SS_3001电力机车在经过近两年的试运行返厂大修时,对六台牵引电动机进行了解体分析。分析结果表明: (1) 对转轴φ140g_a(+0.052 +0.025)轴承台位进行了若干次测量,其测量点数据分布情况如图1所示。由图1可见,有一部分的测量点已位于图纸下公差之外,为此采取了转轴轴承台位的喷涂修复措施; SS_3001 electric locomotive after nearly two years of trial run overhaul repair, the six traction motor disintegration analysis. The results of the analysis show that: (1) A number of measurements were taken on the bearing of φ140g_a (+0.052 +0.025) bearing. The data distribution of the measuring points is shown in Fig.1. Can be seen from Figure 1, a part of the measuring point has been located outside the tolerance of the drawings, for this reason to take the shaft bearing seat spraying repair measures;