The calculated results of rolling bearing stiffness indicate that larger preloading and constant pressure preloading for the rolling bearings of the spindle can improve the stiffness of main spindle.

另外，计算分析了滚动轴承的刚度，认为一定预紧力与定压预紧方式有益于提高主轴刚度。

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The calculated results of rolling bearing stiffness indicate that larger preloading and constant pressure preloading for the rolling bearings of the spindle can improve the stiffness of main spindle.

另外，计算分析了滚动轴承的刚度，认为一定预紧力与定压预紧方式有益于提高主轴刚度。

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