Abstract: In order to ensure the safe operation of the railway locomotive and reduce the potential safety hazards of locomotive bogie axle-box bearings, some long-term and inertiaquality problems of bogie axle-box bearings are listedatfirst, based on the analysis of failureforms of axle-box bearings. Secondly, the contentsaboutthe design, manufacturing verification, installation, andthe operation maintenance of locomotive bogie axle-box bearings were discussed. Then, the various factors and possible reasons caused by the quality problems of axle-box bearings that endangered the safety of locomotives were analyzed. Finally, the rationalization suggestions for the application reliability of the locomotive bogie axle-box bearings were proposed. The results show that using this method comprehensively is beneficial to reduce the failure rate greatly of the axle-box bearings for railway locomotive and improve the safety and reliability of railway locomotive operation.

Key words: locomotive, axle box bearing, life calculation, manufacturing and installation, operation and maintenance