7304beat85 Nsk7304BEAT85 d 20 mm Bore diameter D 52 mm Outside diameter B 15 mm Width r (min.) 1. 1 mm Chamfer dimension r1 (min.) 0. 6 mm Chamfer dimension Cr 20800 N Basic dynamic load rating C0r 10500 N Basic static load rating Grease 13000 min 1 Grease lubrication Oil (Oil bath) 18000 min 1 Oil bath lubrication a 22. 6 mm Effective load center da (min.) 27 mm Diameter of shaft abutment (min) Da (max.) 45 mm Diameter of housing abutment ra (max.) 1 mm Radius of