This needle roller cage assembly transmits radial load through a single row of needle rollers guided in a JN-type cage, without an integral inner or outer ring. Bore is 18 mm, outside diameter 22 mm, width 10.0 mm, and net mass is 5.23 g. The limiting speed is rated at 22400 1/min, with a reference speed of 13600 1/min. Because it consists only of the roller and cage set, this assembly requires a hardened and ground shaft and housing bore to serve as the running surfaces, keeping radial section height to a minimum. The cage design (JN) provides guidance and even spacing of the needle rollers, allowing smooth rotation at the stated speed values when adequately lubricated. As a component without seals, lubrication and contamination protection must be arranged externally by the surrounding assembly.