R8 Full Ceramic Bearing 1/2" x 1-1/8" x 1/4"R8 Full Ceramic Ball Bearing Zirconia (ZrO), Open Design 1 2" x 1 1 8" x 1 4" Non Magnetic, Corrosion Resistant, PTFE Cage The R8 full ceramic bearing is made from Zirconia (ZrO), offering excellent performance in corrosive, high temperature, and non conductive environments. It features a PTFE cage and an open design, making it ideal for dry or low friction setups such as lab tools, fluid systems, and precision machinery. Size: 1 2" ID x 1 1 8" OD x 1