THE MAIN TYPE OF OIL SEAL

See: Common oil seal sture types;

Common NOK standard oil seal types.

Drawings: Various design types of oil seal outer edge.

THE ROLE OF EACH PART OF THE OIL SEAL

The oil seal is mainly composed of a sealing body, a reinforced skeleton and a self-tightening coil spring.
The sealing body is divided into the bottom, waist, cutting edge and sealing lip according to different parts.

The following picture shows the:Main names and terms for each part of the internal skeleton oil seal with spring and dustproof lip.
The following picture is: