan Cheng Mao Precision Sealing
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OIL SEAL CHARACTERISTICS
TC Type
TA Type
Dust lip
Flex section
Spring groove
Garter spring
Trim face
Metal insert
Back chamfer Front chamfer
Outside surface
Lining
Spring retaining lip
Inside fixing clearance Outside fixing
clearance
Seal width
Seal O.D. Lip length
Seal I.D.
TCS Oil Seals Taiwan Cheng Mao Precision Sealing
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Seal I.D. Tolerance Chart - Inch
SHAFT I.D. Tolerance Spring loaded Tolerance
up to 0.500 -0.027 -0.039
0.501~1.000 -0.032 +0.004/-0.008
-0.044 ±0.008
1.001~2.000 -0.035 -0.053
2.001~3.000 -0.040 -0.060
3.001~4.000 -0.048 -0.068
4.001~6.000 -0.056
+0.006/-0.012
-0.076
±0.012
6.001~10.000 -0.062 -0.086
10.001~13.000 -0.070 -0.094
13.001~16.000 -0.078 -0.102
16.001~20.000 -0.086
+0.008/-0.016
-0.110
±0.016
20.001~40.000 -0.120 +0.010/-0.020 -0.157 ±0.020
40.001~ -0.140 +0.012/-0.020 -0.178 ±0.024
Seal O.D. Tolerances Chart – Inch
Bore Diameter Metal case Tolerance
Rubber
covered
case
Tolerance G type Tolerance
up to 1.000 +0.006 +0.010 ±0.003
1.001~2.000 +0.007 +0.012
2.001~3.000
+0.004
+0.008
±0.003
+0.014
3.001~4.000
±0.002
+0.010 +0.016
±0.004
4.001~6.000 +0.005
+0.016
6.001~8.000 +0.006 +0.003/-0.002 +0.012
+0.018
8.001~10.000 +0.004/-0.002 +0.014
±0.004
+0.020
+0.006/-0.004
10.001~20.000 +0.006/-0.002 +0.016 ±0.005 +0.022
20.001~40.000 +0.008/-0.002 +0.018 ±0.006 +0.024
+0.008/-0.004
40.001~60.000
+0.008
+0.010/-0.002 +0.020 ±0.007 +0.026 +0.010/-0.004
Seal Width Tolerances Chart – Inch
Width Tolerance
All width +0.015/-0.015
TCS Oil Seals Taiwan Cheng Mao Precision Sealing
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HYDRODYNAMIC FEATURES – HELIX DESIGNS
The helix can improve the performance of sealing lip by pushing the medium
back into the fluid reservoir. The helix applies to all rotary seals. There are
three types available: Bi-directional (W Type) and Single direction (R Type and
L Type):
W type ⇔⇔⇔⇔
TCS Oil Seals Taiwan Cheng Mao Precision Sealing
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L type⇐⇐⇐⇐
R Type =>
TCS Oil Seals Taiwan Cheng Mao Precision Sealing
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RUBBER CHARACTERISTICS
Common used rubbers:
Rubber properties:
Type Advantages Limitations
� Cost efficient & prevalent
� Abrasion & tear resistant NBR
� Water & oil resistant
� Poor weather and ozone
resistance
� Applicable for most grease / oil
� Excellent under high temp. FPM
(VITON) � Long usage life
� Expensive
� Moderate performance
under low temp.
� Mineral & gear oil � Moderate under low temp.
� Aging & tear resistant � Not for dry-running
� Applicable for high-speed
rotation
� Not usable in aqueous
media ACM
� Better than NBR under high
temp.
