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Bearing S7210 ACD/P4A (SKF)

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

Bearing number : S7210 ACD/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 - 26.4 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 - 42.3 kN

Basic static load rating - C₀ - 32.5 kN

Fatigue load limit - P_u - 1.4 kN

Limiting speed for grease lubrication - 14000 r/min

Ball - D_w - 12.7 mm

Ball - z - 15

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 - 265 N

Preload class B - G_B - 530 N

Preload class C - G_C - 1060 N

Preload class D - G_D - 2120 N

Calculation factor - f - 1.08

Calculation factor - f₁ - 0.99

Calculation factor - f_2A - 1

Calculation factor - f_2B - 1.01

Calculation factor - f_2C - 1.02

Calculation factor - f_2D - 1.05

Calculation factor - f_HC - 1

Preload class A - 154 N/micron

Preload class B - 201 N/micron

Preload class C - 266 N/micron

Preload class D - 359 N/micron

Mass bearing - 0.469 kg

Tags :  SKF , 50x90x20