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SKF - Rolling Bearings

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2<br />

Selecting bearing size using the life equations<br />

Diagram 2<br />

Factor a <strong>SKF</strong> for radial roller bearings<br />

50,0<br />

20,0<br />

B<br />

10,0<br />

5,0<br />

k = 4<br />

2,0<br />

1<br />

0,8<br />

1,0<br />

0,6<br />

0,5<br />

0,5<br />

0,4<br />

0,3<br />

0,2<br />

0,2<br />

0,15<br />

0,1<br />

0,1<br />

a <strong>SKF</strong><br />

h c<br />

P u<br />

0,05<br />

0,005 0,01 0,02 0,05<br />

0,1<br />

0,2<br />

0,5<br />

1,0<br />

2,0<br />

5,0<br />

Other<br />

<strong>SKF</strong> standard<br />

bearings<br />

0,005 0,01 0,02 0,05 0,1 0,2 0,5 1,0 2,0<br />

–––<br />

P<br />

h c<br />

P u<br />

–––<br />

P<br />

<strong>SKF</strong> Explorer<br />

bearings<br />

If k > 4, use curve for k = 4.<br />

As the value of h c (P u /P) tends to zero, a <strong>SKF</strong> tends to 0,1 for all values of k.<br />

67

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