Deep Groove Metric Ball Bearing -Rubber Sealed 15mm x 42mm x 13mm 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 15mm • Outside Diameter 42mm • Width 13mm • Rubber Sealed • Chrome Steel • Weight 100 gms