197726型滚动轴承密封装置于1999年4月改为迷宫式密封装置,通过1a多轮对磨合试验,发现了多起轴承温声超过规定要求的故障。为保证修车质量,防止热轴事故发生,笔者对上述问题进行了分析研究。1　迷宫式密封装置与轴承外圈、前盖、后挡配合情况(见表1)表1　轴承压装后,轴承与前盖 197726-type roller bearing seal in April 1999 changed to a labyrinth seal, through more than a la-lap on the run-in test and found that the number of bearing temperature exceeds the specified requirements of the fault. In order to ensure the quality of car repair, to prevent the hot axis accident, the author conducted an analysis of the above problems. 1 labyrinth seal and bearing outer ring, front cover, rear cover with the situation (see Table 1) Table 1 bearing pressed, the bearing and the front cover