This needle roller bearing carries radial loads in a compact envelope, without an inner ring, so it is mounted directly on a hardened and ground shaft. Outside diameter is 30.0 mm, width 13.0 mm, net mass 23.79 g, and the design is single row with a standard cage. Limiting speed reaches 20000 rpm, with a reference speed of 10900 rpm, according to DIN 617/ISO 1206. The bearing has no sealing, so lubrication and contamination protection must be provided by the housing design, and grease or oil supply has to be arranged externally. The absence of an inner ring keeps radial section low and allows use where shaft diameter tolerance is controlled directly by the raceway surface of the shaft. The standard cage guides the needle rollers at the stated speed ratings, making the bearing suitable for applications requiring high radial load capacity within a limited radial space.