This part serves as a separate inner ring for a needle roller bearing arrangement, providing a hardened raceway surface on the shaft seat. It is manufactured with a cylindrical bore of 17.0 mm and a width of 30.5 mm, with a net mass of 20.3 g. As a stand-alone ring rather than a complete assembly, it is intended for use together with a matching outer race and needle roller and cage assembly, allowing the radial internal clearance of the whole arrangement to be set independently. Since the inner ring is supplied separately, it allows for flexible shaft-side mounting and replacement without affecting the outer bearing components. No seals or integrated lubrication are included, so grease or oil supply and sealing arrangement must be provided by the surrounding housing design. The cylindrical bore form (XL execution) allows a straightforward press fit onto the shaft, and the raceway surface finish supports smooth operation of the needle roller complement running directly on it.