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Bearing 71801 CD/P4 (SKF)

Angular contact ball bearings, super-precision 71801 CD/P4

Bearing number : 71801 CD/P4

Size (mm) : 12x21x5

Brand : SKF

Bore Diameter (mm) : 12

Outer Diameter (mm) : 21

Width (mm) : 5

Bearing dimensions and specification in SKF catalogue:

d - 12 mm

D - 21 mm

B - 5 mm

d₁ - 15.1 mm

d₂ - 15.1 mm

D₁ - 18.1 mm

r_1,2 - min. - 0.3 mm

r_3,4 - min. - 0.15 mm

a - 4.7 mm

d_a - min. - 14 mm

d_b - min. - 14 mm

D_a - max. - 19 mm

D_b - max. - 20.2 mm

r_a - max. - 0.3 mm

r_b - max. - 0.15 mm

d_n - 15.4 mm

Basic dynamic load rating - C - 2.1 kN

Basic static load rating - C₀ - 1.2 kN

Fatigue load limit - P_u - 0.05 kN

Limiting speed for grease lubrication - 70000 r/min

Limiting speed for oil lubrication - 110000 mm/min

Ball - D_w - 2.381 mm

Ball - z - 14

G_ref - 0.07 cm3

Calculation factor - f₀ - 15.4

Preload class A - G_A - 11 N

Preload class B - G_B - 33 N

Preload class C - G_C - 66 N

Calculation factor - f - 1.06

Calculation factor - f₁ - 1

Calculation factor - f_2A - 1

Calculation factor - f_2B - 1.09

Calculation factor - f_2C - 1.16

Calculation factor - f_HC - 1

Preload class A - 15 N/micron

Preload class B - 25 N/micron

Preload class C - 37 N/micron

Mass bearing - 0.006 kg

Tags :  SKF , 12x21x5