This item will be shipped within One Week Returns Subject to 15% restocking Fee ZUCP204-20m-PBT Thermoplastic Pillow Block Ball Bearing Zinc Chromate Plated 20mm Inner Diameter ZUCP204-20m-PBT Thermoplastic Pillow Block Zinc Chromate Plated Ball Bearing, 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.