Bearings Online Catalogue

Home > Bearings Catalogue Online > Angular Contact Ball Bearings

Bearing 7052 ACD/P4A (SKF)

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

Bearing number : 7052 ACD/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 - 109.8 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 - 397 kN

Basic static load rating - C₀ - 600 kN

Fatigue load limit - P_u - 14 kN

Limiting speed for grease lubrication - 3000 r/min

Limiting speed for oil lubrication - 4500 mm/min

Ball - D_w - 44.45 mm

Ball - z - 21

G_ref - 324 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 - 2480 N

Preload class B - G_B - 4960 N

Preload class C - G_C - 9920 N

Preload class D - G_D - 19840 N

Calculation factor - f - 1.13

Calculation factor - f₁ - 0.99

Calculation factor - f_2A - 1

Calculation factor - f_2B - 1.02

Calculation factor - f_2C - 1.05

Calculation factor - f_2D - 1.08

Calculation factor - f_HC - 1

Preload class A - 617 N/micron

Preload class B - 801 N/micron

Preload class C - 1053 N/micron

Preload class D - 1409 N/micron

Mass bearing - 25.56 kg

Tags :  SKF , 260x400x65