This spherical roller bearing accommodates radial loads together with angular misalignment between shaft and housing, transmitting them through two rows of barrel-shaped rollers running on a spherical outer ring raceway. The 23180-BEA-XL-K-MB1-T52BW-C4 has a bore diameter of 400.0 mm, an outside diameter of 650.0 mm, and a width of 200.0 mm, with a net mass of 248.5 kg. The tapered bore (K) allows mounting on an adapter or withdrawal sleeve, and the machined brass cage (MB1) guides the rollers under the symmetric two-rib outer design (BEA) with rib washer. Limiting speed is 950.0 1/min, reference speed 495.0 1/min. Radial internal clearance C4 exceeds the standard clearance range, compensating for interference fit on the tapered seat and for thermal expansion during operation. This construction tolerates shaft deflection and housing misalignment without loss of running accuracy, making it suitable for arrangements where precise shaft alignment cannot be guaranteed. The tapered bore simplifies mounting and dismounting on the sleeve, and the design supports standard relubrication practice.