Высокоточный двухрядный цилиндрический роликоподшипник NSK NN4976E44CC1P4Y

Описание

Boundary Dimensions NN: Inner ring rib type Bearing Type d 380 mm Bore diameter D 520 mm Outside diameter B 140 mm Width r(min.) 4 mm Chamfer Dimension Basic Load Ratings C r 1880 kN Basic Dynamic Load Rating C 0r 4600 kN Basic Static Load Rating Speeds Grease 1500 min -1 Limiting Speed Oil (Oil-air) 1800 min -1 Limiting Speed Dimensions Ew 485 mm Roller Circumscribed Circle Diameters s 3.8 mm Axial Displacement Abutment and Fillet Dimensions da(min.) 396 mm Diameter of Shaft Abutment d1a(min.) 408 mm Diameter of Shaft Abutment Da(min.) 488 mm Diameter of Housing Abutment Da(max.) 504 mm Diameter of Housing Abutment ra(max.) 3 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 Holes Dimensions dh 8 mm Hole Diameter W 15 mm Oil Groove Width m 4 Number of Holes Mass 81.3 kg Mass(approx.)