Bearing NNU 4960 BK/SPW33 (SKF)

Cylindrical roller bearings, double row, super-precision NNU 4960 BK/SPW33

Bearing number : NNU 4960 BK/SPW33

Size (mm) : 300x420x118

Brand : SKF

Bore Diameter (mm) : 300

Outer Diameter (mm) : 420

Width (mm) : 118

Bearing dimensions and specification in SKF catalogue:

d - 300 mm

D - 420 mm

B - 118 mm

D₁ - 379 mm

F - 339 mm

b - 16.7 mm

K - 3 mm

r_1,2 - min. - 3 mm

r_3,4 - min. - 1.1 mm

s - 5.5 mm

d_a - min. - 313 mm

d_a - max. - 335 mm

D_a - max. - 407 mm

r_a - max. - 2.5 mm

d_n - 362 mm

Basic dynamic load rating - C - 1020 kN

Basic static load rating - C₀ - 2360 kN

Fatigue load limit - P_u - 224 kN

Limiting speed for grease lubrication - 1800 r/min

Limiting speed for oil lubrication - 2000 mm/min

G_ref - 420 cm

Mass bearing - 50 kg

Designation

Bore Dia, mm

Outer Dia, mm: