This self-aligning ball bearing carries two rows of balls running on a common spherical raceway in the outer ring, allowing the inner ring, balls and cage to swivel relative to the outer ring axis. Bore diameter is 100.0 mm, outside diameter 180.0 mm, width 46.0 mm, and net mass is 4.98 kg. The cage is a solid brass cage (designation M), radial internal clearance is C3 (Group 3), and the limiting speed is 5700.0 1/min, with a reference speed of 4900.0 1/min. The spherical outer raceway compensates for shaft misalignment and deflection without introducing added load on the balls, which makes this bearing suitable where shaft bending or housing misalignment must be tolerated. The C3 clearance offsets the temperature rise and fit-related preload typical of solid inner rings, while the solid brass cage keeps the balls guided reliably at the given speed range. No lubrication or sealing arrangement is specified, so grease or oil supply must be provided externally according to the operating conditions.