Bearing NN 3044 K/SPW33 (SKF)

Cylindrical roller bearings, double row, super-precision NN 3044 K/SPW33

Bearing number : NN 3044 K/SPW33

Size (mm) : 220x340x90

Brand : SKF

Bore Diameter (mm) : 220

Outer Diameter (mm) : 340

Width (mm) : 90

Bearing dimensions and specification in SKF catalogue:

d - 220 mm

D - 340 mm

B - 90 mm

d₁ - 265.2 mm

E - 310 mm

b - 15 mm

K - 7.5 mm

r_1,2 - min. - 3 mm

r_3,4 - min. - 1.1 mm

s - 2 mm

d_a - min. - 233 mm

D_a - min. - 313 mm

D_a - max. - 327 mm

r_a - max. - 2.5 mm

d_n - 302.4 mm

Basic dynamic load rating - C - 809 kN

Basic static load rating - C₀ - 1460 kN

Fatigue load limit - P_u - 143 kN

Limiting speed for grease lubrication - 2400 r/min

Limiting speed for oil lubrication - 2800 mm/min

G_ref - 260 cm

Static radial stiffness (guideline value) - 4700 N/micron

Mass bearing - 27.5 kg

Designation

Bore Dia, mm

Outer Dia, mm: