Однорядный цилиндрический роликоподшипник NSK NU221EMC4

Описание

Boundary Dimensions d 105 mm Bore diameter D 190 mm Outside diameter B 36 mm Width FW 125 mm Raceway diameter of inner ring r (min.) 2.1 mm Chamfer dimension r1 (min.) 2.1 mm Chamfer dimension Basic Load Ratings C r 320000 N Basic dynamic load rating C 0r 310000 N Basic static load rating Speeds Thermal Speed Rating (Oil-bath) 4300 min -1 Oil-bath lubrication subject to conditions outlined in ISO 15312 Mechanical (forced-circulation oil) 6000 min -1 Properly designed and controlled forced-circulation oil lubrication Grease 3400 min -1 Grease lubrication Oil (Oil-bath) 4000 min -1 Oil-bath lubrication Abutment and Fillet Dimensions db (min.) 116 mm Diameter of shaft / spacer sleeve abutment db (max.) 121 mm Diameter of shaft / spacer sleeve abutment dc (min.) 129 mm Diameter of shaft abutment Da (max.) 179 mm Diameter of housing abutment ra (max.) 2 mm Radius of shaft or housing fillet rb (max.) 2 mm Radius of shaft or housing fillet Mass Mass approx. 4.48 kg Mass approx.