This needle roller cage assembly consists of needle rollers guided in a JN cage, forming a single-row unit with a width of 17.0 mm and a net mass of 9.5 g. The limiting speed is rated at 23600 1/min, with a reference speed of 15200 1/min, giving the assembly its speed capability under standard operating conditions. The cage design (JN) keeps the needle rollers evenly spaced and guided, reducing roller skew and enabling smooth rotation at the rated speeds. As a cage assembly without integrated inner or outer ring, it requires a hardened shaft and housing bore to serve as running surfaces, and it must be supplied with lubricant by the surrounding construction, either grease or oil, according to the operating speed and load conditions.