Provides the inner raceway component for a needle roller bearing arrangement built with a separate inner ring, allowing the assembly to run directly on a shaft where a hardened and ground bearing seat is required. IR50X60X28-XL has a bore diameter of 50.0 mm, width of 28.0 mm, and a net mass of 184.0 g, with a cylindrical bore form. Since the ring is supplied as a separate part, it must be mounted with the corresponding needle roller and cage assembly and outer ring or housing bore to form a complete bearing. The cylindrical bore allows a straightforward fit onto a plain shaft, and the component should be paired with a lubrication method and fit tolerance matched to the load and speed conditions of the surrounding assembly.