This self-aligning ball bearing accommodates angular misalignment between shaft and housing through its spherical outer ring raceway. It has a bore diameter of 25.0 mm, outside diameter of 52.0 mm, and width of 15.0 mm, with a net mass of 0.131 kg. The tapered bore (K, taper 1:12) allows mounting on tapered shaft seats or with an adapter sleeve, giving a defined interference fit. Limiting speed is rated at 15500 1/min, reference speed at 13400 1/min. The cage is a glass-fibre reinforced plastic cage (TVH), and radial internal clearance is C3 (Group 3), providing greater clearance than standard for compensating thermal expansion and shaft deflection. The C3 clearance combined with the self-aligning design suits applications where shaft misalignment or bending under load is expected, without inducing excessive internal stress on the balls and raceways. The tapered bore simplifies precise axial positioning during mounting and allows clearance adjustment through controlled drive-up onto the shaft or sleeve. The plastic cage reduces friction and mass compared to metal cages, supporting smooth operation at the stated speed ratings. No sealing or shielding is present on this variant, so lubrication and contamination protection must be provided externally.