This inner ring provides the raceway component for needle roller and cage assemblies where a separate inner ring is required to complete the bearing arrangement. It has a bore diameter of 17.0 mm, a width of 20.0 mm, and a net mass of 34.0 g. The cylindrical bore design allows direct mounting on a shaft without additional adapter elements. Since this is a separate inner ring rather than a complete bearing unit, it must be paired with a matching needle roller and cage assembly to form a functional radial bearing. Its dimensions are matched to the corresponding outer bearing components, allowing the shaft-side raceway to be replaced independently if worn, without needing to change the full assembly.