Bearing NNU 4972 BK/SPW33 (SKF)

Cylindrical roller bearings, double row, super-precision NNU 4972 BK/SPW33

Bearing number : NNU 4972 BK/SPW33

Size (mm) : 360x480x118

Brand : SKF

Bore Diameter (mm) : 360

Outer Diameter (mm) : 480

Width (mm) : 118

Bearing dimensions and specification in SKF catalogue:

d - 360 mm

D - 480 mm

B - 118 mm

D₁ - 439 mm

F - 399 mm

b - 16.7 mm

K - 9 mm

r_1,2 - min. - 3 mm

r_3,4 - min. - 1.5 mm

s - 5.5 mm

d_a - min. - 373 mm

d_a - max. - 395 mm

D_a - max. - 467 mm

r_a - max. - 2.5 mm

Basic dynamic load rating - C - 1120 kN

Basic static load rating - C₀ - 2800 kN

Fatigue load limit - P_u - 255 kN

Limiting speed for grease lubrication - 1500 r/min

Limiting speed for oil lubrication - 1700 r/min

Mass bearing - 55 kg

Designation

Bore Dia, mm

Outer Dia, mm: