This spindle bearing carries a 25° contact angle and is supplied adjusted, in pairs or sets, with restricted tolerances to class P4S. Bore diameter is 55.0 mm, outside diameter 90.0 mm, width 18.0 mm, and net mass 371.18 g. The cage is designated T, and the bearing is supplied without sealing. The restricted tolerances and P4S accuracy class make this bearing suitable for arrangements requiring precise running accuracy and controlled preload when mounted in pairs or sets, as indicated by the UL designation. The 25° contact angle allows combined radial and axial load support, while the absence of sealing means external lubrication and protection must be provided by the housing design. Being supplied as matched sets, the bearings should be mounted together as delivered to maintain the intended preload and accuracy.