Высокоточный двухрядный цилиндрический роликоподшипник NSK NN4968KRCC0P4Y

Описание

Boundary Dimensions NN: Inner ring rib type Bearing Type d 340 mm Bore diameter D 460 mm Outside diameter B 118 mm Width r(min.) 3 mm Chamfer Dimension Basic Load Ratings C r 1350 kN Basic Dynamic Load Rating C 0r 3400 kN Basic Static Load Rating Speeds Grease 1700 min -1 Limiting Speed Oil (Oil-air) 2000 min -1 Limiting Speed Dimensions Ew 428 mm Roller Circumscribed Circle Diameters s 3.0 mm Axial Displacement Abutment and Fillet Dimensions da(min.) 353 mm Diameter of Shaft Abutment d1a(min.) 363 mm Diameter of Shaft Abutment Da(min.) 431 mm Diameter of Housing Abutment Da(max.) 447 mm Diameter of Housing Abutment ra(max.) 2.5 mm Radius of Shaft or Housing Fillet Additional information CC1(max.) 65 μm Clearance in Bearings with Cylindrical Bores CC1(min.) 20 μm Clearance in Bearings with Cylindrical Bores CC1(max.) 135 μm Clearance in Bearings with Tapered Bores CC1(min.) 65 μm Clearance in Bearings with Tapered Bores CC0(max.) 80 μm Clearance in Bearings with Tapered Bores CC0(min.) 45 μm Clearance in Bearings with Tapered Bores CC9(max.) Clearance CC9 applicale to cylindrical roller bearings with tapered bores in ISO Tolerance Classes 5 and 4. 65 μm Clearance in Bearings with Tapered Bores CC9(min.) Clearance CC9 applicale to cylindrical roller bearings with tapered bores in ISO Tolerance Classes 5 and 4. 30 μm Clearance in Bearings with Tapered Bores Holes Dimensions dh 6 mm Hole Diameter W 12 mm Oil Groove Width m 4 Number of Holes Mass 52.6 kg Mass(approx.)