This needle roller cage assembly locates a single row of needle rollers within a JN-type cage, giving a component width of 8.0 mm and a net mass of 2.7 g. The design permits a limiting speed of 26500 1/min and a reference speed of 20300 1/min, making it suitable for compact radial support where a separate cage-and-roller unit is required. Marked K12X16X8-A/0-7, this INA needle roller cage assembly is intended for use against a hardened and ground shaft and housing bore that serve as the running surfaces, since no integral inner or outer ring is included. The cage guides the needle rollers to maintain even spacing and reduce friction, and the assembly requires the mating surfaces to be lubricated and dimensioned to the specified bore and shaft tolerances for correct operation.