Nitrile Butadiene Rubber (NBR, nitrile)

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NBR, also known as nitrile rubber or nitrile, is the most popular material for an oil seal because of its good resistance to many oils and greases, such as mineral grease and hydraulic oil. Depending on their composition, synthetic oils and greases, such as those based on glycol, can damage NBR rubber materials. Depending on the amount of glycol, a PTFE lip seal may be the best choice. NBR is also unable to cope with contact with acids and solvents. The rubber is suitable for oil and grease at temperatures from -35 °C to 100 °C.

Most ERIKS oil seals, such as the types M, MST, R and RST, are made of NBR as standard.

Fluorine rubber (FKM, Viton&#;)

FKM or FPM, which is in well-known brand Viton&#;, can withstand higher liquid temperatures of up to 180 ˚C. FKM is highly resistant to strong acids and bases, as well as to synthetic oils and greases. Glycol-based oil and grease, however, can also damage FKM.

Because of the higher temperature resistance of FKM, this material is also chosen for applications where higher speeds play a role, which raise the temperature at the sealing lip considerably. Usually, using FKM will result in a longer life than using NBR. This compensates the higher price of FKM compared to NBR, as an FKM does not have to be replaced as frequently. The low temperature resistance of standard FKM is limited to -15 ˚C.

Polytetrafluoroethylene (PTFE, Teflon®)

PTFE, which is used in the well-known brand Teflon®, is less commonly used, but it is the preferred material for specific rotating seals in the chemical, food and pharmaceutical industries. This material is notable for having a very low frictional resistance and the best chemical resistance. It can also withstand a very wide range of temperatures in these types of seals; -80 ˚C to 200 ˚C. The shafts on which oil seals with PTFE lips are used require a harder and finer finish. Something like an axle sleeve can also be used to meet this requirement.

EPDM

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EPDM oil seals are less common. They are used in solvent, hot water and steam applications, EPDM resists low temperatures down to -50 °C and UV radiation well. Some types of EPDM are also suitable for higher temperatures up to +150 °C. EPDM oil seals are usually available upon request.

VMQ (silicone)

VMQ, also known as silicone, is also used for oil seals, but this is less common because the mechanical strength of VMQ is low and this material has poor wear-resistance This makes it less suitable for dynamic applications, but it can withstand fairly low and high temperatures from -60 °C to 200 °C. Many types of VMQ are also suitable for contact with pharmaceutical and food products, so VMQ is an option worth considering. VMQ oil seals are usually available on request.

Cross Reference

Find the cross reference of differten oil seal factories/suppliers here! Oil Seals are produced in different factories. The different factories and suppliers therefore use their own product names for the Oil Seals for the different types. We at Oil-Seal-Stocks have a specialized sales team who are happy to help you deliver the right type of oil seal.

To recode a type of oil seal:

  Dichtomatik WA WAS WASY WB WBS WC WCS WAD WBD WAO WBO WCL Anyseals OS-A10 OS-A11 OS-N11 OS-B10 OS-B11 OS-C10 OS-C11 OS-D10 OS-D15 OS-A12 OS-B12 OS-W10 B+S TR-A TR-E TR-U TR-C TR-D TR-B TR-F     TR-K TR-G   Chicago R HMS4 HMSA7   CRW1 CRWA1 CRWH1 CRWHA1 DUPLEX         Elring A AS   B BS C CS AD BD A OF B OF   Eriks R RST RST-D M MST GV GVST R-DUO M-DUO RZV MZV GVP FP Paris G GP GAP L1 L1P L2 L2P G2   GSM     FST BA BA SL BAB SL B1 B1 SL B2 B2 SL BA DUO B1 DUO BA OF B1 OF   Gaco A FA   ABI           SA     Goetze 827 N 827 S 827 SK 822 N 822 S 824 N 824 S 827 D 822 D 827 NO     Kaco DG DGS DGSP DF DFS DFK DFSK DGD DFD DE DC   Kramp CB CC BABSL BB BC DB DC CBD   CD BD DL National 35 32   48 47 45 41           Paulstra IE IEL   EE EEL EEP CSEL IELR   IO     Pioneer W R21 R23   R4 R6 R1   R22   R26     Rolf R RP   RM   RC   RD   LSM     Stefa CB CC CF BB BC DB DC CK BK CD BD   Taiwan / NOK SC TC TCV/TCN SB TB SA TA DC DB VC VB   Vota BA BA SL BAB SL B1 B1 SL B2 B2 SL BA DUO   BA OF B1 OF   Ebele R RP   B1 B1SL B2 B2SL R-DUO   RZV     Kimman KA KAS KAS-P KB KBS KC KCS KA-DUO KB-DUO KAOW KBO KC-PP

 

Different Oil Seal Brands/Factory's

 

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Contact us to discuss your requirements of Oil Seal Tc Type. Our experienced sales team can help you identify the options that best suit your needs.