Bearing failure analysis method

The invention relates to a bearing failure analysis method. The method comprises the following steps of step1, checking and analyzing a failure bearing or a sample bearing after an experiment; step2,detecting bearing precision; step3, checking and analyzing a state of grease in the bearing; step4, checking and analyzing surface states of inner and outer ring channels, a steel ball and a retainerof the failure bearing or the sample bearing after the experiment; step5, testing and analyzing circular degrees of the inner and outer ring channels of the failure bearing or the sample bearing afterthe experiment; step6, analyzing a material; and step7, gathering, arranging and making a conclusion. In the invention, according to a bearing reverse analysis process, through the process, analysisis performed, an analysis main point is grasped and a root cause of bearing failure is found. 本发明涉及种轴承失效分析方法，包括以下步骤：步骤1、查看和分析失效轴承或实验后的样品轴承；步骤2、对轴承精度进行检测；步骤3、查看和分析轴承内部油脂的状况；步骤4、查看和分析失效轴承或实验后的样品轴承内外圈沟道、钢球、保持架的表面状况；步骤5、测试和分析失效轴承或实验