Reducing friction in an ATV's bearings is often important for efficiency –to reduce wear, to facilitate extended use at high speeds and to avoid overheating and premature failure of the bearing. Essentially, a bearing can reduce friction by virtue of its shape, by its material, by separating the surfaces with an electromagnetic field or by introducing and containing a fluid between surfaces. Quadboss' bearing and seal kits are designed to replace the OEM with higher quality materials and construction.

Replace those loose-fitting ball bearings with Quadboss’ durable and long-lasting tapered bearings. Quadboss Bearings and Seal Kits come complete with upper and lower tapered bearings, cups and seals. Upper and lower seals are usually included in most kits.

There are several types of Quadboss Bearings applicable for any ATV application. The Quadboss A-Arm Bearing and Seal Kits are especially designed to replace worn out rubber bushings and provide better, greater suspension function. The Quadboss Crankshaft Bearing and Seal Kits feature Koyo precision Japanese crank bearings plus a carbon/fluorocarbon pad on the seal lip and stainless steel garter springs. The QuadBoss Differential Bearing and Seal Kits contain all of the bearings and seals required to service an ATV differential. Another Quadboss bearing is the QuadBoss Tie Rod Assembly Upgrade Kit that upgrades famous and recent sport and utility ATVs –from the failure-prone 10mm tie rod assemblies to the Quadboss Heavy-Duty 12mm tie rod assemblies. There’s also the QuadBoss Wheel Bearing and Seal Kit that contains all the bearings and seals necessary to re-fit a wheel. Containing the inner and outer tie rods and jam nuts that are engineered to repair loose and worn tie rod ends are the QuadBoss Tie Rod End Kits. The QuadBoss Shock Bearing and Seal Kits has all the basic bearings, seals, spacers and pins to repair ATV’s shock bearing factory specs.

ATV Bearings provide premium quality, high speed bearing with low drag. Its triple lip rubber seals supply superior exclusion of water and dirt with improved grease retention. Grab the best Quadboss Bearings and Seal Kits today.