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Bearing 7011 ACB/P4AL (SKF)

Angular contact ball bearings, super-precision 7011 ACB/P4AL

Bearing number : 7011 ACB/P4AL

Size (mm) : 55x90x18

Brand : SKF

Bore Diameter (mm) : 55

Outer Diameter (mm) : 90

Width (mm) : 18

Bearing dimensions and specification in SKF catalogue:

d - 55 mm

D - 90 mm

B - 18 mm

d₁ - 68.18 mm

d₂ - 66.65 mm

D₂ - 79.39 mm

b - 2.2 mm

C₁ - 9 mm

C₂ - 4.3 mm

C₃ - 2.8 mm

r_1,2 - min. - 1.1 mm

r_3,4 - min. - 0.6 mm

a - 26 mm

d_a - min. - 61 mm

d_b - min. - 61 mm

D_a - max. - 84 mm

D_b - max. - 86.8 mm

r_a - max. - 1 mm

r_b - max. - 0.6 mm

d_n - 69.2 mm

Basic dynamic load rating - C - 13.3 kN

Basic static load rating - C₀ - 10.4 kN

Fatigue load limit - P_u - 0.44 kN

Limiting speed for grease lubrication - 19000 r/min

Limiting speed for oil lubrication - 30000 mm/min

Ball - D_w - 6.747 mm

Ball - z - 26

G_ref - 4.69 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 - 78 N

Preload class B - G_B - 155 N

Preload class C - G_C - 470 N

Calculation factor - f - 1.06

Calculation factor - f₁ - 0.99

Calculation factor - f_2A - 1

Calculation factor - f_2B - 1.01

Calculation factor - f_2C - 1.04

Calculation factor - f_HC - 1

Preload class A - 100 N/micron

Preload class B - 128 N/micron

Preload class C - 194 N/micron

Mass bearing - 0.42 kg

Tags :  SKF , 55x90x18