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介绍了ＢＪ３７４大汽车主减速器一级传动付（螺旋锥齿轮）传动的基本条件及对齿面接触区的一般要求，分析了螺旋锥齿轮安装调整规律，提出了切实可行的安装调整方案。
This paper introduces the basic conditions and the general requirements for the contact area of the tooth surface of BJ374 main reducer, and analyzes the adjustment rules of the spiral bevel gear and puts forward the feasible installation and adjustment plan.