The differential is part of the rear-axle-housing assembly, which includes the differential, rear axles, wheels and bearing.
差速器是后桥壳总成的一个部件，后桥壳总成包括差速器、后桥、车轮和轴承。
2
The result of welding experiment and production practice show that the welded rear-axle housing have quality stability and high precision and fatigue strength.
通过试验和生产验证，所焊接的后桥壳体精度高、抗疲劳性能好、质量稳定。
3
The process of vacuum electron beam welding for rear-axle housing semiaxis of coach was introduced and the major problems in the process of welding was analysed.