Deep Groove Metric Ball Bearing - Metal Shielded 8mm x 24mm x 8mm 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 8mm • Outside Diameter 24mm • Width 8mm • Metal Shielded • Chrome Steel • Weight 30 gms