Oil seal is the general name of general seal, referred to as lubricating oil seal. It is a mechanical part used to seal lubricating grease (oil is the most common liquid substance in the transmission system, generally also refers to the general meaning of liquid substance). It isolates the components that need to be lubricated in the transmission components from the output components to avoid oil leakage. Static seal and dynamic seal (general reciprocating motion) are called oil seal.

The representative form of oil seal is TC oil seal, which is a double lip oil seal, and the self tightening spring is completely covered by rubber. Generally speaking, oil seal usually refers to TC framework oil seal

According to the sealing function, characteristics, structural type, working state and sealing mechanism of oil seal, it can be divided into various forms and different names. However, the lip seal of rotating shaft is usually called oil seal, and the seal of static seal and dynamic seal (general reciprocating motion) is called seal .

The representative form of oil seal is TC oil seal, which is a double lip oil seal. The self tightening spring is completely covered by rubber. Generally speaking, oil seal usually refers to TC framework oil seal