Hebei Hankai inner hub seal

3. Spring-Lip Seals Incorporating a spring within the design allows these seals to maintain consistent pressure against the shaft, enhancing sealing effectiveness. They are often used in applications with variable shaft movements.

Wiper oil seals, commonly referred to as lip seals or simply oil seals, are mechanical seals used to keep lubricants in and contaminants out of machinery. They are typically made from durable materials such as rubber or elastomers, designed to withstand high pressures and temperatures. The primary function of these seals is to maintain a barrier that prevents the escape of oil, while also preventing dirt, dust, and other contaminants from infiltrating the system.

An oil seal, also known as a lip seal or rotary seal, is a device used to seal the junction between stationary and moving parts in machinery. Its primary function is to prevent the leakage of lubricants, such as oil or grease, while simultaneously barring dirt and contaminants from entering the system. This is crucial for maintaining the efficiency and longevity of mechanical components.