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Bearing 71818 ACD/P4 (SKF)

Angular contact ball bearings, super-precision 71818 ACD/P4

Bearing number : 71818 ACD/P4

Size (mm) : 90x115x13

Brand : SKF

Bore Diameter (mm) : 90

Outer Diameter (mm) : 115

Width (mm) : 13

Bearing dimensions and specification in SKF catalogue:

d - 90 mm

D - 115 mm

B - 13 mm

d₁ - 98.2 mm

d₂ - 98.2 mm

D₁ - 107.1 mm

r_1,2 - min. - 1 mm

r_3,4 - min. - 0.3 mm

a - 30.5 mm

d_a - min. - 94.6 mm

d_b - min. - 94.6 mm

D_a - max. - 110.4 mm

D_b - max. - 113 mm

r_a - max. - 1 mm

r_b - max. - 0.3 mm

d_n - 99.1 mm

Basic dynamic load rating - C - 20.3 kN

Basic static load rating - C₀ - 25 kN

Fatigue load limit - P_u - 1 kN

Limiting speed for grease lubrication - 10000 r/min

Limiting speed for oil lubrication - 15000 mm/min

Ball - D_w - 7.144 mm

Ball - z - 31

G_ref - 2.9 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 - 184 N

Preload class B - G_B - 555 N

Preload class C - G_C - 1110 N

Calculation factor - f - 1.33

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 - 194 N/micron

Preload class B - 307 N/micron

Preload class C - 420 N/micron

Mass bearing - 0.279 kg

Tags :  SKF , 90x115x13