� More costly than NBR
SIL � Weathering/ozone resistant � Poor oil / fuel resistance
� Chemical resistant
� Electrical isolation EPDM
� Weathering/ozone resistant
� Not usable in gasoline
� Excellent for dry-running
� Chemical resistant � High thermal expansion
PTFE
� Low coefficient of friction
Type Name ASTM
NBR Nitrile rubber BF,BG,BK,CH
FPM (VITON) Fluorocarbon rubber HK
ACM Polyacrylate rubber DF,DH
SIL Silicone rubber FC,FE,GE
EPDM Ethylene propylene rubber BA,CA,DA
PTFE Polyterafluoro ethylene
PU Urethane rubber BG
AEM Ethylene/Acrylic rubber (VAMAC) EE,EF,EG
CR Chloroprene rubber BC,BE
TCS Oil Seals Taiwan Cheng Mao Precision Sealing
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Rubber specifications:
NBR FPM ACM SIL EPDM PU CR
Tensile Strength ● ● ▼ ▼ △ ◎ ●
Elongation ● ▼ ▼ ◎ ● ◎ ●
Rebound Resistance ● △ △ △ ● ◎ ◎
Tear Resistance ● △ ▼ ▼ △ ◎ ●
Abrasion-Resistance ◎ △ △ ▼ ● ◎ ●
Impact Strength Resistance ● △ ▼ ▼ ● ◎ ◎
Gas Impermeability
Resistance ● ● △ ▼ △ ● ●
Ozone Resistance ▼ ◎ ● ◎ ◎ ● ●
Weathering Resistance △ ◎ ● ◎ ◎ ● ●
Flame Resistance ▼ ◎ ● ◎ ◎ ● ●
Heat Resistance △ ◎ ● ◎ ◎ △ ●
Low Temperature Resistance △ ● ▼ ◎ ● ● △
Oil and Fuel Resistance ● ◎ ● △ ▼ ● ■
Animal and Vegetable Oil
Resistance ◎ ◎ ◎ ■ ● ● ●
Alcohol Resistance ● ● ● ● ■ ■ ◎
Alkaline Resistance ● ■ ▼ ▼ ● ▼ ◎
Acid Resistance ● ● △ △ ● ▼ ●
Aliphatic-solvent Resistance
﹣Aliphatic ◎ ◎ ◎ ▼ ▼ ● ●
﹣Aromatic ■ ◎ △ ▼ ▼ ▼ △
Oxygenated-Solvent
Resistance ▼ ▼ ▼ △ ◎ ▼ ▼
Water Resistance ● ● ▼ ● ◎ △ ● ◎Excellent ●Good ■Suitable △Limited ▼Poor
TCS Oil Seals Taiwan Cheng Mao Precision Sealing
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Material Temperature Range - Fahrenheit (°F):
-67
-1314
-67 -67 -58-40
212
482
302
437
302
482
212
-80
-30
20
70
120
170
220
270
320
370
420
470
NB
R
FP
M (
VIT
ON
)
AC
M
SIL
EP
DM
PT
FE
CR
Material Temperature Range - Celsius (°C):
-55
-25-10
-55 -55 -50-40
100
250
150
225
150
250
100
-70
-40
-10
20
50
80
110
140
170
200
230
260
NB
R
FP
M (
VIT
ON
)
AC
M
SIL
EP
DM
PT
FE
CR
Te
mp
era
ture
(°F
) Te
mp
era
ture
(°C
)
TCS Oil Seals Taiwan Cheng Mao Precision Sealing
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Shaft RPM, surface speed, and seal material application:
TCS Oil Seals Taiwan Cheng Mao Precision Sealing
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TCS SEALS DESIGN PRINCIPLES
Type Illustration Features
SA
TA
VA
A
KA
Additional inner metal case to
reinforce the structure.
SB
TB
VB
B
KB
Precision ground metal case O.D.,
precise and stable for installation.
Suitable for fine surfaced housing.
SC
TC
VC
C
KC
Rubber covered O.D., improve OD
sealing ability at the housing.
TCS Oil Seals Taiwan Cheng Mao Precision Sealing
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Type Illustration Features
DB
DC
DG
D
DM
Two spring-loaded lips on opposite
sides, designed for separating two
different media
SEA
SEB
SEC
E
SEM
Metal case extends to flex section
for lip reinforcement. Pressure
resistance depends on shaft speed
and run-out
SF
TF
VF
F
KF
Similar to type C, rubber covers the
whole seal to protect internal metal
case from corrosion
TCS Oil Seals Taiwan Cheng Mao Precision Sealing
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Type Illustration Features
SG
TG
VG
G
KG
Similar to type C, outside rubber is
corrugated, suitable for large thermal
expansion housing material or when
the installation is difficult or subject to
damage the O.D. rubber
SH
H
VH
Reversed metal case, suitable for
installation in special housing.
