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1 问题的提出2 0 0 2年 7月 2 9日 ,青岛车辆段货修车间轴承组在检修轴号为 786 5 2的 RD2 型轮对时 ,发现该轮对右端轴承转动时有异音 ,进行逆时针转动时轴承出现卡滞现象 ,退检后发现该轴承内排滚子大端保持架窗梁处严重裂损 ,窗梁已脱离保持架本体。该轴承于 2 0 0 0年 11
1 Question raised On July 29, 2002, Qingdao Rolling Stock Repair shop bearing group in the maintenance of shaft No. 786 5 2 RD2-type wheel set and found that the right rotation of the wheel bearing abnormal sound, Bearing anti-clockwise rotation occurs when the phenomenon of arrest, after the inspection found that the roller cage rear end of the big cage girder serious crack, the window beam has been separated from the cage body. The bearing in 2000 11