All Balls Racing Front / Rear Wheel Bearing Kit All Balls high-speed bearings are manufactured to Abec 3 precision levels. Triple lip rubber seals keep the grease in and the water and dirt out. Features: Contains all of the bearings and seals required to re-fit a wheel Wheel bearings typically fail from water and dirt contamination. The All Balls wheel bearing was developed in partnership with KML Bearing and is designed for the difficult operating environment of the Power Sport industry Premium EMQ quality, hi-speed-bearing featuring low drag, double lip rubber seals which provide superior exclusion of water, dirt and to improved grease retention Type TC Nitrile Elastomer wheel seals are specifically designed to keep out water and dirt The rubber coated outside diameter creates an optimum seal at the hub Steel garter spring guarantees constant pressure on the axle shaft over the life of the seal