SBJ
TBJ
VBJ
J
KBJ
Special metal case design, for easy
installation/replacement
TCS Oil Seals Taiwan Cheng Mao Precision Sealing
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Type Illustration Features
SL
TL
VL
L
KL
Similar to type B, metal case has
bevel angled edge for alignment
SM
TM
VM
M
KM
Similar to type B, with lead-in
chamfer, rubber covers internal seal
to prevent corrosion
SCN
TCN
N
KMN
Suitable for higher pressure
environment
N1 SCN1
Mid- pressure, rubber covered O.D.
TCS Oil Seals Taiwan Cheng Mao Precision Sealing
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Type Illustration Features
N1 TCN1
Mid- pressure, rubber covered O.D.
SCN2
N2
TCN2
Mid- pressure, metal case O.D.
OSA
OSB
OSC
OSM
Press fit on the shaft and seal the
housing. Available in A,B,C,M types,
single / dual lips and spring /
springless O
OUA
Triple flat-lips design for dusty,
muddy environment
SAP
SBP
P
TBPL
Flange metal case for easy
installation and replacement.
Available in A, B, L types,
single/dual lips, spring/ springless
designs
TCS Oil Seals Taiwan Cheng Mao Precision Sealing
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Type Illustration Features
PA PA
PTFE and helix design, low friction,
chemical and temperature
resistance, suitable for high speed
rotation and dry-running,
PL SA-PL
PTFE lined seals, low friction,
applicable for dry-running, or
reducing lip running temperature.
Available in A, B, C, F, G, M, Z,
N1/N2 types, single/dual lips,
spring/springless designs
TC4
DC4S
DG4J
TC4B
TG4J1
4
KGJB
Reciprocating motion. Type B,M,Z,D
available. Various designs available.
TCS Oil Seals Taiwan Cheng Mao Precision Sealing
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Type Illustration Features
SC4P
TC4P
PS
SCAP
CNB
CNB
GNB
Suitable for reciprocating motion, to
retain internal fluid pressure
UA
UB
UC
U
UM
Triple flat-lips design for dusty, muddy
environment
TXA
X / X1
TX1A
Reversed dust lip, available in B,C,M
types
TCS Oil Seals Taiwan Cheng Mao Precision Sealing
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Type Illustration Features
SZ
TZ
VZ
Z
KZ
Similar to M type, rubber-covered top
face, enhance O.D. sealing ability
SBC
BC / BG
SBG
Rubber covers half of O.D., dual lip
design available
K1 TCK1
Felted wool lined, dust-proof and
provide ventilation
AJ
AO
AJ / AO
/ AP
AP
Suitable in heavy dust, muddy
environment, various designs
available
ST ST
Hub seals, suitable for rigorous
operating conditions. Available in
various designs.
CRS CRS1
Combined with PU, felted wool or
foam to enhance dust-proof function.
Available in various designs
TCS Oil Seals Taiwan Cheng Mao Precision Sealing
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Type Illustration Features
VGA VGA1
Available in various designs
RO SBRO
Special flex section design, suitable
for high run-out conditions. Available
in various designs
EC EC
O.D. sealing cap. G type available
ECA ECA
Similar function to EC type, used in
static sealing. Available in various
designs
PV PVC1
Gas spring seals, G type available.
QF SQF
Rubber and nonwoven covered O.D.,
used where radial space is limited.
Available in single/dual lips,
spring/springless designs
RE RE
Metal case combined with V ring
Prevent dust from the side.
VA
VS
V-
Seal
VL
Prevent dust from the side. All rubber
WS WS
Bonded seals, various designs
available
TCS Oil Seals Taiwan Cheng Mao Precision Sealing
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Type Illustration Features
WP1
Wiper Seal, PU, suitable for
reciprocating motions, to wipe clean
the axis, prevent dirt ingression.
Available in various designs WP
WPB
Wiper Seal, rubber. Available in
various designs
UIP
UOP
UNP
U-Packing. Suitable for reciprocating
motions, PU material. Various designs
available
UIR
UOR
U-P
UNR
U-Packing. Suitable for reciprocating
motions, rubber material. Various
designs available
VS VSB2
Reciprocating motion. G Type
available, various designs available.
Ring O
All rubber. SQ, X, D, V, K, H, R-Rings
available.