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Bearing 727 ACD/HCP4A (SKF)

Angular contact ball bearings, super-precision 727 ACD/HCP4A

Bearing number : 727 ACD/HCP4A

Size (mm) : 7x22x7

Brand : SKF

Bore Diameter (mm) : 7

Outer Diameter (mm) : 22

Width (mm) : 7

Bearing dimensions and specification in SKF catalogue:

d - 7 mm

D - 22 mm

B - 7 mm

d₁ - 12.6 mm

d₂ - 12.6 mm

D₁ - 17.4 mm

r_1,2 - min. - 0.3 mm

r_3,4 - min. - 0.2 mm

a - 7.1 mm

d_a - min. - 9.4 mm

d_b - min. - 9.4 mm

D_a - max. - 19.6 mm

D_b - max. - 20.2 mm

r_a - max. - 0.3 mm

r_b - max. - 0.2 mm

d_n - 13.6 mm

Basic dynamic load rating - C - 2.9 kN

Basic static load rating - C₀ - 1.1 kN

Fatigue load limit - P_u - 0.048 kN

Limiting speed for grease lubrication - 85000 r/min

Limiting speed for oil lubrication - 130000 mm/min

Ball - D_w - 3.969 mm

Ball - z - 9

G_ref - 0.162 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 - 18 N

Preload class B - G_B - 36 N

Preload class C - G_C - 72 N

Preload class D - G_D - 144 N

Calculation factor - f - 1.02

Calculation factor - f₁ - 0.99

Calculation factor - f_2A - 1

Calculation factor - f_2B - 1.01

Calculation factor - f_2C - 1.03

Calculation factor - f_2D - 1.06

Calculation factor - f_HC - 1.01

Preload class A - 30 N/micron

Preload class B - 39 N/micron

Preload class C - 51 N/micron

Preload class D - 68 N/micron

Mass bearing - 0.012 kg

Tags :  SKF , 7x22x7