J4 ›› 201016, Vol. 21 ›› Issue (16): 1969-1973.

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  1. 武汉理工大学,武汉,430070
  • 出版日期:2010-08-25 发布日期:2010-08-25

Research on Rolling Bearing’s Heathcote’s Stick-slip Model Based on Materials Compatibility

Hu Chao;Liu Zuomin

  1. Wuhan University of Technology,Wuhan,430070
  • Online:2010-08-25 Published:2010-08-25





A new Heathcote’s stick-slip model of bearing balls was developed based on both Hertz theory and materials Young’s modulus and used to calculate the stick-slip values at contact region for different bearing materials and to analyze their stick-slip characteristics by means of the model and finite element method. The research results show that the materials compatibility has greatly affect on stick-slip characteristics of roll bearings.Furthermore, the effect of load on the stick-slip of the contact region are also very great. It is found that for the same bearings, when the load increases 10%,the major and minor axis of the contact region will increase 3% and the value of the stick-slip maximum point of contact deformation increases 6.3% due to the instantaneous axis of rotation will move up.The effects of load on stick-slip of the rolling ball bearings were investigated by using loading rate.

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