This is a separate cylindrical inner ring designed for use with needle roller bearings that require a locating ring on the shaft. It has a bore diameter of 60.0 mm and a width of 35.0 mm, with a net mass of 0.214 kg. The cylindrical bore allows direct mounting on the shaft as the raceway component for the needle rollers. Being a separable ring, it permits mounting and dismounting independent of the outer bearing components, which simplifies assembly on the shaft. As a raceway element, its surface finish and dimensional accuracy must match the mating needle roller and outer ring assembly to maintain correct radial internal clearance in the complete bearing arrangement.