Effect of Ball Off Size on Fatigue Life of Deep Groove Ball Bearing

摘要：

　　Aiming at the inevitable machining errors in manufacturing processing,a modified life model,which is composed of regular Lundberg-Plamgren life model,Miner’s linear cumulative damage theory and the concept of equivalent load state,for deep groove ball bearing was presented.Based on the proposed model,the effects of ball off size under different working conditions were investigated.In combination with machining error distribution theory,statistical analysis of bearing life was conducted.At last,16008 deep groove ball bearing was selected to illustrate the modified life model.Through numerical calculation,the following conclusions can be drawn: 1) The life factors are normally distributed when the ball off sizes have normal distribution; 2) With the increasing of external load,the effect of ball off size on bearing fatigue life is weakened; 3) The effect of ball off size on bearing fatigue life is most obvious when bearing operates in a small negative radial clearance.

关键词： Ball off size equivalent load state life model ball bearing statistical analysis

作者: Xiwei Zhou Hua Xu Xianzhi Xiong Lin Wang

作者单位: Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System Xian Jiaotong University Xian 710049, China

会议类型: 国际会议

会议名称: 2013 International Symposium on Assembly and Manufacturing(2013装配与制造国际专题会议)

会议地点: 西安

会议语种:英文

页码: 64-68

在线出版日期: 2013-07-01（万方平台首次上网日期，不代表论文的发表时间）