6301dduc3e nsk6301DDU d 12 mm Bore diameter D 37 mm Outside diameter B 12 mm Width r (min.) 1 mm Chamfer dimension d1 31. 7 mm Outside diameter of inner ring D1 18 mm Bore diameter of outer ring Cr 10700 N Basic dynamic load rating C0r 4200 N Basic static load rating Grease 16000 min 1 Grease lubrication da (min.) 17 mm Diameter of shaft abutment (min) da (max.) 18 mm Diameter of shaft abutment Da (max.) 32 mm Diameter of housing abutment ra (max.) 1 mm Radius of