6311 C3 Nsk6311 d 55 mm Bore diameter D 120 mm Outside diameter B 29 mm Width r (min.) 2 mm Chamfer dimension Cr 78500 N Basic dynamic load rating C0r 44500 N Basic static load rating Grease 6700 min 1 Grease lubrication Oil (Oil bath) 8000 min 1 Oil bath lubrication da (min.) 64 mm Diameter of shaft abutment (min) da (max.) 72. 5 mm Diameter of shaft abutment Da (max.) 111 mm Diameter of housing abutment ra (max.) 2 mm Radius of shaft or housing fillet fo 13. 1