The customary title of general seals is simply the seal of lubricating oil. Oil seal is generally divided into haplotype and assembly type, assembly type is the skeleton and lip material can be freely combined, generally used for special oil seal. As the name implies: oil seal is used to seal the oil (oil is the most common liquid material in the transmission system, also refers to the general meaning of liquid material) of the mechanical components, it will need to be lubricated in the transmission parts and the output parts isolated, so as not to let the lubricating oil leakage. From the sealing effect of the oil seal, characteristics, structure type, working state and sealing mechanism can be divided into various forms and different names, but it is customary to call the rotary shaft lip seal ring oil seal, static seal and dynamic seal (general reciprocating motion) with seals called seals. The representative form of oil seal is TC oil seal, which is a kind of rubber completely covered with self-tightening spring double-lip oil seal. We have over two thousand models of black NBR available from stock