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在车辆轴箱中,30-42726和30-2327261M型轴承圆柱形滚子和套圈导向挡边在滑动摩擦条件下承受轴向载荷。轴承滚子端面同套圈挡边接触的摩擦表面的寿命,决定于接触应力、滑动速度、轴承材料的性能和润滑材料的流变性,实质上决定于以这些表面的微观和宏观几何形状为条件的摩擦工况的特点。测量轴承时,看到两种挡边外形偏差的形状:内倾形和外倾形(图1a)。在运用过程
Cylindrical roller bearings 30-42726 and 30-2327261M in the vehicle axlebox bear axial loads under sliding friction conditions. The life of a frictional surface that is in contact with the rim of the collar of the bearing roller depends on the contact stress, the sliding speed, the properties of the bearing material and the rheology of the lubricating material, which essentially depends on the microscopic and macroscopic geometry of these surfaces The characteristics of the friction condition. When measuring the bearing, we saw two deviations in shape: inward and outward (Figure 1a). In the process of using