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Bearing 7038 ACD/P4A (SKF)

Angular contact ball bearings, super-precision 7038 ACD/P4A

Bearing number : 7038 ACD/P4A

Size (mm) : 190x290x46

Brand : SKF

Bore Diameter (mm) : 190

Outer Diameter (mm) : 290

Width (mm) : 46

Bearing dimensions and specification in SKF catalogue:

d - 190 mm

D - 290 mm

B - 46 mm

d₁ - 221.8 mm

d₂ - 221.8 mm

D₁ - 258.2 mm

r_1,2 - min. - 2.1 mm

r_3,4 - min. - 1.1 mm

a - 79.2 mm

d_a - min. - 201 mm

d_b - min. - 201 mm

D_a - max. - 279 mm

D_b - max. - 284 mm

r_a - max. - 2 mm

r_b - max. - 1 mm

d_n - 229.7 mm

Basic dynamic load rating - C - 234 kN

Basic static load rating - C₀ - 290 kN

Fatigue load limit - P_u - 8 kN

Limiting speed for grease lubrication - 4300 r/min

Limiting speed for oil lubrication - 6300 mm/min

Ball - D_w - 30.162 mm

Ball - z - 22

G_ref - 114 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 - 1450 N

Preload class B - G_B - 2900 N

Preload class C - G_C - 5800 N

Preload class D - G_D - 11600 N

Calculation factor - f - 1.14

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 - 471 N/micron

Preload class B - 613 N/micron

Preload class C - 809 N/micron

Preload class D - 1088 N/micron

Mass bearing - 9.513 kg

Tags :  SKF , 190x290x46