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A skeleton oil seal, also known as a metal casing seal or a rubber oil seal with a metal reinforcing ring, consists of an elastomeric material molded around a metal skeleton. This design provides enhanced stability and durability compared to traditional oil seals. The metal skeleton not only supports the seal but also adds structural integrity, allowing it to withstand higher pressures and temperatures.

2. Inspect Components Before installation, inspect all components for damage or wear. Any damaged parts should be replaced to prevent premature failure.

4. Wipers Wipers or scrapers are designed to keep contaminants away from the seals, reducing wear and prolonging the life of the hydraulic system.