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Bearing 71821 ACD/HCP4 (SKF)

Angular contact ball bearings, super-precision 71821 ACD/HCP4

Bearing number : 71821 ACD/HCP4

Size (mm) : 105x130x13

Brand : SKF

Bore Diameter (mm) : 105

Outer Diameter (mm) : 130

Width (mm) : 13

Bearing dimensions and specification in SKF catalogue:

d - 105 mm

D - 130 mm

B - 13 mm

d₁ - 113.2 mm

d₂ - 113.2 mm

D₁ - 122 mm

r_1,2 - min. - 1 mm

r_3,4 - min. - 0.3 mm

a - 34 mm

d_a - min. - 109.6 mm

d_b - min. - 109.6 mm

D_a - max. - 125.4 mm

D_b - max. - 128 mm

r_a - max. - 1 mm

r_b - max. - 0.3 mm

d_n - 114.6 mm

Basic dynamic load rating - C - 21.6 kN

Basic static load rating - C₀ - 28.5 kN

Fatigue load limit - P_u - 1.1 kN

Limiting speed for grease lubrication - 9500 r/min

Limiting speed for oil lubrication - 15000 mm/min

Ball - D_w - 7.144 mm

Ball - z - 35

G_ref - 4 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 - 200 N

Preload class B - G_B - 600 N

Preload class C - G_C - 1200 N

Calculation factor - f - 1.44

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 - 244 N/micron

Preload class B - 392 N/micron

Preload class C - 541 N/micron

Mass bearing - 0.289 kg

Tags :  SKF , 105x130x13