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TBU90 Railway Bearing Double Row Tapered Roller Bearing Train Bearing

Train bearing/railway bearing
Double row taper roller bearing

TBU90 Railway Bearing Double Row Tapered Roller Bearing Train Bearing 

Tapered roller bearing units (TBUs) consist of two inner rings with a tapered roller and polymer cage assembly, a common outer ring, a central spacer, two sealing systems and a grease fill. 

The classic TBU for American freight car bogies is designed with inch size dimensions following the standards of the Association of American Railroads (AAR).


For new freight cars with increased cargo, inch size compact tapered roller bearing units (CTBUs) are used. The sealing system of the CTBU consists of two parts: a (stationary) seal that is anchored in the outer ring and a flinger ring that is fitted directly on the inner ring shoulder. This design offers increased reliability.


We offer solutions for a wide range of wheelset designs for all kinds of railway rolling stock. This includes high-speed trains, diesel and electric locomotives, diesel and electrical multiple units, passenger coaches, freight cars and mass transit vehicles like tram cars. 

More Part Nos

Size Principal dimensionsdDBC
TBU 9090154106115
TBU 100100175             113,5120
TBU 120120195126131
TBU 130 x 210130210126132
TBU 130 x 220130220145150
TBU 130 x 230130230150160
TBU 140140220133140
TBU 150150250             154,5160
TBU 160 x 270160270160150
TBU 160 x 280160280180180
TBU 178 x 265178,62265,137134139