Spindle is a key unit of the high-speed machine tool, while the interference fit between spindle and motor rotor is one of the most important factors influencing the performance of the spindle unit.
主轴是高速机床的核心部件，机床主轴与电机转子间过盈配合特性是影响主轴性能的重要因素。
In order to implement machining with high speed, high-class machining center is required at first and the spindle unit is the heart part of machining center.
为了实现高速加工，首先必须有高质量的加工中心，主轴部件则是加工中心的“心脏”部件。
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