2311 k nsk2311K d 55 mm Bore diameter D 120 mm Outside diameter B 43 mm Width r (min.) 2 mm Chamfer dimension Cr 84000 N Basic dynamic load rating C0r 24000 N Basic static load rating Grease 4800 min 1 Grease lubrication Oil (Oil bath) 6000 min 1 Oil bath lubrication da (min.) 64 mm Diameter of shaft abutment (min) Da (max.) 111 mm Diameter of housing abutment ra (max.) 2 mm Radius of shaft or housing fillet e 0. 41 Constant Y2 2. 4 Axial load Factors Y3 1. 5