51209 nsk51209 d 45 mm Bore diameter D 73 mm Outside diameter T,T3 20 mm Height r (min.) 1 mm Chamfer dimension Ca 48000 N Basic dynamic load rating C0a 105000 N Basic static load rating Grease 2600 min 1 Grease lubrication Oil (Oil bath) 4000 min 1 Oil bath lubrication d1 73 mm Outside diameter shaft washer D1 47 mm Inner diameter housing washer da (min.) 62 mm Diameter of shaft abutment (min) Da (max.) 56 mm Diameter of housing abutment ra (max.) 1 mm Radius