论文部分内容阅读
滚动轴承的滚道面上一旦产生压痕,有时会以压痕为起点形成龟裂,由于裂纹的传播导致轴承早于计算寿命出现剥离。因此,日本铁道综研以新干线用车轴轴承为对象,在轴承内圈的滚道面上加工出人工压痕,实施轴承旋转试验,如表1所示。使用1种洛氏压痕(指洛氏硬度计钢球加工的人工压痕),
Once an indentation is generated on the raceway surface of a rolling bearing, a crack may sometimes be formed starting from the indentation, and the bearing peels earlier than the calculated lifetime due to the propagation of the crack. Therefore, the Japan Railway Research Institute to Shinkansen axle bearings as the object, the bearing inner raceway surface artificial indentation, the implementation of bearing rotation test, as shown in Table 1 below. Use a Rockwell indentation (refers to the Rockwell hardness of artificial ball indentation),