By analyzing the push force to pinion gear bearing, the impact of the push force to bearing on the preload of pinion assembly of truck is confirmed.

• 介绍了中空装配式凸轮轴的滚花连接机理,采用有限元数值模拟分析了滚花连接压装力的影响因素,并进行了凸轮和轴体的压装试验。