THK NAST / RNAST Series Separable Type Roller Follower

The THK NAST Series is a separable type roller follower. It has a thick-wall outer ring, an inner ring, and needle rollers held in place by a precision cage. Because it’s separable, assembly and replacement are much easier compared to non-separable roller followers. This range comes in three model options.

Model NAST is the standard separable type. It has an inner diameter from 6mm to 50mm and a basic dynamic load rating from 4.12 kN to 38.7 kN.

Model NAST-ZZ shares the same size range and load rating as the standard NAST, but adds side plates for extra protection.

Model RNAST is a separable type without an inner ring. It has an inscribed bore diameter from 7mm to 60mm and a basic dynamic load rating from 2.74 kN to 38.7 kN.

With three models to choose from, you can pick the configuration that best fits your mounting setup and load needs.