This inner ring is a cylindrical raceway component designed for use with a matching needle roller bearing assembly, providing the inner rolling surface where no built-in inner ring is otherwise present. It has a bore diameter of 42.0 mm, an outer diameter of 47.0 mm, a width of 20.0 mm, and a net mass of 52.9 g. The XL suffix indicates a reinforced design compared to the standard version, allowing it to carry higher radial loads within the same envelope dimensions. As a separate ring, it must be paired with a needle roller and cage assembly or full complement bearing sharing the same dimensional series, forming a complete rolling arrangement on the shaft seat. The cylindrical bore allows a simple sliding fit onto the shaft, and no integrated sealing or lubrication feature is included, so sealing and lubrication must be provided by the surrounding housing or an separate cage assembly. Precision of the raceway matches standard tolerance requirements for needle roller applications, ensuring correct running clearance when mated with the corresponding roller set.