This insert ball bearing carries a spherical outer ring that seats in a mating housing, allowing the bearing to self-align while shaft location is secured by grub screws set into the inner ring. Bore diameter is 49.213 mm, outside diameter 90.0 mm, width 51.6 mm, and net mass 0.82 kg. Sealing on both sides is of the 2RSR type. The spherical outer ring accommodates slight misalignment between shaft and housing bore, easing installation where perfect alignment cannot be guaranteed. Grub screw fixation gives a positive lock on the shaft without requiring a separate locking collar. The 2RSR seals on both faces keep grease inside the bearing and restrict entry of dust and moisture from outside, so the bearing suits applications where the housing itself does not provide additional sealing.