This axle is developed based on the ZF technology of Germany. It can be equipped on luxurious and high—class buses. It has the advantage of low noise and steady transmission. Vacuum electronic cluster welding is adopted on the welding of axle heads and the middle part of axle housing to make sure that the quality of axle housing is steady and reliable. It can be used with leaf spring suspension and air suspension. According to the requirement of customers, friction lining without asbestos., the clearance self—adjusting arm and ABS can be equipped.