Высокоточный двухрядный цилиндрический роликоподшипник NSK NN4972KRCC1P4

Описание

Boundary Dimensions NN: Inner ring rib type Bearing Type d 360 mm Bore diameter D 480 mm Outside diameter B 118 mm Width r(min.) 3 mm Chamfer Dimension Basic Load Ratings C r 1390 kN Basic Dynamic Load Rating C 0r 3550 kN Basic Static Load Rating Speeds Grease 1600 min -1 Limiting Speed Oil (Oil-air) 1900 min -1 Limiting Speed Dimensions Ew 448 mm Roller Circumscribed Circle Diameters s 3.0 mm Axial Displacement Abutment and Fillet Dimensions da(min.) 373 mm Diameter of Shaft Abutment d1a(min.) 383 mm Diameter of Shaft Abutment Da(min.) 451 mm Diameter of Housing Abutment Da(max.) 467 mm Diameter of Housing Abutment ra(max.) 2.5 mm Radius of Shaft or Housing Fillet Additional information CC1(max.) 75 μm Clearance in Bearings with Cylindrical Bores CC1(min.) 25 μm Clearance in Bearings with Cylindrical Bores CC1(max.) 150 μm Clearance in Bearings with Tapered Bores CC1(min.) 75 μm Clearance in Bearings with Tapered Bores CC0(max.) 90 μm Clearance in Bearings with Tapered Bores CC0(min.) 50 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. 75 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. 35 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 55.1 kg Mass(approx.)