This spherical roller bearing accommodates radial loads combined with angular misalignment between shaft and housing, using two symmetric rows of rollers riding on a spherical outer ring raceway with two outer ribs. Bore diameter is 140.0 mm, outside diameter 250.0 mm, width 68.0 mm, and net mass is 13.797 kg. Limiting speed is rated at 3150.0 1/min, with a reference speed of 2250.0 1/min. Design variant E1A provides an optimized internal geometry for load distribution. The bearing has a tapered bore (bore type K), allowing mounting on tapered seats or with an adapter/withdrawal sleeve, which simplifies achieving correct internal clearance during fitting. Radial internal clearance is C3, exceeding standard clearance to compensate for interference fit and thermal expansion during operation. The machined brass cage (M) offers stable roller guidance at the specified speed range, and the standard relubrication feature permits replenishment of grease without dismounting the bearing.