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Bearing 71960 ACDMA/HCP4A (SKF)

Angular contact ball bearings, super-precision 71960 ACDMA/HCP4A

Bearing number : 71960 ACDMA/HCP4A

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 - 112.3 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 - 351 kN

Basic static load rating - C₀ - 560 kN

Fatigue load limit - P_u - 12.7 kN

Limiting speed for grease lubrication - 2600 r/min

Limiting speed for oil lubrication - 4000 mm/min

Ball - D_w - 38.1 mm

Ball - z - 26

G_ref - 265 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 - 2200 N

Preload class B - G_B - 4400 N

Preload class C - G_C - 8800 N

Preload class D - G_D - 17600 N

Calculation factor - f - 1.22

Calculation factor - f₁ - 0.98

Calculation factor - f_2A - 1

Calculation factor - f_2B - 1.07

Calculation factor - f_2C - 1.12

Calculation factor - f_2D - 1.17

Calculation factor - f_HC - 1.04

Preload class A - 736 N/micron

Preload class B - 961 N/micron

Preload class C - 1272 N/micron

Preload class D - 1718 N/micron

Mass bearing - 19.4 kg

Tags :  SKF , 300x420x56