Correct installation method of cylinder O-ring seal

Cylinder O-ring When properly installed and fully lubricated, Teng Sihua The seal tells you that the O-ring seal is usually not easy to roll or twist under reciprocating motion, because the contact area with the groove is much larger than the contact area with the sliding surface, and the tension of the cylinder O-ring seal itself prevents distortion. The friction of the groove is static friction. Therefore, in any case, it is greater than the running-in friction and is more likely to keep the cylinder O-ring seal in its groove. However, anything that changes these conditions can cause parts of the cylinder O-ring to slide while part of it rolls, resulting in excessive distortion of the seal. It will eventually lead to damage to the sealing ring. This damage manifests itself as spiral cracks around the cylinder O-ring, which is called spiral damage.

Some sections developed from the cylinder O-ring seal have greater torsional stiffness and are less prone to spiral damage. They can be used to replace O-rings in standard cylinder O-ring grooves when a simple seal is required and helical damage is more likely. For simple double-acting reciprocating sealing situations, the application of O-ring seals far exceeds that of simple cross-section seals. When it comes to cylinderWhen O-ring seals have proven unsatisfactory (or are deemed unsatisfactory) to work, a thicker sealing ring section is usually selected.