company certification brand size catalog-2013.pdf · taiwan cheng mao precision sealing 1 company...

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

1

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.


2

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


3

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.


4

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.


5

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


6

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 ⇔⇔⇔⇔


7

L type⇐⇐⇐⇐

R Type =>


8

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


9

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


10

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

)


11

Shaft RPM, surface speed, and seal material application:


12

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.


13


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


14


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


15


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.


16


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


17


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.


18


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


19


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


20


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


21


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.

company certification brand size catalog-2013.pdf · taiwan cheng mao precision sealing 1 company...

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