航空发动机附件传动轴承故障分析

摘要

Aiming at morphology features of fault for accessory drive rolling bearing of an aero -engine,the damage rea-sons of bearing parts are surveyed and analyzed by using dimension measurement,SEM,metallography detection,materi-al and heat treatment inspection.The results show that the fold defect formed in cold stamping process of steel ball is the ultimate cause for bearing fault.The good effect is acquired by adopting corresponding improvement measures.%针对某航空发动机附件传动轴承的故障形貌特征，利用尺寸检测、扫描电镜、金相检测、材料及热处理检查等手段对轴承零件损坏的原因进行了排查和分析。结果表明：钢球冷冲压过程中形成的折叠缺陷是最终引发轴承故障的诱因，通过采取相应的改进措施，取得了良好效果。