Based on the relation between the distribution of supporting system load and operating axis deviation, a linear formula for supporting system fatigue strength and axis deviation is gained. Some helpful conclusions are drawn for further study. 从而根据支承系统载荷分配与运行轴线偏差的关系,得到支承系统疲劳强度与轴线偏差的线性关系式,对关系式进一步分析,得出一些有益的结论。