This inner ring is designed to be used together with a matching needle roller bearing without an integral inner race, providing a hardened cylindrical raceway surface for the rolling elements. It has a bore diameter of 80.0 mm, a width of 30.0 mm, and a net mass of 0.304 kg. The cylindrical form allows direct mounting on the shaft, replacing a hardened and ground shaft seat. Using a separate inner ring of this type allows the raceway to be exchanged if worn, without machining the shaft itself, and simplifies mounting and dismounting of the bearing arrangement. Since it is a bare ring without seals or built-in lubrication, the lubrication method and operating clearance are determined by the needle roller bearing it is paired with, and correct fit selection on the shaft is required to maintain the intended running accuracy.