Deep Groove Metric Ball Bearing -Rubber Sealed 80mm x 170mm x 39mm Deep 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 80mm • Outside Diameter 170mm • Width 39mm • Rubber Sealed • Chrome Steel • Weight 3.78kg