Description 6308/C3, SKF, Deep Groove Ball Bearing, Open Manufacturer: SKF Seals/Shields: Open Clearance: C3 Quality: Premium Limiting Speed: 11,000 Dimensions: 40x90x23 (mm) Inside Diameter: 40mm Outside Diameter: 90mm Width: 23mm Alternative Product Codes: 6308/C3 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. Because deep groove ball bearings are the most widely used bearing type, they are available from SKF in many designs, variants and sizes.