This needle roller bearing carries a full complement of needle rollers guided without an inner ring, giving a radial section suited to compact housing designs. Outside diameter is 48.0 mm, net mass 118.025 g, limiting speed 12000 1/min and reference speed 7000 1/min, with a standard cage retaining the rollers. The standard cage keeps the rolling elements evenly spaced and supports smooth operation up to the stated reference speed, while the limiting speed value indicates the short-term speed capability of the bearing. As no inner ring is fitted, the bearing is mounted directly onto a hardened and ground shaft, which sets the actual bore fit and running accuracy of the assembly. This design provides a high radial load capacity within a small radial envelope.