Высокоточный двухрядный цилиндрический роликоподшипник NSK NN4960KRCC0P4Y

Описание

Boundary Dimensions NN: Inner ring rib type Bearing Type d 300 mm Bore diameter D 420 mm Outside diameter B 118 mm Width r(min.) 3 mm Chamfer Dimension Basic Load Ratings C r 1230 kN Basic Dynamic Load Rating C 0r 2870 kN Basic Static Load Rating Speeds Grease 1800 min -1 Limiting Speed Oil (Oil-air) 2300 min -1 Limiting Speed Dimensions Ew 388 mm Roller Circumscribed Circle Diameters s 2.5 mm Axial Displacement Abutment and Fillet Dimensions da(min.) 313 mm Diameter of Shaft Abutment d1a(min.) 318 mm Diameter of Shaft Abutment Da(min.) 391 mm Diameter of Housing Abutment Da(max.) 407 mm Diameter of Housing Abutment ra(max.) 2.5 mm Radius of Shaft or Housing Fillet Additional information CC1(max.) 60 μm Clearance in Bearings with Cylindrical Bores CC1(min.) 20 μm Clearance in Bearings with Cylindrical Bores CC1(max.) 120 μm Clearance in Bearings with Tapered Bores CC1(min.) 60 μm Clearance in Bearings with Tapered Bores CC0(max.) 75 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. 60 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 47.6 kg Mass(approx.)