This insert ball bearing carries a spherical outer ring and is fixed on the shaft by grub screws, allowing quick radial mounting without additional locking elements. The bore diameter is 16.0 mm, outside diameter 40.0 mm, width 27.4 mm, and net mass 0.094 kg. Sealing on both sides is designated KRR. The spherical outer ring surface supports self-alignment within the housing, compensating for minor shaft misalignment during operation. Grub screw fixation provides a straightforward and secure connection to the shaft, while the R seals on both sides protect the internal raceway and balls from dust and contamination, keeping the grease fill in place over the operating life of the bearing.