6808 nsk6808 d 40 mm Bore diameter D 52 mm Outside diameter B 7 mm Width r (min.) 0. 3 mm Chamfer dimension d1 48. 5 mm Outside diameter of inner ring D1 43. 1 mm Bore diameter of outer ring Cr 7000 N Basic dynamic load rating C0r 5550 N Basic static load rating Grease 12000 min 1 Grease lubrication Oil (Oil bath) 14000 min 1 Oil bath lubrication da (min.) 42 mm Diameter of shaft abutment (min) da (max.) 42 mm Diameter of shaft abutment Da (max.) 50 mm