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Bearing 71809 ACD/HCP4 (SKF)

Angular contact ball bearings, super-precision 71809 ACD/HCP4

Bearing number : 71809 ACD/HCP4

Size (mm) : 45x58x7

Brand : SKF

Bore Diameter (mm) : 45

Outer Diameter (mm) : 58

Width (mm) : 7

Bearing dimensions and specification in SKF catalogue:

d - 45 mm

D - 58 mm

B - 7 mm

d₁ - 49.6 mm

d₂ - 49.6 mm

D₁ - 53.6 mm

r_1,2 - min. - 0.3 mm

r_3,4 - min. - 0.15 mm

a - 15.5 mm

d_a - min. - 47 mm

d_b - min. - 47 mm

D_a - max. - 56 mm

D_b - max. - 57.2 mm

r_a - max. - 0.3 mm

r_b - max. - 0.15 mm

d_n - 50 mm

Basic dynamic load rating - C - 4.6 kN

Basic static load rating - C₀ - 5 kN

Fatigue load limit - P_u - 0.212 kN

Limiting speed for grease lubrication - 24000 r/min

Limiting speed for oil lubrication - 38000 mm/min

Ball - D_w - 3.175 mm

Ball - z - 31

G_ref - 0.36 cm3

Calculation factor - e - 0.68

Calculation factor - Y₂ - 0.87

Calculation factor - Y₀ - 0.38

Calculation factor - X₂ - 0.41

Calculation factor - Y₁ - 0.92

Calculation factor - Y₂ - 1.41

Calculation factor - Y₀ - 0.76

Calculation factor - X₂ - 0.67

Preload class A - G_A - 41 N

Preload class B - G_B - 125 N

Preload class C - G_C - 250 N

Calculation factor - f - 1.24

Calculation factor - f₁ - 0.97

Calculation factor - f_2A - 1

Calculation factor - f_2B - 1.09

Calculation factor - f_2C - 1.17

Calculation factor - f_HC - 1.02

Preload class A - 97 N/micron

Preload class B - 154 N/micron

Preload class C - 210 N/micron

Mass bearing - 0.037 kg

Tags :  SKF , 45x58x7