Solid ferrule needle roller bearing has compact structure, small radial size and large load capacity, and is suitable for components with limited radial profile size. Needle roller bearings generally can only bear radial load, not axial load. When there is an axial load, it should be used in combination with other bearings, which do not limit the axial displacement of the shaft or housing.

the limit speed of needle roller bearings is relatively low, needle roller bearings with cages should be selected as far as possible when the host speed is relatively high. Compared with other types of rolling bearings, under the same radial dimension, the needle roller bearing has the largest load capacity, its rigidity is higher, but the friction torque is also larger.

Needle roller bearing

NK, NKS, RNA, RNAO
NKI, NKIS, NA, and NAO
RNA...RSR / 2RSR
NA...RSR / 2RSR