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Bearing 71812 ACD/HCP4 (SKF)

Angular contact ball bearings, super-precision 71812 ACD/HCP4

Bearing number : 71812 ACD/HCP4

Size (mm) : 60x78x10

Brand : SKF

Bore Diameter (mm) : 60

Outer Diameter (mm) : 78

Width (mm) : 10

Bearing dimensions and specification in SKF catalogue:

d - 60 mm

D - 78 mm

B - 10 mm

d₁ - 65.7 mm

d₂ - 65.7 mm

D₁ - 72.5 mm

r_1,2 - min. - 0.3 mm

r_3,4 - min. - 0.15 mm

a - 21.1 mm

d_a - min. - 62 mm

d_b - min. - 62 mm

D_a - max. - 76 mm

D_b - max. - 77.2 mm

r_a - max. - 0.3 mm

r_b - max. - 0.15 mm

d_n - 66.4 mm

Basic dynamic load rating - C - 12.7 kN

Basic static load rating - C₀ - 13.4 kN

Fatigue load limit - P_u - 0.57 kN

Limiting speed for grease lubrication - 18000 r/min

Limiting speed for oil lubrication - 26000 mm/min

Ball - D_w - 5.556 mm

Ball - z - 28

G_ref - 1.2 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 - 114 N

Preload class B - G_B - 340 N

Preload class C - G_C - 680 N

Calculation factor - f - 1.3

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 - 156 N/micron

Preload class B - 247 N/micron

Preload class C - 340 N/micron

Mass bearing - 0.088 kg

Tags :  SKF , 60x78x10