Bearings Online Catalogue

Home > Bearings Catalogue Online > Angular Contact Ball Bearings

Bearing 7218 CD/P4A (SKF)

Angular contact ball bearings, super-precision 7218 CD/P4A

Bearing number : 7218 CD/P4A

Size (mm) : 90x160x30

Brand : SKF

Bore Diameter (mm) : 90

Outer Diameter (mm) : 160

Width (mm) : 30

Bearing dimensions and specification in SKF catalogue:

d - 90 mm

D - 160 mm

B - 30 mm

d₁ - 111.6 mm

d₂ - 111.6 mm

D₁ - 138.4 mm

r_1,2 - min. - 2 mm

r_3,4 - min. - 1 mm

a - 31.9 mm

d_a - min. - 101 mm

d_b - min. - 101 mm

D_a - max. - 149 mm

D_b - max. - 154.4 mm

r_a - max. - 2 mm

r_b - max. - 1 mm

d_n - 117.5 mm

Basic dynamic load rating - C - 127 kN

Basic static load rating - C₀ - 112 kN

Fatigue load limit - P_u - 4.2 kN

Limiting speed for grease lubrication - 8500 r/min

Limiting speed for oil lubrication - 14000 mm/min

Ball - D_w - 22.225 mm

Ball - z - 16

G_ref - 27.765 cm3

Calculation factor - f₀ - 14.6

Preload class A - G_A - 480 N

Preload class B - G_B - 960 N

Preload class C - G_C - 1920 N

Preload class D - G_D - 3840 N

Calculation factor - f - 1.09

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 - 114 N/micron

Preload class B - 154 N/micron

Preload class C - 215 N/micron

Preload class D - 314 N/micron

Mass bearing - 2.266 kg

Tags :  SKF , 90x160x30