传动轴在工作时,经常处于高转速下承受较大的扭矩和冲击负荷,伸缩节还要随着悬架的变形而不断地伸长和缩短,与变速器第二轴驱动桥主减速器的主动轴之间的夹角也在不断地改变,因而损坏比较严重。实践证明:传动装置的损坏主要是十字轴万向节的损坏,即十字轴轴颈和滚针轴承的磨损、十字轴轴颈和滚针轴承碗工作面的压痕与剥落。然而,良好的润滑可防止十字轴和滚针的早期损坏,延长万向节的使用寿命。 Drive shaft at work, often at high speeds to withstand greater torque and impact load, telescopic section but also with the deformation of the suspension and continue to stretch and shorten the transmission with the second axle drive axle drive The angle between the axis is also constantly changing, so the damage is more serious. Practice has proved that: transmission damage is mainly cross shaft universal joint damage, that cross-shaft journal and needle bearing wear, cross-shaft journal and needle bearing bowl work face indentation and peeling. However, good lubrication prevents early damage to the spider and needle roller and extends the life of the universal joint.