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안태길(T.K. Ahn),이상훈(S.H. Lee),박지헌(J.H. Park),정효진(H.J. Jung),김진우(J.W. Kim),이현복(H.B. Yi) 한국도시철도학회 2016 한국도시철도학회논문집 Vol.4 No.4
An axle bearing is one of the most important components to guarantee the service life of a rail vehicle. In order to ensure the stable and reliable bearing life, it is essential to estimate the fatigue life of an axle bearing under the loading conditions. The fatigue life of a bearing is affected by many parameters such as material properties, heat treatment, lubrication conditions, operating temperature, loading conditions, bearing geometry, the internal clearance of bearing, and so on. Because these factors are so complicatedly related with each other, it is very important to investigate the effects of these factors on the axle bearing life. This paper presents the process of estimating the fatigue life of a railroad roller bearing, taking into account geometric parameters of the bearing in the life calculation. On the basis of the process, the effects of bearing geometric parameters on the fatigue life are analyzed using Taguchi method.