Since the parts' stiffness and precision of the spindle units are quit high, and the loads are usually not heavy, so the machining error caused by the cutting force is small.

在高速切削机床中，由于主轴单元系统各零件刚度和精度都较高，而负荷却不是很大，主轴因切削力引起的加工误差较小。

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As the core parts for high speed spindle, the dynamic properties of Angle contact ball bearing has important effect on cutting performance and machining precision of whole machine.

角接触球轴承作为高速主轴的核心部件，其动力学特性对整机的切削性能和加工精度有重要的影响。

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The article suggests the requirements for application of online dimension measurement during the machining process according to the actual conditions of NC manufacturing of high-precision parts.

根据精密零件数控加工的实际生产情况，提出加工过程尺寸在线检测的应用需求。

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