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Bearing 7212 ACD/HCP4A (SKF)

Angular contact ball bearings, super-precision 7212 ACD/HCP4A

Bearing number : 7212 ACD/HCP4A

Size (mm) : 60x110x22

Brand : SKF

Bore Diameter (mm) : 60

Outer Diameter (mm) : 110

Width (mm) : 22

Bearing dimensions and specification in SKF catalogue:

d - 60 mm

D - 110 mm

B - 22 mm

d₁ - 76.4 mm

d₂ - 76.4 mm

D₁ - 93.6 mm

r_1,2 - min. - 1.5 mm

r_3,4 - min. - 0.6 mm

a - 30.9 mm

d_a - min. - 69 mm

d_b - min. - 69 mm

D_a - max. - 101 mm

D_b - max. - 105.8 mm

r_a - max. - 1.5 mm

r_b - max. - 0.6 mm

d_n - 80.1 mm

Basic dynamic load rating - C - 55.3 kN

Basic static load rating - C₀ - 45 kN

Fatigue load limit - P_u - 1.9 kN

Limiting speed for grease lubrication - 14000 r/min

Limiting speed for oil lubrication - 22000 mm/min

Ball - D_w - 14.288 mm

Ball - z - 16

G_ref - 10.08 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 - 350 N

Preload class B - G_B - 700 N

Preload class C - G_C - 1400 N

Preload class D - G_D - 2800 N

Calculation factor - f - 1.07

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 - 202 N/micron

Preload class B - 264 N/micron

Preload class C - 349 N/micron

Preload class D - 470 N/micron

Mass bearing - 0.694 kg

Tags :  SKF , 60x110x22