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Bearing 71938 ACD/P4AH1 (SKF)

Angular contact ball bearings, super-precision 71938 ACD/P4AH1

Bearing number : 71938 ACD/P4AH1

Size (mm) : 190x260x33

Brand : SKF

Bore Diameter (mm) : 190

Outer Diameter (mm) : 260

Width (mm) : 33

Bearing dimensions and specification in SKF catalogue:

d - 190 mm

D - 260 mm

B - 33 mm

d₁ - 211.6 mm

d₂ - 211.6 mm

D₁ - 238.4 mm

K - 0.6 mm

C₁ - 8.6 mm

r_1,2 - min. - 2 mm

r_3,4 - min. - 1 mm

a - 69.2 mm

d_a - min. - 199 mm

d_b - min. - 199 mm

D_a - max. - 251 mm

D_b - max. - 255 mm

r_a - max. - 2 mm

r_b - max. - 1 mm

d_n - 217.4 mm

Basic dynamic load rating - C - 163 kN

Basic static load rating - C₀ - 208 kN

Fatigue load limit - P_u - 5.8 kN

Limiting speed for grease lubrication - 4500 r/min

Limiting speed for oil lubrication - 6700 mm/min

Ball - D_w - 22.225 mm

Ball - z - 28

G_ref - 57 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 - 1000 N

Preload class B - G_B - 2000 N

Preload class C - G_C - 4000 N

Preload class D - G_D - 8000 N

Calculation factor - f - 1.27

Calculation factor - f₁ - 0.98

Calculation factor - f_2A - 1

Calculation factor - f_2B - 1.04

Calculation factor - f_2C - 1.08

Calculation factor - f_2D - 1.14

Calculation factor - f_HC - 1

Preload class A - 455 N/micron

Preload class B - 599 N/micron

Preload class C - 798 N/micron

Preload class D - 1090 N/micron

Mass bearing - 4.35 kg

Tags :  SKF , 190x260x33