静压回转轴的回转振摆静压轴承具有平均效应作用,因而,回转轴的回转精度比轴和轴承的加工精度高一级,最高精度可达0.01微米。但是,滚动轴承就很难获得这样高的回转精度,这是由于滚动轴承回转轴的回转精度与轴和轴承的加工精度成正比。组成滚动轴承轴系的轴、滚动体、内外套圈、轴承座相互为固体接触。因而,回转中心的位置取决于各组成零件之 The hydrostatic hydrostatic bearings on the hydrostatic rotary shaft have an averaging effect, so the revolving shaft’s revolving accuracy is one step higher than that of the shaft and the bearing, and the highest precision can reach 0.01 μm. However, the rolling bearing is difficult to obtain such a high slew accuracy, which is due to the slewing bearing slewing ring and shaft accuracy of the bearing is proportional to the machining accuracy. The axis of the rolling bearing shaft, the rolling element, the inner and outer rings, and the bearing seat are in solid contact with each other. Thus, the location of the swivel center depends on the individual components