THK Roller Followers NAST Type

The roller follower is a compact bearing with a highly rigid shaft and built-in needle bearing. Most suitable for use as guide rollers for cam mechanisms and linear motion.

NAST type: This separate bearing is composed of a thick-walled outer ring, an inner ring and a precision cage-type needle roller. The structure is simple, so high accuracy can be obtained at low cost.

RNAST type: This bearing is composed of a thick-walled outer ring and precision cage-type needle rollers.

NART type: The side plates of this non-separable bearing are fixed to the inner ring. Its outer ring has been spherically processed to help reduce eccentric loads.