The RCSM insert bearing is made from 52100 series bearing steel with a rubber cushion on the outside diameter. The RCSM rubber cushion insert has all of the features of the CSA insert with the addition of a static conductive rubber cushion.

The SER insert has a cylindrical OD and is equipped with a snap ring in the outside diameter. The SER insert bearing is used in applications where the housing is machined to accept snap rings or the snap ring is used for the retention of the bearing. It features a Neoprene Contact Seal designed to keep lubricant in while keeping contaminants out.