This spindle bearing is a single-row angular contact design with a 15° contact angle, bore diameter 100.0 mm, outside diameter 140.0 mm, and width 20.0 mm, weighing 0.79 kg. It is fitted with lip seals on both sides, working without contact, and uses a T-type cage. The B71920-C-2RSD-T-P4S-UL is manufactured to restricted (P4S) tolerances and supplied for adjusted mounting in pairs or sets. The 15° contact angle allows the bearing to carry combined loads with a bias toward axial load transmission, matching the stiffness requirements of precision spindle arrangements. The restricted P4S tolerance class supports accurate running and reduced radial and axial play when mounted in matched sets, while the non-contact lip seals on both sides keep out contamination without adding frictional torque. The UL designation indicates a defined preload condition suited to universally matchable pair or set configurations, allowing the bearing to be combined with an identical partner unit in the required arrangement.