Rail transport is a rapidly growing industry. Bearings are also indispensable in railway production and application industries. Bearings used in the railway industry must have high load carrying capacity and safety performance.

Railway bearing application Railway, axle bearing railway locomotive, rolling stock axle system adopts different structural designs due to different application conditions.

Both locomotives and passenger cars have axle boxes through which the bearings are connected to the bogie. The railway wagon has no axle box, and the approach road is connected by a saddle. The bearing bears the impact load generated between the wheel set and the bogie, and also bears the axial load generated by the turning of the vehicle.

The hub bearing structure includes cylindrical roller bearings, cylindrical roller bearing units, tapered roller bearings, and tapered roller bearing units.

Regardless of the train type high-speed, low-speed, intercity, tram, metro and freight cars, we have a solution for each of your railway applications bogies, axles, transmission and traction.

Gearbox bearing：The main functions of rolling bearings in gearboxes are to stabilize the shaft and support the transmission of force. This means extreme loads in complex environments must be withstood. Gearbox bearing types mainly include tapered roller bearings, four-point joint contact bearings, cylindrical roller bearings, deep groove ball bearings, spherical roller bearings, and angular joint contact ball bearings. Bearing arrangements vary; mainly based on gearbox design and operating conditions.

Axle box bearing：In freight electric locomotives, the axlebox uses two rolling bearings to support the tractive force of the transverse motor. The hoop bearing directly hangs the traction motor and hangs on the wheel set shaft. To achieve a long service life of the hugging bearings (normally, the service life should exceed 2 million kilometers), the rolling bearings used here should have a very high load carrying capacity.

Traction motor bearings：Traction motors mainly use deep groove ball bearings or cylindrical roller bearings. Classical traction motor bearings consist of fixed and floating bearing arrangements.Hybrid bearings consist of bearing rings made of rolling bearing steel and rolling elements made of ceramics and are divided into deep groove ball bearings and cylindrical roller bearing design types. Especially for AC motors with high frequency control systems, hybrid ceramic bearings are the safest way to prevent damaging currents from flowing inside the bearing.

Wheel Bearing：Wheelset bearings are the defined interface between the wheelset and the bogie and are safety-related components. The wheel set type of railway vehicles is determined by the axle design, and the bearings are generally rolling type, such as tapered roller bearings, to meet the requirements of extreme working conditions such as high speed and heavy load.