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Bearing 71912 ACB/HCP4AL (SKF)

Angular contact ball bearings, super-precision 71912 ACB/HCP4AL

Bearing number : 71912 ACB/HCP4AL

Size (mm) : 60x85x13

Brand : SKF

Bore Diameter (mm) : 60

Outer Diameter (mm) : 85

Width (mm) : 13

Bearing dimensions and specification in SKF catalogue:

d - 60 mm

D - 85 mm

B - 13 mm

d₁ - 68.94 mm

d₂ - 67.73 mm

D₂ - 78.36 mm

b - 2 mm

C₁ - 6.5 mm

C₂ - 3.8 mm

C₃ - 1.7 mm

r_1,2 - min. - 1 mm

r_3,4 - min. - 0.3 mm

a - 27.2 mm

d_a - min. - 64.6 mm

d_b - min. - 64.6 mm

D_a - max. - 80.4 mm

D_b - max. - 83 mm

r_a - max. - 1 mm

r_b - max. - 0.3 mm

d_n - 69.8 mm

Basic dynamic load rating - C - 9.8 kN

Basic static load rating - C₀ - 8.3 kN

Fatigue load limit - P_u - 0.355 kN

Limiting speed for grease lubrication - 22000 r/min

Limiting speed for oil lubrication - 36000 mm/min

Ball - D_w - 5.556 mm

Ball - z - 30

G_ref - 2.77 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 - 57 N

Preload class B - G_B - 115 N

Preload class C - G_C - 340 N

Calculation factor - f - 1.11

Calculation factor - f₁ - 0.99

Calculation factor - f_2A - 1

Calculation factor - f_2B - 1.02

Calculation factor - f_2C - 1.08

Calculation factor - f_HC - 1.01

Preload class A - 104 N/micron

Preload class B - 135 N/micron

Preload class C - 204 N/micron

Mass bearing - 0.182 kg

Tags :  SKF , 60x85x13