Rear Axle Bearings & Seals 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. The All Balls bearings are a premium EMQ quality, high-speed bearing featuring low drag, double-lip rubber seals which provide superior exclusion of water and dirt and improved grease retention. The All Balls, 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. The steel garter spring guarantees constant pressure on the axle shaft over the life of the seal.