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Bearing 71805 ACD/P4 (SKF)

Angular contact ball bearings, super-precision 71805 ACD/P4

Bearing number : 71805 ACD/P4

Size (mm) : 25x37x7

Brand : SKF

Bore Diameter (mm) : 25

Outer Diameter (mm) : 37

Width (mm) : 7

Bearing dimensions and specification in SKF catalogue:

d - 25 mm

D - 37 mm

B - 7 mm

d₁ - 29.1 mm

d₂ - 29.1 mm

D₁ - 33.1 mm

r_1,2 - min. - 0.3 mm

r_3,4 - min. - 0.15 mm

a - 10.8 mm

d_a - min. - 27 mm

d_b - min. - 27 mm

D_a - max. - 35 mm

D_b - max. - 36.2 mm

r_a - max. - 0.3 mm

r_b - max. - 0.15 mm

d_n - 29.5 mm

Basic dynamic load rating - C - 3.9 kN

Basic static load rating - C₀ - 3 kN

Fatigue load limit - P_u - 0.129 kN

Limiting speed for grease lubrication - 34000 r/min

Limiting speed for oil lubrication - 53000 mm/min

Ball - D_w - 3.175 mm

Ball - z - 20

G_ref - 0.21 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 - 35 N

Preload class B - G_B - 105 N

Preload class C - G_C - 210 N

Calculation factor - f - 1.11

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 - 60 N/micron

Preload class B - 95 N/micron

Preload class C - 128 N/micron

Mass bearing - 0.021 kg

Tags :  SKF , 25x37x7