Needle roller bearings are used when the load carrying capacity or accuracy of drawn cup needle roller bearings with open ends is no longer sufficient and the high load capacity of cylindrical roller bearings is not yet required.
Bearings without an inner ring are highly suitable for bearing arrangements with particularly compact radial dimensions if the shaft raceway can be hardened and ground.
Bearings with an inner ring are used if the shaft cannot be configured as a rolling bearing raceway.
