This insert ball bearing carries radial loads through a spherical outer ring, which is seated in a housing and locked onto the shaft by grub screws. Bore diameter is 55.0 mm, outside diameter 100.0 mm, width 55.6 mm, and net mass 1.03 kg. The design designation GYE55-XL-KRR-B indicates R seals fitted on both sides of the bearing. The spherical outer surface allows the bearing to self-align within its housing, compensating for minor shaft misalignment during operation. Grub screw fixation provides a simple, direct method of locking the inner ring to the shaft without additional fastening elements. The KRR sealing arrangement, with seals on both faces, protects the bearing interior from dust and moisture ingress while retaining internal grease lubrication, making the unit suitable for shaft-mounted applications where periodic relubrication access is limited.