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Bearing 71806 ACD/P4 (SKF)

Angular contact ball bearings, super-precision 71806 ACD/P4

Bearing number : 71806 ACD/P4

Size (mm) : 30x42x7

Brand : SKF

Bore Diameter (mm) : 30

Outer Diameter (mm) : 42

Width (mm) : 7

Bearing dimensions and specification in SKF catalogue:

d - 30 mm

D - 42 mm

B - 7 mm

d₁ - 34.1 mm

d₂ - 34.1 mm

D₁ - 38.1 mm

r_1,2 - min. - 0.3 mm

r_3,4 - min. - 0.15 mm

a - 11.9 mm

d_a - min. - 32 mm

d_b - min. - 32 mm

D_a - max. - 40 mm

D_b - max. - 41.2 mm

r_a - max. - 0.3 mm

r_b - max. - 0.15 mm

d_n - 34.5 mm

Basic dynamic load rating - C - 4.2 kN

Basic static load rating - C₀ - 3.6 kN

Fatigue load limit - P_u - 0.15 kN

Limiting speed for grease lubrication - 28000 r/min

Limiting speed for oil lubrication - 45000 mm/min

Ball - D_w - 3.175 mm

Ball - z - 23

G_ref - 0.24 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 - 37 N

Preload class B - G_B - 110 N

Preload class C - G_C - 220 N

Calculation factor - f - 1.14

Calculation factor - f₁ - 0.97

Calculation factor - f_2A - 1

Calculation factor - f_2B - 1.08

Calculation factor - f_2C - 1.15

Calculation factor - f_HC - 1

Preload class A - 69 N/micron

Preload class B - 106 N/micron

Preload class C - 144 N/micron

Mass bearing - 0.026 kg

Tags :  SKF , 30x42x7