This needle roller bearing carries radial loads within a compact single-row design, bore 50.0 mm, outside diameter 80.0 mm, and width 28.0 mm, weighing 0.526 kg. It belongs to the heavy series, offering a solid load-bearing cross-section for its dimensional envelope. Limiting speed reaches 7400 1/min, with a reference speed of 4250 1/min, and the bearing is fitted with a standard cage. Radial internal clearance falls in the CN (Group N) range, suitable for standard mounting conditions without special preload requirements. The bearing has no integrated sealing, so external sealing arrangements and separate lubrication provisions must be planned by the user. As a solid needle roller bearing without an inner ring, it requires a hardened and ground shaft surface to serve as the raceway.