The cage fracture of the deep groove ball bearing used in a high speed motor occurred in short working time.The reason of the fracture of the bearing cage was analyzed by means of surface morphology observation,fracture analysis,chemical composition analysis and test verification.The results show that under the comprehensive action of excessive axial force and insufficient lubrication,the faulty bearing accelerates the wear between the steel ball and the raceway,which leads to the running block of the bearing,and leads to the increase of the force of the steel ball on the cage,resulting in the fracture and failure of the bearing cage at the weak point.The results of this paper provide guidance for the design improvement and use of the same type of failed bearings.
关键词
深沟球轴承/保持架断裂/失效分析
Key words
deep groove ball bearing/cage fracture/failure analysis
维普
万方数据