This inner ring provides the cylindrical bore-side raceway for a needle roller bearing assembly, replacing a worn or missing inner ring without requiring replacement of the full bearing set. It has a bore diameter of 5.0 mm and a width of 16.0 mm, with a net mass of 3.7 g, matching the extended-width XL design for use with correspondingly sized needle roller and cage assemblies or full complement needle roller bearings. Being a separate component, it allows the shaft-side raceway to be replaced independently, which is useful when the raceway surface is worn while the outer bearing components remain serviceable. The cylindrical bore is intended for a plain shaft fit, and correct operation depends on selecting a needle roller complement matched to this bore and width combination.