针对H型动压气体轴承端面平面度指标问题,从轴承端面研磨的定位夹具、工艺方法入手,分析了研磨工艺方法对端面平面度带来系统误差,并根据加工时的装配状态及操作方法,提出了改进措施,从而达到进一步提高平面度指标的目的。 In view of the flatness index of H type dynamic pressure gas bearing endface, the paper introduces the positioning fixture and the technological method of grinding the end face of the bearing, and analyzes the systematic error caused by the grinding process method to the flatness of the end face. According to the assembly state and operation method during machining, Put forward the improvement measures, so as to achieve the purpose of further improving the flatness index.