JOJI not only provides inner rings for needle roller bearings, but also provides needle rollers as separate needle roller bearing assemblies.
In applications where the shaft cannot be hardened and ground, the inner ring is often combined with a needle roller and cage assembly or used with a drawn cup needle roller bearing.
Needle rollers can be used in full complement bearing arrangements for low-speed or oscillatory applications. If the shaft and housing bore serve as raceways, this compact bearing arrangement can provide higher load carrying capacity and be more economical than a bearing with a cage (raceways on the shaft and in the housing).