Bearing NNU 4964 BK/SPW33 (SKF)

Cylindrical roller bearings, double row, super-precision NNU 4964 BK/SPW33

Bearing number : NNU 4964 BK/SPW33

Size (mm) : 320x440x118

Brand : SKF

Bore Diameter (mm) : 320

Outer Diameter (mm) : 440

Width (mm) : 118

Bearing dimensions and specification in SKF catalogue:

d - 320 mm

D - 440 mm

B - 118 mm

D₁ - 399 mm

F - 359 mm

b - 16.7 mm

K - 9 mm

r_1,2 - min. - 3 mm

r_3,4 - min. - 2 mm

s - 5.5 mm

d_a - min. - 333 mm

d_a - max. - 355 mm

D_a - max. - 427 mm

r_a - max. - 2.5 mm

Basic dynamic load rating - C - 1060 kN

Basic static load rating - C₀ - 2500 kN

Fatigue load limit - P_u - 236 kN

Limiting speed for grease lubrication - 1700 r/min

Limiting speed for oil lubrication - 1900 r/min

Mass bearing - 50 kg

Designation

Bore Dia, mm

Outer Dia, mm: