Carries radial loads within a compact cross-section, using needle rollers guided by a standard cage running directly against the shaft, since the bearing has no inner ring. It has an outside diameter of 115.0 mm and a net mass of 464.3 g, and belongs to the light series of the NK design. The limiting speed reaches 4850.0 1/min, with a reference speed of 3300.0 1/min. The absence of an inner ring keeps radial space to a minimum, so the mounting shaft must be hardened and ground to serve as the running surface for the needle rollers. The standard cage keeps the rollers evenly spaced and positioned, supporting stable operation up to the stated speed limits. This needle roller bearing suits applications where radial load capacity must be combined with a small radial envelope and a rigid shaft-mounted arrangement.