Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference (한국윤활학회:학술대회논문집)
- 2004.11a
- /
- Pages.339-349
- /
- 2004
Stress based Fatigue Life Prediction for Ball Bearing
응력 기반 볼 베어링의 접촉피로수명 예측
- Kim Tae-Wan (Research Institute of Mechanical Technology, Pusan National University) ;
- Lee Sang-Don (Graduate School, Precision and Mechanical Engineering, Pusan National University) ;
- Cho Yong-Joo (School of Mechanical Engineering, Pusan National University)
- Published : 2004.11.01
Abstract
The method for fatigue life prediction of ball bearing is proposed applying the algorithm of contact fatigue prediction based on stress analysis. In order to do this, a series of simulation such as initial surface stress analysis, EHL analysis, subsurface stress analysis and fatigue analysis are conducted from the loading at each ball location calculated for a bearing subjected to external bearing load and contact shape function. And uniaxial fatigue tests are performed to obtain fatigue parameter of AISI 52100 steel. It was found that since stress is usually higher at the inner raceway contact than at the outer raceway contact, fatigue failure occurs on the inner raceway first. When the fatigue life calculated in the stress-based method are compared with