6303dducm nsk6303DDU d 17 mm Bore diameter D 47 mm Outside diameter B 14 mm Width r (min.) 1 mm Chamfer dimension d1 40. 6 mm Outside diameter of inner ring D1 25. 8 mm Bore diameter of outer ring Cr 15000 N Basic dynamic load rating C0r 6650 N Basic static load rating Grease 11000 min 1 Grease lubrication da (min.) 22 mm Diameter of shaft abutment (min) da (max.) 25. 5 mm Diameter of shaft abutment Da (max.) 42 mm Diameter of housing abutment ra (max.) 1 mm