锥轴颈面的磨损与损坏这主要由半轴与制动毂的配合状态不良引起。按要求,半轴锥轴颈与制动毂锥孔接触面积应不小于理论接触面积的75%;而由于锥度加工不准确、磨损变形或锥面间夹入杂物等,使锥孔与轴的接触面积明显减少,结合力减弱,从而加重了连接键的负荷。当轴的旋转方向发生变化时,键被推来推去,制动毂锥孔与 Tapered shaft neck wear and damage This is mainly caused by poor engagement of the half shaft and the brake hub. According to the requirement, the contact area between the semi-shaft taper shaft and the taper hole of the brake hub should not be less than 75% of the theoretical contact area. Because of the inaccurate taper machining, the wear deformation or the inclusion of debris among the taper surfaces, The contact area is significantly reduced, the weakened bond, thus increasing the load on the bond. When the axis of rotation changes, the key is pushed to push the brake hub taper hole and