Clutch Release bearings from NBC are designed for engagement and disengagement of clutch in commercial vehicles and tractors. The bearing reduces friction between the pressure plate levers and the release fork it has a front cover made of special heat-treated steel, for wear resistance during clutch engagement. Special assembly and controls are employed for cup caulking and closing with the front cover to prevent the relative rotation of front cover. Fitted with special accessories to prevent external contamination, the bearing is a sealed unit pack with a lubricant.