Высокоточный двухрядный цилиндрический роликоподшипник NSK NN3944MBKRCC1P4Y

Описание

Boundary Dimensions NN: Inner ring rib type Bearing Type d 220 mm Bore diameter D 300 mm Outside diameter B 60 mm Width r(min.) 2.1 mm Chamfer Dimension Basic Load Ratings C r 505 kN Basic Dynamic Load Rating C 0r 895 kN Basic Static Load Rating Speeds Grease 2500 min -1 Limiting Speed Oil (Oil-air) 3100 min -1 Limiting Speed Dimensions Ew 279 mm Roller Circumscribed Circle Diameters s 2.3 mm Axial Displacement Abutment and Fillet Dimensions da(min.) 231 mm Diameter of Shaft Abutment d1a(min.) 234 mm Diameter of Shaft Abutment Da(min.) 281 mm Diameter of Housing Abutment Da(max.) 289 mm Diameter of Housing Abutment ra(max.) 2 mm Radius of Shaft or Housing Fillet Additional information CC1(max.) 50 μm Clearance in Bearings with Cylindrical Bores CC1(min.) 15 μm Clearance in Bearings with Cylindrical Bores CC1(max.) 90 μm Clearance in Bearings with Tapered Bores CC1(min.) 45 μm Clearance in Bearings with Tapered Bores CC0(max.) 60 μm Clearance in Bearings with Tapered Bores CC0(min.) 35 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. 45 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. 20 μm Clearance in Bearings with Tapered Bores 37 g/brg Recommended Grease Quantities Holes Dimensions dh 4 mm Hole Diameter W 8 mm Oil Groove Width m 4 Number of Holes Mass 11.5 kg Mass(approx.)