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本文介绍了支承内孔磨滚道时用的电磁无心夹具的结构，提供了该厂确定支承参数的经验数据和计算公式，列举了支承内孔磨滚道的质量状况。附图3幅。表1个。
This paper introduces the structure of the electromagnetic centerless jig used to support the inner raceway and provides the empirical data and calculation formula for the factory to determine the support parameters. The quality condition of the bearing raceways is listed. Figure 3 Figure. Table 1.