Bearing NN 3009 KTN/SP (SKF)

Cylindrical roller bearings, double row, super-precision NN 3009 KTN/SP

Bearing number : NN 3009 KTN/SP

Size (mm) : 45x75x23

Brand : SKF

Bore Diameter (mm) : 45

Outer Diameter (mm) : 75

Width (mm) : 23

Bearing dimensions and specification in SKF catalogue:

d - 45 mm

D - 75 mm

B - 23 mm

d₁ - 56.3 mm

E - 67.5 mm

r_1,2 - min. - 1 mm

r_3,4 - min. - 0.6 mm

s - 1.5 mm

d_a - min. - 50 mm

D_a - min. - 69 mm

D_a - max. - 70 mm

r_a - max. - 1 mm

d_n - 66.4 mm

Basic dynamic load rating - C - 50.1 kN

Basic static load rating - C₀ - 65.5 kN

Fatigue load limit - P_u - 7.6 kN

Limiting speed for grease lubrication - 12000 r/min

Limiting speed for oil lubrication - 14000 mm/min

G_ref - 2.4 cm

Static radial stiffness (guideline value) - 940 N/micron

Mass bearing - 0.38 kg

Designation

Bore Dia, mm

Outer Dia, mm: