The needle roller and cage assembly is an independent bearing element, where each needle roller is accurately guided and held by the cage. It achieves a bearing design with high load capacity and high rigidity in the smallest structural space. The wide spacing between the two guide surfaces of the cage ensures precise guidance of the needle roller and cage components.

The needle roller and cage components are suitable for use as raceways for shafts and seat holes. The highest rotational accuracy can be achieved in shafts and seat hole raceways with high dimensional and geometric accuracy.

The working clearance of the shaft depends on the tolerance of the inner and outer raceways, the difference in needle assembly, and the working temperature.