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- Trailer Hub Oil Seal: Trailer hub oil seals are designed to maintain the integrity of the wheel hub assembly on trailers and towed vehicles, preventing the leakage of lubricating oil and the ingress of contaminants. These seals are essential for ensuring the proper functioning and longevity of the wheel bearings and other internal components in trailer applications.
In order for the sealing property of the oil seal you selected to really shine, attention needs to be paid to how it is handled.
In the event of seal failure, it is necessary to take effective countermeasures.

Environmental Considerations and Compliance
In order to use the oil seal reasonably, the following points should be paid attention to:
The metal case serves as the oil seal’s exterior or frame, providing rigidity and strength to the seal. The case material selection depends on the environment in which the seal will operate. Often, the same rubber material used in the seal element covers the case to help seal the exterior of the oil seal in the housing bore.
Rotary Wheel Of Auto Parts
3) Seal numbering system
ACM
Function of hydrodynamic ribs