This self-aligning ball bearing compensates for shaft misalignment through its spherical outer raceway design. It has a bore diameter of 85.0 mm, outside diameter of 150.0 mm, and width of 28.0 mm, with a net mass of 1.989 kg. The tapered bore (K, taper 1:12) allows mounting directly on a tapered shaft seat or via an adapter sleeve, giving a defined interference fit without the need for a separate locking device. Radial internal clearance is C3, and the cage is a glass-fibre reinforced plastic cage (TVH). Limiting speed is 4900 1/min, reference speed 4950 1/min. The tapered bore combined with C3 clearance suits applications where a controlled interference fit is required and where minor shaft deflection or housing misalignment must be accommodated without loading the balls unevenly. The plastic TVH cage reduces friction and mass compared with a solid metal cage, supporting stable operation at the stated speed ratings. The bearing is supplied open, without integrated seals, so lubrication and sealing must be provided externally according to the operating environment.