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在２ＧＤＺ３０ＬＭ 型电主轴中，采用推力磁性轴承 滚动轴承混合型支承结构，其中磁性轴承承受轴向力（主载荷）。介绍了磁性轴承系统的组成及其性能指标，并对装有磁性轴承的电主轴的特点、试验情况作了简要说明。附图５ 幅。
In 2GDZ30LM type electric spindle, the thrust magnetic bearing rolling bearing hybrid support structure, in which the magnetic bearing axial force (main load). The composition of the magnetic bearing system and its performance are introduced. The characteristics of the electric spindle with magnetic bearing and the test results are briefly described. Figure 5 Figure.