The bolt shaft of the bolted roller bearing has been quenched in the rolling track area. The thick-walled outer ring of the roller has an arched outer surface to prevent force concentration. The outer ring features two solid flanges, guided axially by the rollers. The bolt shaft head and the pressed side flange provide axial support to the outer ring through the rollers.

The outer ring of the bolted roller bearing (PWKR series) features double raceways, and the two rows of rollers are separated, forming a full complement of double-row cylindrical roller structure.