Oil seals are generally divided into single type and assembly type, assembly type is the skeleton and lip material can be freely combined, generally used for special oil seals. From the sealing role, characteristics, structure type, working state and sealing mechanism of the oil seal, it can be divided into various forms and different names, but it is customary to generally say that the rotary shaft lip sealing ring is called oil seal, and the static seal and the dynamic seal (general reciprocating movement) are called seals with seals. The representative form of the oil seal is the TC oil seal, which is a rubber completely coated double lip oil seal with self-tightening spring, and the oil seal is generally referred to as this TC skeleton oil seal

——subote oil seal

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