The RNAST Series consists of Separable Roller Followers designed as heavy-duty track rollers with high-performance characteristics. These bearings incorporate needle rollers within a thick-walled outer ring, specifically engineered for the rotation of the outer ring.
The RNAF Series is the single-row type, and the RNAFW Series is the double-row type, both maintaining the same low sectional height. These bearings are designed to be used without an inner ring, utilizing the hardened and ground shaft as the raceway for a compact footprint. The radial internal clearance can be freely chosen by combining the outer ring assembly with a properly finished shaft.
