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Bearing 7217 ACD/HCP4A (SKF)

Angular contact ball bearings, super-precision 7217 ACD/HCP4A

Bearing number : 7217 ACD/HCP4A

Size (mm) : 85x150x28

Brand : SKF

Bore Diameter (mm) : 85

Outer Diameter (mm) : 150

Width (mm) : 28

Bearing dimensions and specification in SKF catalogue:

d - 85 mm

D - 150 mm

B - 28 mm

d₁ - 106.5 mm

d₂ - 106.5 mm

D₁ - 129.5 mm

r_1,2 - min. - 2 mm

r_3,4 - min. - 1 mm

a - 41.7 mm

d_a - min. - 96 mm

d_b - min. - 96 mm

D_a - max. - 139 mm

D_b - max. - 144.4 mm

r_a - max. - 2 mm

r_b - max. - 1 mm

d_n - 111.5 mm

Basic dynamic load rating - C - 95.6 kN

Basic static load rating - C₀ - 85 kN

Fatigue load limit - P_u - 3.4 kN

Limiting speed for grease lubrication - 9500 r/min

Limiting speed for oil lubrication - 16000 mm/min

Ball - D_w - 19.05 mm

Ball - z - 17

G_ref - 21.822 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 - 600 N

Preload class B - G_B - 1200 N

Preload class C - G_C - 2400 N

Preload class D - G_D - 4800 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 - 1.03

Calculation factor - f_2D - 1.06

Calculation factor - f_HC - 1.01

Preload class A - 278 N/micron

Preload class B - 361 N/micron

Preload class C - 477 N/micron

Preload class D - 642 N/micron

Mass bearing - 1.567 kg

Tags :  SKF , 85x150x28