Abstract:In order to analyze the relationship between lubrication factors and failure mechanism of rolling bearing,the failure modes of rolling bearing were counted,and the interaction theory mechanism between the all kinds of failure modes and lubrication factors was discussed.The failure mechanism of rolling bearings was analyzed by experimental methods from the two aspects of the rolling bearing itself and the greases,and the effects of lubrication factors on the rolling bearing life were discussed.The results show that the bearing surface wear is the main form of rolling bearing failure.The main reason that rolling bearing does not achieve the rating life is the lubricating property of grease can not come up to the expected standard.The rolling bearing failure is always accompanied by the decrease of lubricating property,and the change of film pressure distribution and film thickness of greases,such variety of greases could intensify the rolling bearing failure,and shorten the rolling bearing life.