机床主轴轴承

 二维码 1852

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 机床主轴轴承是专为机床主轴设计的特殊角接触球轴承,其主要特点是高精度,高转速,能提供良好的轴系刚性,以满足机床精密加工的需要。为了提高轴承的刚性和回转精度,常在装配时给轴承内、外圈加一预载荷,使轴承内、外圈生产轴向相对位移,消除轴承的游隙,使滚动体与内、外圈滚道产生初始的接触弹性变形,这种方法叫预紧。有预紧力成对安装的轴承,可以提高整个机械结构的载荷容量、刚性、旋转精度。

The machine tool spindle bearing is a special angular contact ball bearing specially designed for the machine tool spindle. Its main features are high precision and high speed, which can provide good shaft rigidity to meet the needs of precision machining of machine tools. In order to improve the rigidity and rotation accuracy of the bearing, a preload is added to the inner and outer rings of the bearing during assembly, so that the inner and outer rings of the bearing are axially displaced, relative to each other, eliminating the clearance of the bearing and thus making a rumbling motion in the inner and outer rings, causing an initial elastic deformation during contact. This method is called preloading. Bearings that are preloaded in pairs can increase the load capacity, rigidity, and rotation accuracy of the entire mechanical structure.


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