This component provides the inner raceway for a needle roller bearing assembly, designed as a separate cylindrical inner ring to be combined with a matching outer race and needle roller and cage assembly. The bore diameter is 25.0 mm, width is 20.0 mm, and net mass is 32.8 g. The cylindrical bore allows direct mounting on a shaft without additional adapter sleeves. Using a separate inner ring of this type allows the raceway to be replaced independently of the housing bore components, which is useful when the shaft surface itself is not suited to run directly as a raceway. As IR25X30X20-XL is supplied without seals or integrated lubrication, sealing and grease or oil supply must be arranged externally according to the operating conditions of the full bearing assembly.