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Bearing 71938 CD/HCP4A (SKF)

Angular contact ball bearings, super-precision 71938 CD/HCP4A

Bearing number : 71938 CD/HCP4A

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

r_1,2 - min. - 2 mm

r_3,4 - min. - 1 mm

a - 46.8 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 - 172 kN

Basic static load rating - C₀ - 220 kN

Fatigue load limit - P_u - 6.2 kN

Limiting speed for grease lubrication - 6300 r/min

Limiting speed for oil lubrication - 9000 mm/min

Ball - D_w - 22.225 mm

Ball - z - 28

G_ref - 57 cm3

Calculation factor - f₀ - 16.4

Preload class A - G_A - 640 N

Preload class B - G_B - 1280 N

Preload class C - G_C - 2560 N

Preload class D - G_D - 5120 N

Calculation factor - f - 1.27

Calculation factor - f₁ - 1

Calculation factor - f_2A - 1

Calculation factor - f_2B - 1.07

Calculation factor - f_2C - 1.12

Calculation factor - f_2D - 1.18

Calculation factor - f_HC - 1.04

Preload class A - 210 N/micron

Preload class B - 288 N/micron

Preload class C - 408 N/micron

Preload class D - 597 N/micron

Mass bearing - 3.636 kg

Tags :  SKF , 190x260x33