This self-aligning ball bearing accommodates shaft misalignment through its two-row spherical raceway design. It features a tapered bore with a taper ratio of 1:12 (bore type K), a solid brass cage (M), and radial internal clearance C3 (Group 3). Bore diameter is 100.0 mm, outside diameter 180.0 mm, width 46.0 mm, and net mass 5.11 kg. Limiting speed is rated at 5700 1/min, with a reference speed of 4900 1/min. The tapered bore allows mounting directly on a tapered shaft seat or with an adapter sleeve, simplifying installation and enabling controlled clearance adjustment during fitting. The C3 internal clearance compensates for thermal expansion during operation, while the solid brass cage provides stable ball guidance at the rated speeds. The self-aligning construction permits the bearing to tolerate shaft deflection or housing misalignment without inducing additional internal stress, making it suitable for applications where precise shaft alignment cannot be guaranteed.