What Is An Oil Seal

Oil seal is a common term for general seals, which simply means the sealing of lubricating oil. It is a mechanical component used to seal grease (oil is the most common liquid substance in the transmission system, also referring to general liquid substances). It isolates the parts that need lubrication in the transmission components from the output components, so as not to let lubricating oil leak. Seals used for static and dynamic seals (usually reciprocating) are called oil seals.
The representative form of oil seal is TC oil seal, which is a double lip oil seal with self tightening spring completely covered by rubber. Generally speaking, oil seal often refers to this type of TC skeleton oil seal