Высокоточный двухрядный цилиндрический роликоподшипник NSK NN4944MBCC1P4

Описание

Boundary Dimensions NN: Inner 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 279 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(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 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 15.1 kg Mass(approx.)