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Bearing S7210 CD/P4A (SKF)

Angular contact ball bearings, super-precision S7210 CD/P4A

Bearing number : S7210 CD/P4A

Size (mm) : 50x90x20

Brand : SKF

Bore Diameter (mm) : 50

Outer Diameter (mm) : 90

Width (mm) : 20

Bearing dimensions and specification in SKF catalogue:

d - 50 mm

D - 90 mm

B - 20 mm

d₁ - 62.3 mm

d₂ - 62.3 mm

D₂ - 80.7 mm

r_1,2 - min. - 1.1 mm

r_3,4 - min. - 0.6 mm

a - 19.4 mm

d_a - min. - 57 mm

d_a - max. - 61.5 mm

d_b - min. - 57 mm

d_b - max. - 61.5 mm

D_a - max. - 83 mm

D_b - max. - 85.8 mm

r_a - max. - 1 mm

r_b - max. - 0.6 mm

Basic dynamic load rating - C - 44.9 kN

Basic static load rating - C₀ - 34 kN

Fatigue load limit - P_u - 1.4 kN

Limiting speed for grease lubrication - 16000 r/min

Ball - D_w - 12.7 mm

Ball - z - 15

Calculation factor - f₀ - 14.5

Preload class A - G_A - 170 N

Preload class B - G_B - 340 N

Preload class C - G_C - 680 N

Preload class D - G_D - 1360 N

Calculation factor - f - 1.08

Calculation factor - f₁ - 1

Calculation factor - f_2A - 1

Calculation factor - f_2B - 1.01

Calculation factor - f_2C - 1.03

Calculation factor - f_2D - 1.05

Calculation factor - f_HC - 1

Preload class A - 65 N/micron

Preload class B - 88 N/micron

Preload class C - 124 N/micron

Preload class D - 178 N/micron

Mass bearing - 0.469 kg

Tags :  SKF , 50x90x20