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Bearing 71960 CDMA/P4A (SKF)

Angular contact ball bearings, super-precision 71960 CDMA/P4A

Bearing number : 71960 CDMA/P4A

Size (mm) : 300x420x56

Brand : SKF

Bore Diameter (mm) : 300

Outer Diameter (mm) : 420

Width (mm) : 56

Bearing dimensions and specification in SKF catalogue:

d - 300 mm

D - 420 mm

B - 56 mm

d₁ - 337 mm

d₂ - 337 mm

D₁ - 383 mm

r_1,2 - min. - 3 mm

r_3,4 - min. - 1.1 mm

a - 76.4 mm

d_a - min. - 313 mm

d_b - min. - 313 mm

D_a - max. - 405 mm

D_b - max. - 414 mm

r_a - max. - 2.5 mm

r_b - max. - 1 mm

d_n - 347 mm

Basic dynamic load rating - C - 371 kN

Basic static load rating - C₀ - 600 kN

Fatigue load limit - P_u - 13.4 kN

Limiting speed for grease lubrication - 3000 r/min

Limiting speed for oil lubrication - 4500 mm/min

Ball - D_w - 38.1 mm

Ball - z - 26

G_ref - 265 cm3

Calculation factor - f₀ - 16.3

Preload class A - G_A - 1400 N

Preload class B - G_B - 2800 N

Preload class C - G_C - 5600 N

Preload class D - G_D - 11200 N

Calculation factor - f - 1.22

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 - 272 N/micron

Preload class B - 369 N/micron

Preload class C - 514 N/micron

Preload class D - 741 N/micron

Mass bearing - 23 kg

Tags :  SKF , 300x420x56