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Bearing 71917 CD/P4AL (SKF)

Angular contact ball bearings, super-precision 71917 CD/P4AL

Bearing number : 71917 CD/P4AL

Size (mm) : 85x120x18

Brand : SKF

Bore Diameter (mm) : 85

Outer Diameter (mm) : 120

Width (mm) : 18

Bearing dimensions and specification in SKF catalogue:

d - 85 mm

D - 120 mm

B - 18 mm

d₁ - 95.8 mm

d₂ - 95.8 mm

D₁ - 109.2 mm

b - 2.6 mm

C₁ - 9.3 mm

C₂ - 4 mm

C₃ - 2.8 mm

r_1,2 - min. - 1.1 mm

r_3,4 - min. - 0.6 mm

a - 22.8 mm

d_a - min. - 91 mm

d_b - min. - 91 mm

D_a - max. - 114 mm

D_b - max. - 116 mm

r_a - max. - 1 mm

r_b - max. - 0.6 mm

d_n - 98.6 mm

Basic dynamic load rating - C - 46.2 kN

Basic static load rating - C₀ - 48 kN

Fatigue load limit - P_u - 2 kN

Limiting speed for grease lubrication - 10000 r/min

Limiting speed for oil lubrication - 17000 mm/min

Ball - D_w - 11.112 mm

Ball - z - 25

G_ref - 7.2 cm3

Calculation factor - f₀ - 16.2

Preload class A - G_A - 170 N

Preload class B - G_B - 340 N

Preload class C - G_C - 680 N

Preload class D - G_D - 1360 N

Calculation factor - f - 1.2

Calculation factor - f₁ - 1

Calculation factor - f_2A - 1

Calculation factor - f_2B - 1.04

Calculation factor - f_2C - 1.09

Calculation factor - f_2D - 1.15

Calculation factor - f_HC - 1

Preload class A - 89 N/micron

Preload class B - 122 N/micron

Preload class C - 172 N/micron

Preload class D - 251 N/micron

Mass bearing - 0.53 kg

Tags :  SKF , 85x120x18