Высокоточный двухрядный цилиндрический роликоподшипник NSK NNU4944MBE44CC1P4

Описание

Boundary Dimensions NNU: Outer ring rib type Bearing Type d 220 mm Bore diameter D 300 mm Outside diameter B 80 mm Width r(min.) 2.1 mm Chamfer Dimension Basic Load Ratings C r 690 kN Basic Dynamic Load Rating C 0r 1330 kN Basic Static Load Rating Speeds Grease 2500 min -1 Limiting Speed Oil (Oil-air) 3100 min -1 Limiting Speed Dimensions Ew 243 mm Roller Circumscribed Circle Diameters s 3.3 mm Axial Displacement Abutment and Fillet Dimensions da(min.) 231 mm Diameter of Shaft Abutment d1a(min.) 234 mm Diameter of Shaft Abutment Da(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 37 g/brg Recommended Grease Quantities Holes Dimensions dh 5 mm Hole Diameter W 9 mm Oil Groove Width m 4 Number of Holes Mass 15.2 kg Mass(approx.)