Deep Groove Metric Ball Bearing - Metal Shielded 45mm x 75mm x 16mm 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 45mm • Outside Diameter 75mm • Width 16mm • Metal Shielded • Chrome Steel • Weight 260 gms