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Material Selection
Shaft and Housing Recommendation
O-rings & Rubber Packing
1. LIP MATERIAL :
The enviroment in which a seal will operate should be determined before selecting the sealing or lip matrial. It must consider about the functin of the seal as follows:
* Ratings :
1. very good
2. good for most application
3. fair, can be used if other materials available but otherwise not recommended
4. not recommended

CODE
NR
SBR
EPDM
CR
NBR
ACM(PA)
SI
FPM
Properties\Compound Natural Rubber Styrene Butadiene Copolymer Ethylene Propylene Rubber Poly-chloroprene Nitrile Rubber Poly-acrylate Silicone Rubber Fluoro Rubber (Viton)
Tensile 1 2 3 1 1 4 4 1
Durometer 30-100 40-100 30-80 40-90 30-100 40-90 30-90 55-90
Rebound 1 3 2 1 2 3 3 3
Abrasion Resistance 1 1 2 2 1 3 4 3
Impact Strength 1 1 2 1 2 4 4 3
Gas Impermeability 3 3 3 2 2 3 4 2
Oxygen Resistance 3 3 2 2 3 2 1 1
Ozone Resistance 4 4 1 2 4 2 1 1
Weathering esistance 3

3

1 2 3 2 1 1
Heat Resistance 4 3 1 2 3 2 1 1
Low Temperature 2 3 2 3 3 4 1 2
Water Resistance 1 2 1 2 2 4 2 2
Oil and Fuel Resistance 4 4 4 2 1 1 3 1
Animal, Vegetable Oil 3 3 2 2 1 1 2 1
Alcohol Resistance 2 2 2 1 2 2 2 2
Alkaline Resistance 3 3 2 1 2 4 4 2
Acid Resistance 2 2 1 1 1 3 3 1
Aliphatic Solvent 4 4 4 2 1 1 4 1
Aromatic Solvent 4 4 4 2 1 1 4 1
Oxygenated Solvent 2 2 1 4 4 4 3 4
CODE NR SBR EPDM CR NBR ACM(PA) SI FPM
* Other materials like: P.T.F.E (Teflon), Butyl, Vamac, Felt, and Leather are also available for seals and other molded products.
* Please contact TCK for your specific applications and requirements.
 
 
2. METAL CASE AND SPRING :
The other major components of an oil seal are the metal case and garter spring.
 
CASE
SAE. NO AISI NO. APPLICATION COST
1008~1010 1008~1010 GENERAL LOW
SAE 30304 304 SPECIAL CORROSION RESISTANCE HIGH
The metal case generally is produced from carbon steel for general applications in oil or grease. For special applications when sealing sea water for corrosive fluids for gases, stainless steel can be applied at an increase in price. Other metal case like: Aluminum case, Brass case fare available for your specific applications and requirements.
 
SPRING
SAE. NO AISI NO. APPLICATION COST
1070~1080 1070~10880 GENERAL LOW
30304 304 SPECIAL CORROSION RESISTANCE HIGH
C5210R C5210 CORROSION & AGING RESISTANCE HIGHER
For the garter spring , piano wire is used for general applications. Wherre corrosion resistance or extreme heat resistance is required, stainless steel is available.
 
 
 
No.5-20, Sher-wei St., Sher-wei Village, Fuh Sing Hsiang, Changhwa, Taiwan
TEL:886-4-7762466FAX:886-4-7762366E-mail:,
 
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