This FAG 6308N Deep Groove Ball Bearing 40mm x 90mm x 23mm is in unused condition and is guaranteed to be fully functional. Please feel free to contact us with any questions. Main Dimensions Performance Data Bore diameter d 40 mm Width B 23 mm Basic static load rating, radial C0r 25,000 Limiting speed nG 10,800 Outside diameter D 90 mm Basic dynamic load rating, radial Cr 45,500 Fatigue load limit, radial Cur 1,690 Reference speed n?r 9,000 Mounting dimensions Minimum diameter shaft shoulder da min 49 mm Maximum fillet radius ra max 1.50 mm Maximum diameter of housing shoulder Da max 81 mm Dimensions Minimum chamfer dimension rmin 1.50 mm Shoulder diameter inner ring d1 55.60 mm Shoulder diameter outer ring D1 74.60 mm