旋转精度是指轴类工件在装配后，在无负载、低速旋转的条件下，工件前端的径向跳动和轴向窜动量的大小。
本动力头具有高速、高旋转精度，承载力、刚性大，运转可靠稳定的优点。
The unit head has the advantages of high speed, high rotation accuracy, large bearing capacity and rigidity, as well as reliable and stable operation.
提高主轴的加工精度和降低表面粗糙度，可提高主轴的旋转精度和减少主轴的磨损。
High machining precision and low surface roughness may improve the main spindle rotating precision and decrease the wear of the main spindle.
有源磁力轴承在高转速场合应用时，由于转子的不平衡响应，降低了转子的旋转精度。
The unbalance of rotor deteriorates the rotors rotating precision when active magnetic bearings are used in high speed condition.
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