楼主: tuping1234
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轴承位-配合面的形状和位置公差-疑问讨论 |
点评
普通机床也有精度啊,定位精度和重复定位精度总要提前设定吧
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点评
你仔细查查圆柱度数据,再查对应等级标准。我大概翻了下,4级不大直径小于2um
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