iving axle's structure, determines the overall project design; Finally to the host,the driven bevel gear, the differential device circular cone gear, the rear axle shaft gear, full-floating axle shaft and the banjo housing's intensity carried on the examination as well as has carried on the life examination to the supporting bearing.РThis design has the following merit: What because uses the central single stage deceleration driving axle, causes the entire rear axle of car the structure to be simple, the fabrication technology is simple, thus big reduced the production cost. And, the arc cusp gear's single stage main gear box raised the rear axle of car transmission efficiency, enhanced the transmission feasibility.Р key words: Driving axle,final drive,differential,axle shaft,axle housing