This bearing carries radial loads through a single row of balls running in deep grooves, with a bore of 280.0 mm, outside diameter of 380.0 mm and width of 46.0 mm. Net mass is 15.2 kg. The cage is a solid brass cage (MA), guiding the balls with low friction and stable geometry at the limiting speed of 2850.0 1/min and reference speed of 1990.0 1/min. Radial internal clearance is CN (Group N), and bore type is Z. The solid brass cage suits applications where sustained rotation at the stated speed range is required, since it maintains ball spacing without deformation under thermal load. CN clearance keeps the bearing within standard operating tolerances, supporting predictable running accuracy without preload. As an open design, mounting must include separate sealing and a defined lubrication scheme, either grease or oil, matched to the reference speed given.