Timken Deep Groove Metric Ball Bearing 6208-2RSC3Deep Groove Metric Ball Bearing Rubber Sealed 40mm x 80mm x 18mmDeep groove ball bearings are particularly versatile. They are suitable for high and very high speeds, accommodate radial and axial loads in both directions and require little maintenance. Deep groove ball bearings are the most widely used bearing. Inside Diameter 40mm Outside Diameter 80mm Width 18mm Rubber Sealed Chrome Steel Weight 420gms