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Bearing 7052 CD/P4A (SKF)

Angular contact ball bearings, super-precision 7052 CD/P4A

Bearing number : 7052 CD/P4A

Size (mm) : 260x400x65

Brand : SKF

Bore Diameter (mm) : 260

Outer Diameter (mm) : 400

Width (mm) : 65

Bearing dimensions and specification in SKF catalogue:

d - 260 mm

D - 400 mm

B - 65 mm

d₁ - 303.2 mm

d₂ - 303.2 mm

D₁ - 356.8 mm

r_1,2 - min. - 4 mm

r_3,4 - min. - 1.5 mm

a - 76.9 mm

d_a - min. - 275 mm

d_b - min. - 275 mm

D_a - max. - 385 mm

D_b - max. - 393 mm

r_a - max. - 3 mm

r_b - max. - 1.5 mm

d_n - 315 mm

Basic dynamic load rating - C - 416 kN

Basic static load rating - C₀ - 630 kN

Fatigue load limit - P_u - 14.6 kN

Limiting speed for grease lubrication - 3400 r/min

Limiting speed for oil lubrication - 5300 mm/min

Ball - D_w - 44.45 mm

Ball - z - 21

G_ref - 324 cm3

Calculation factor - f₀ - 15.7

Preload class A - G_A - 1550 N

Preload class B - G_B - 3100 N

Preload class C - G_C - 6200 N

Preload class D - G_D - 12400 N

Calculation factor - f - 1.13

Calculation factor - f₁ - 1

Calculation factor - f_2A - 1

Calculation factor - f_2B - 1.02

Calculation factor - f_2C - 1.05

Calculation factor - f_2D - 1.09

Calculation factor - f_HC - 1

Preload class A - 250 N/micron

Preload class B - 336 N/micron

Preload class C - 464 N/micron

Preload class D - 660 N/micron

Mass bearing - 25.56 kg

Tags :  SKF , 260x400x65