Axlebox bearings are made up of a railway housing and rolling bearing, and are safety-relevant components in rail vehicles.
Axlebox bearings for locomotives are characterized by their particularly high load ratings. For safety reasons, the bearings used in high-speed transportation applications are manufactured from steel that is subject to specific requirements with regard to the purity of the material. These bearings are equipped with non-contact seals to allow them to be operated at low temperatures, and special high-speed grease is also used.