Высокоточный двухрядный цилиндрический роликоподшипник NSK NNU49/670E44CC1P4

Описание

Boundary Dimensions NNU: Outer ring rib type Bearing Type d 670 mm Bore diameter D 900 mm Outside diameter B 230 mm Width r(min.) 6 mm Chamfer Dimension Basic Load Ratings C r 4150 kN Basic Dynamic Load Rating C 0r 11500 kN Basic Static Load Rating Speeds Grease 700 min -1 Limiting Speed Oil (Oil-air) 900 min -1 Limiting Speed Dimensions Ew 742 mm Roller Circumscribed Circle Diameters s 6.2 mm Axial Displacement Abutment and Fillet Dimensions da(min.) 696 mm Diameter of Shaft Abutment d1a(min.) 715 mm Diameter of Shaft Abutment Da(max.) 874 mm Diameter of Housing Abutment ra(max.) 5 mm Radius of Shaft or Housing Fillet Additional information CC1(max.) 130 μm Clearance in Bearings with Cylindrical Bores CC1(min.) 30 μm Clearance in Bearings with Cylindrical Bores Holes Dimensions dh 12 mm Hole Diameter W 20 mm Oil Groove Width m 4 Number of Holes Mass 381 kg Mass(approx.)