各种机械使用的铜套或钢套,套与座孔一般为过盈配合,在常温下压入后套的内孔将收缩。为保证套与轴的动配合间隙,常采用下列两种办来解决:(1)套内孔留余量,压入座孔后再加工至需要的尺寸;(2)考虑套压入座孔的收缩量、放大孔径,加工成成品后压入座 A variety of mechanical use of copper sleeve or steel sleeve, sleeve and seat hole is generally interference fit, at room temperature after the sleeve into the hole will shrink. In order to ensure the sleeve and the shaft with the dynamic clearance, often using the following two Office to solve: (1) the remaining set of holes in the hole, pressed into the seat hole and then processed to the required size; (2) Volume, enlarge the aperture, processed into finished press into the seat