The structure and function of a rubber seal ring can be summarized as follows:
1. Structural composition: It consists of one or more parts forming an annular cover, fixed to the bearing ring or washer, and forming a contact or narrow labyrinth gap with another ring or washer;
2. Core function: It prevents lubricating oil leakage;
3. It also acts as a barrier against the intrusion of external foreign matter; 4. Ultimately, it ensures the stable operation of mechanical equipment and extends its service life.