This item will be shipped within One Week Returns Subject to 15% restocking Fee SUCFT201-12m-PBT Thermoplastic Flange 2 Bolt Stainless Steel Insert 12mm Inner Diameter Ball Bearing SUCFT201-12m-PBT Thermoplastic Flange 2 Bolt Ball Bearing, bearing is Stainless Steel Insert, bearing has solid base housing construction, bearing is wide inner ring with set screws, bearing is relubricatable unit with anti-rotation pin, bearing has supplied with water and wash resistant mobilgrease.