Высокоточный двухрядный цилиндрический роликоподшипник NSK NN3056KRCC9P4

Описание

Boundary Dimensions NN: Inner ring rib type Bearing Type d 280 mm Bore diameter D 420 mm Outside diameter B 106 mm Width r(min.) 4 mm Chamfer Dimension Basic Load Ratings C r 1080 kN Basic Dynamic Load Rating C 0r 2080 kN Basic Static Load Rating Speeds Grease 1900 min -1 Limiting Speed Oil (Oil-air) 2300 min -1 Limiting Speed Dimensions Ew 384 mm Roller Circumscribed Circle Diameters s 3.5 mm Axial Displacement Abutment and Fillet Dimensions da(min.) 296 mm Diameter of Shaft Abutment d1a(min.) 298 mm Diameter of Shaft Abutment Da(min.) 388 mm Diameter of Housing Abutment Da(max.) 404 mm Diameter of Housing Abutment ra(max.) 3 mm Radius of Shaft or Housing Fillet Additional information CC1(max.) 55 μm Clearance in Bearings with Cylindrical Bores CC1(min.) 20 μm Clearance in Bearings with Cylindrical Bores CC1(max.) 110 μm Clearance in Bearings with Tapered Bores CC1(min.) 55 μm Clearance in Bearings with Tapered Bores CC0(max.) 70 μm Clearance in Bearings with Tapered Bores CC0(min.) 40 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. 55 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. 25 μm Clearance in Bearings with Tapered Bores 157 g/brg Recommended Grease Quantities Holes Dimensions dh 6 mm Hole Diameter W 12 mm Oil Groove Width m 4 Number of Holes Mass 47.7 kg Mass(approx.)