1. Contaminant Protection Dust lip seals are specifically designed to keep harmful contaminants out of critical areas within machinery. By forming a tight seal, they help to protect bearings, gears, and other internal components from abrasive particles that could lead to premature wear.
The design of oil seals often incorporates a lip that makes contact with the shaft. This lip is engineered to create a tight seal, thus minimizing the chances of leakage. Additionally, some oil seals come equipped with a spring to enhance the sealing force and maintain contact with the shaft, especially in dynamic applications.