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The typical construction of a skeleton oil seal includes an outer casing that fits snugly into the housing, a sealing lip that makes contact with the rotating shaft, and a metallic reinforcement that provides rigidity. This combination of materials ensures that the seal is capable of handling the dynamic conditions of machinery while maintaining an effective barrier against the ingress of dirt and the egress of lubricants.

Routine inspections are vital for ensuring that wheel oil seals are functioning correctly. Drivers should look for signs of leakage around the wheel hubs, as well as potential issues such as uneven wear on tires, as these could indicate failing seals. A thorough maintenance routine should include regular check-ups by a qualified mechanic, particularly if the vehicle is often driven under severe conditions.

- Backup Rings These are used in conjunction with O-rings to provide additional support and help prevent extrusion, especially in high-pressure applications.