Hebei Hankai defender rear hub seal

Hydraulic cylinder seals are designed to prevent hydraulic fluid from leaking out of the cylinder while keeping contaminants from entering. A typical hydraulic cylinder consists of several seals, including the rod seals, piston seals, and wear bands, each playing a critical role in maintaining optimal performance. The rod seal prevents fluid from leaking along the cylinder rod, while the piston seal ensures that pressure is maintained within the cylinder during operation. Wear bands, on the other hand, function to reduce friction and wear between moving parts.

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.