Hebei Hankai mechanical seal repair kit

The designation 20x35x7 refers to the dimensions of the oil seal. The numbers represent the inner diameter (20 mm), outer diameter (35 mm), and the thickness (7 mm) of the seal. The design of an oil seal is critical, as it must fit precisely to ensure a proper seal and prevent the ingress of dirt, dust, or moisture. The choice of material used for these seals often includes rubber compounds that enhance flexibility and resilience. Common materials include nitrile rubber (NBR), fluorocarbon rubber (FKM), and silicone, each chosen based on the specific application and operating conditions.

Both dust seals and oil seals are integral components in machinery across various industries. Understanding the differences between them is vital for selecting the appropriate seal for your specific application. While dust seals protect against contaminants, oil seals ensure that lubricants stay where they belong, preventing leaks and maintaining efficiency. By choosing the right type of seal, you can enhance the performance and longevity of your equipment, ultimately leading to cost savings and increased reliability.

3. Wear Rings These components help reduce friction between the moving parts of the hydraulic cylinder. Wear rings protect the seals from physical damage and provide smoother operation, promoting longevity.