7306 bw nsk7306BW d 30 mm Bore diameter D 72 mm Outside diameter B 19 mm Width r (min.) 1. 1 mm Chamfer dimension r1 (min.) 0. 6 mm Chamfer dimension Cr 34000 N Basic dynamic load rating C0r 19300 N Basic static load rating Grease 6300 min 1 Grease lubrication Oil (Oil bath) 8500 min 1 Oil bath lubrication a 30. 9 mm Effective load center da (min.) 37 mm Diameter of shaft abutment (min) Da (max.) 65 mm Diameter of housing abutment ra (max.) 1 mm Radius of shaft