Definition and Function of Oil Seals
Oil seals are sealing elements used to close rotating or fixed shaft sealing devices. Their main function is to prevent lubricating oil, liquid, or gas from leaking from the shaft seal while blocking dust, dirt, and other external contaminants from entering the mechanical system. Oil seals are usually made of elastic materials (such as rubber or polyurethane) and metal components (such as springs) to achieve high sealing efficiency. Types of Oil Seals 1. Static Oil Seals: Used for sealing between stationary parts, such as flanges and joints, typically to prevent liquid leakage or contaminants from entering. 2. Dynamic Oil Seals: Used for sealing rotating or reciprocating parts, maintaining sealing effectiveness during shaft rotation or reciprocating movement, suitable for pumps and motors. 3. Double Lip Oil Seals: Provide dual sealing effects with inner and outer sealing lips effectively blocking liquid leakage and external contaminants, suitable for highe...