This component forms the inner raceway for a needle roller bearing assembly, designed with a cylindrical bore of 90.0 mm and a width of 63.0 mm. The part has a net mass of 1.116 kg. As a separate inner ring, it is intended for use with a matching outer bearing and needle roller and cage assembly rather than as a complete standalone bearing. The cylindrical bore allows mounting directly on a shaft without additional adapter sleeves, and the separable design permits individual replacement of the inner ring without disturbing the outer bearing components. This construction is suited to applications requiring a dedicated hardened raceway surface where the shaft itself is not hardened or ground to bearing tolerances. Lubrication and sealing are provided externally, as the inner ring itself carries no integrated seal or grease reservoir.