This spherical roller bearing carries two symmetric rows of rollers with a symmetric two-outer-rib design and a rib washer (BEA), fitted with a tapered bore (K) for mounting on an adapter or withdrawal sleeve. Bore diameter is 440.0 mm, outside diameter 720.0 mm, width 226.0 mm, and net mass 349.5 kg. The bearing runs with CN (Group N) radial internal clearance, is guided by an MB1 machined brass cage, and reaches a limiting speed of 820.0 1/min with a reference speed of 430.0 1/min. The tapered bore allows mounting with controlled clearance reduction on a stepped or straight shaft using an adapter sleeve, which is useful where shaft tolerances or fitting practices call for that method rather than a cylindrical bore. The symmetric two-rib design with rib washer supports axial loads in both directions while the self-aligning roller geometry accommodates shaft deflection and misalignment. CN clearance corresponds to the standard clearance range, suitable where no special fit-up compensation is required, and the standard relubrication feature allows grease replenishment during operation without dismounting the bearing.