Двухрядный цилиндрический роликоподшипник NSK NNU4948K

Описание

Boundary Dimensions d 240 mm Bore diameter D 320 mm Outside diameter B 80 mm Width FW 263 mm Raceway diameter of inner ring r (min.) 2.1 mm Chamfer dimension Basic Load Ratings C r 770000 N Basic dynamic load rating C 0r 1450000 N Basic static load rating Speeds Grease 1600 min -1 Grease lubrication Oil (Oil-bath) 2000 min -1 Oil-bath lubrication Abutment and Fillet Dimensions da (min.) 251 mm Diameter of shaft abutment da (max.) 262 mm Diameter of shaft abutment dc (min.) 269 mm Diameter of shaft abutment d1a (min.) 254 mm Diameter of spacer sleeve abutment Da (max.) 309 mm Diameter of housing abutment ra (max.) 2 mm Radius of shaft or housing fillet Mass Mass approx. 18 kg Mass approx.