This wheel hub seal ring, manufactured by Corteco, seals the interface between the rotating hub and the stationary axle housing on the front axle of a tractor. It prevents lubricant loss from the hub cavity and blocks the ingress of dirt, water, and debris into the bearing assembly. A compromised seal allows grease to escape and contaminants to enter, leading to premature bearing wear and potential hub failure. This component is machined to match the original seal groove geometry, ensuring it seats correctly against the housing bore and the shaft without requiring additional shimming or adapters. On installation, ensure the sealing lip is not damaged and that the hub bore is clean and free of burrs.