Page 9 of catalogue Bearing Technology for Rail Vehicles of Schaeffler Technologies GmbH & Co. KG

Customer-specific Components, spare parts and housing adapters are available on request. Axlebox Bearing Housing and Adapter As the connector between the bogie frame and the wheelset, the housing must safely transfer loads. The design depends on how the forces are introduced into the housing. The correct shape ensures optimum distribution of pressure in the rolling bearing so that the specific load is reduced and stress peaks in the loadbearing contact surfaces are avoided. The design of the housing is individually adapted to the adjacent construction. Tapered Roller bearings, tapered roller Bearing units and TAROL Tapered roller bearings are used in the same way as Cylindrical roller bearings in the axlebox bearing supports of all types of rail vehicles: • two single-row tapered roller bearings as a bearing set • one double-row tapered roller bearing as a ready-to-mount unit Ready-to-mount units have an integrated seal, are greased and the clearance is adjusted during manufacture. TAROL units (Tapered Roller Bearing Unit) are also double-row tapered roller bearing units but are available in either metric or imperial dimensions and are supplied with all the necessary retaining elements and fittings. They are mounted on the axle journal using a Hydraulic press. The optimum design is ensured by means of complex tests that are supported by FEM calculations. The finite element method describes not only complex geometries but also the complex progression of the force flow in the housing as realistically as possible. Axlebox bearing housings and adapters can be supplied made from spheroidal graphite cast iron, cast steel or cast light metal.