Однорядный цилиндрический роликоподшипник NSK N228M

Описание

Boundary Dimensions d 140 mm Bore diameter D 250 mm Outside diameter B 42 mm Width EW 221 mm Raceway diameter of outer ring r (min.) 3 mm Chamfer dimension r1 (min.) 3 mm Chamfer dimension Basic Load Ratings C r 400000 N Basic dynamic load rating C 0r 420000 N Basic static load rating Speeds Thermal Speed Rating (Oil-bath) 3400 min -1 Oil-bath lubrication subject to conditions outlined in ISO 15312 Grease 2400 min -1 Grease lubrication Oil (Oil-bath) 3000 min -1 Oil-bath lubrication Abutment and Fillet Dimensions da (min.) 153 mm Diameter of shaft abutment Db (min.) 226 mm Diameter of housing abutment Db (max.) 237 mm Diameter of housing abutment ra (max.) 2.5 mm Radius of shaft or housing fillet rb (max.) 2.5 mm Radius of shaft or housing fillet Mass Mass approx. 8.98 kg Mass approx.