航空发动机主轴承保持架兜孔偏磨故障分析

摘要

Aiming at partial wear fault for cage pockets of main bearings for aero -engine,the dimensional measure-ment and reexamination of machining process are carried out.The results show that the reason for eccentric wear of pockets is verticality for beam to end face of pockets,the preventive and improved measures are put forward.%针对航空发动机主轴承保持架兜孔的偏磨故障，进行了尺寸测量和加工过程复查，结果表明，兜孔偏磨的原因是兜孔横梁对端面的垂直度过大，并对此提出了预防改进措施。