The drive-axle,especially the inner main reducer composed of hyperbolic gears,which is working at the foulest place is the most important part of the transmitting system of automobile.

• 车辆传动系的可靠性是车辆保证动力性和行驶性以及燃油经济性的关键部分,而车辆传动装置中最为重要、工作条件最为恶劣的部分就是驱动桥,尤其是其中的主减速器锥齿轮。