Bearing NNU 49/670 BK/SPW33X (SKF)

Cylindrical roller bearings, double row, super-precision NNU 49/670 BK/SPW33X

Bearing number : NNU 49/670 BK/SPW33X

Size (mm) : 670x900x230

Brand : SKF

Bore Diameter (mm) : 670

Outer Diameter (mm) : 900

Width (mm) : 230

Bearing dimensions and specification in SKF catalogue:

d - 670 mm

D - 900 mm

B - 230 mm

D₁ - 821.2 mm

F - 738 mm

b - 22.3 mm

K - 12 mm

r_1,2 - min. - 6 mm

r_3,4 - min. - 3 mm

s - 6 mm

d_a - min. - 693 mm

d_a - max. - 732 mm

D_a - max. - 877 mm

r_a - max. - 5 mm

Basic dynamic load rating - C - 4950 kN

Basic static load rating - C₀ - 13700 kN

Fatigue load limit - P_u - 930 kN

Limiting speed for grease lubrication - 700 r/min

Limiting speed for oil lubrication - 800 r/min

Mass bearing - 410 kg

Designation

Bore Dia, mm

Outer Dia, mm: