Railway bearings are applied to railways. Wheel-axle bearings of railway locomotives and rolling stock have different structural designs because of different application conditions. Locomotives have different structural designs. The axle-box bearings of locomotives and passenger cars are connected with bogies through axle-box. Railway bearings are applied to railways. Wheel-axle bearings are used for railway locomotives. The axle system of a locomotive is designed with different structures according to different application conditions. The axle box bearings of locomotives and passenger cars are connected with bogies through axle boxes. Railway bearings are applied to railways, axle bearings are used to train axle systems of locomotives and rolling stock because of different application conditions. Structural design adopts different structural design locomotive uses different structural design, locomotive and bus axle box bearings are connected with bogie through axle box.