An automotive clutch release bearing is a major part of auto vehicle. With the development of the auto industry , different types of clutch release bearings have been developed to meet different situation. It has developed from the type of low speed unit with non-self-aligning, free outer ring, cast iron sleeve, integral of the inner ring and the sleeve, today clutch release bearings with self-aligning, rotational inner ring, pressed cover, pressed sleeve or plastic sleeve have been developed to operate under high rotational speed reliably. It achieves components integrality by reducing the weight, cost and also offering a reliable operation and long service life.
