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Bearing 71828 ACD/P4 (SKF)

Angular contact ball bearings, super-precision 71828 ACD/P4

Bearing number : 71828 ACD/P4

Size (mm) : 140x175x18

Brand : SKF

Bore Diameter (mm) : 140

Outer Diameter (mm) : 175

Width (mm) : 18

Bearing dimensions and specification in SKF catalogue:

d - 140 mm

D - 175 mm

B - 18 mm

d₁ - 151.3 mm

d₂ - 151.3 mm

D₁ - 163.71 mm

r_1,2 - min. - 1.1 mm

r_3,4 - min. - 0.6 mm

a - 45.8 mm

d_a - min. - 146 mm

d_b - min. - 146 mm

D_a - max. - 169 mm

D_b - max. - 171.8 mm

r_a - max. - 1 mm

r_b - max. - 0.6 mm

d_n - 153.2 mm

Basic dynamic load rating - C - 42.3 kN

Basic static load rating - C₀ - 58.5 kN

Fatigue load limit - P_u - 2 kN

Limiting speed for grease lubrication - 6000 r/min

Limiting speed for oil lubrication - 9000 mm/min

Ball - D_w - 10.319 mm

Ball - z - 35

G_ref - 9.9 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 - 380 N

Preload class B - G_B - 1140 N

Preload class C - G_C - 2280 N

Calculation factor - f - 1.43

Calculation factor - f₁ - 0.97

Calculation factor - f_2A - 1

Calculation factor - f_2B - 1.08

Calculation factor - f_2C - 1.15

Calculation factor - f_HC - 1

Preload class A - 306 N/micron

Preload class B - 489 N/micron

Preload class C - 675 N/micron

Mass bearing - 0.8 kg

Tags :  SKF , 140x175x18