Высокоточный двухрядный цилиндрический роликоподшипник NSK NNU4921MBCC1P5

Описание

Boundary Dimensions NNU: Outer ring rib type Bearing Type d 105 mm Bore diameter D 145 mm Outside diameter B 40 mm Width r(min.) 1.1 mm Chamfer Dimension Basic Load Ratings C r 185 kN Basic Dynamic Load Rating C 0r 315 kN Basic Static Load Rating Speeds Grease 6000 min -1 Limiting Speed Oil (Oil-air) 7200 min -1 Limiting Speed Dimensions Ew 117 mm Roller Circumscribed Circle Diameters s 1.2 mm Axial Displacement Abutment and Fillet Dimensions da(min.) 111.5 mm Diameter of Shaft Abutment d1a(min.) 113 mm Diameter of Shaft Abutment Da(max.) 138.5 mm Diameter of Housing Abutment ra(max.) 1 mm Radius of Shaft or Housing Fillet Additional information CC1(max.) 30 μm Clearance in Bearings with Cylindrical Bores CC1(min.) 10 μm Clearance in Bearings with Cylindrical Bores 5.6 g/brg Recommended Grease Quantities Holes Dimensions dh 2.5 mm Hole Diameter W 5 mm Oil Groove Width m 4 Number of Holes Mass 1.83 kg Mass(approx.)