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简介:摘要:滚动轴承是机械行业中通用的旋转基础件之一,是汽车变速器的重要承载单元,其运转性能的好坏直接影响整车的性能。滚动轴承工作条件非常恶劣,高转速、大负荷和润滑不良等加剧了轴承的破坏。汽车变速器的噪声及过早破坏多是由于滚动轴承的失效导致的。滚动轴承的主要失效形式疲劳点蚀、剥落、压溃、胶合等都与轴承接触有关。因此,研究滚珠与滚道的真实接触情况对于研究轴承的失效具有重要意义。