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Bearing 71918 ACE/P4AH1 (SKF)

Angular contact ball bearings, super-precision 71918 ACE/P4AH1

Bearing number : 71918 ACE/P4AH1

Size (mm) : 90x125x18

Brand : SKF

Bore Diameter (mm) : 90

Outer Diameter (mm) : 125

Width (mm) : 18

Bearing dimensions and specification in SKF catalogue:

d - 90 mm

D - 125 mm

B - 18 mm

d₁ - 101 mm

d₂ - 97.9 mm

D₁ - 114.22 mm

K - 0.5 mm

C₁ - 5.48 mm

r_1,2 - min. - 1.1 mm

r_3,4 - min. - 0.6 mm

a - 35.9 mm

d_a - min. - 96 mm

d_b - min. - 93.2 mm

D_a - max. - 119 mm

D_b - max. - 121.8 mm

r_a - max. - 1 mm

r_b - max. - 0.6 mm

d_n - 103.5 mm

Basic dynamic load rating - C - 28.6 kN

Basic static load rating - C₀ - 23.2 kN

Fatigue load limit - P_u - 0.915 kN

Limiting speed for grease lubrication - 13000 r/min

Limiting speed for oil lubrication - 20000 mm/min

Ball - D_w - 11.112 mm

Ball - z - 24

G_ref - 7 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 - 260 N

Preload class B - G_B - 780 N

Preload class C - G_C - 1560 N

Calculation factor - f - 1.19

Calculation factor - f₁ - 0.99

Calculation factor - f_2A - 1

Calculation factor - f_2B - 1.04

Calculation factor - f_2C - 1.07

Calculation factor - f_HC - 1

Preload class A - 164 N/micron

Preload class B - 247 N/micron

Preload class C - 324 N/micron

Mass bearing - 0.54 kg

Tags :  SKF , 90x125x18