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加工属于轴承产品加工工序的重要组成部分，磨加工的水平在很大程度上也会直接影响着NSK轴承的加工水平。必须对磨加工这一工序中有可能引起加工缺陷的因素进行严密控制。其实，在轴承的磨加工环节，由于工件的磨削等级要求高，出现一点点失误都会使得工件表面出现各种缺陷现象，常见的缺陷表现主要有直波线缺陷、螺旋线缺陷等等。下面，就对螺旋线缺陷的产生原因进行详细分析。主要原因由于螺旋线缺陷是十分容易观察的到的，所以一旦轴承表面出现明显的凹凸痕迹，就说明轴承磨加工中形成了螺旋线缺陷。
