This self-aligning ball bearing accommodates angular misalignment between shaft and housing thanks to its two rows of balls running on a common spherical raceway in the outer ring. Bore diameter is 95.0 mm, outside diameter 170.0 mm, width 43.0 mm, with a tapered bore (taper 1:12, designation K) allowing mounting on an adapter sleeve or tapered shaft seat for a controlled interference fit. The cage is solid brass (code M). Radial internal clearance is C3, which is greater than normal and compensates for interference-fit expansion during mounting as well as thermal expansion in operation. Limiting speed is 6100 1/min, reference speed 5000 1/min. The tapered bore design simplifies mounting and allows clearance adjustment during assembly by controlling the axial drive-up distance on the taper. The self-aligning design tolerates shaft deflection and housing misalignment without inducing additional internal stress. The brass cage supports stable ball guidance at the stated speed values. No seals are integrated, so external sealing and separate lubrication arrangements must be provided by the user. Dimensionally and constructionally equivalent to SKF 2219K/C3 and SKF 2219KM/P63.