This inner ring provides the inner raceway component for a needle roller bearing assembly, designed as a separate cylindrical part matched to a corresponding outer ring and needle roller and cage assembly. Bore diameter is 40.0 mm, width is 40.0 mm, and net mass is 0.169 kg. The XL designation indicates a reinforced cross-section variant within the IR series. As a component part rather than a complete bearing, it must be combined with the appropriate outer ring and needle roller and cage assembly to form a functional bearing arrangement. Its cylindrical bore and matched width allow direct mounting on a shaft with the fit selected according to load and rotation requirements, and its separate design permits individual replacement of the raceway without exchanging the full bearing set.