This item will be shipped within One Week Returns Subject to 15% restocking Fee ZUCT204-20m-PBT Thermoplastic Take Up Bearing Zinc Chromate Plated Insert 20mm Inner Diameter Ball Bearing ZUCT204-20m-PBT Thermoplastic Take Up Ball Bearing, bearing is Zinc Chromate Plated 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.