This wheel hub seal ring from Corteco retains lubricant inside the hub assembly and prevents contaminants from entering the bearing cavity. It is installed in the front axle of the host vehicle, seated between the rotating hub and the stationary spindle. A worn or hardened seal allows grease leakage and dirt ingress, which accelerates bearing wear and can lead to hub failure. The seal is manufactured to match the original housing bore and shaft dimensions, ensuring correct interference fit without the need for shimming or adapters. On installation, inspect the sealing surface on the spindle for grooves or pitting, and replace the seal if any damage is found.