This oil seal sits at the front axle of the host tractor, where it retains lubricant inside the hub and prevents contaminants from entering the bearing cavity. It is a radial-lip seal that rides on the rotating shaft surface; the lip maintains contact pressure through an integrated garter spring. A worn or hardened seal allows gear oil to leak past the lip, which can lead to bearing starvation and eventual hub damage. The seal is manufactured to the original geometry so it seats correctly in the housing bore without requiring additional shimming or adapters. On installation, ensure the sealing lip is lubricated and that the bore is free of burrs or debris to avoid premature wear.