ME240: Bearings

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4 Terms

1
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What do bearings do?

  1. Carry loads

  2. Reduce friction

  3. Position moving machine parts while facilitating motion

2
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What load do thrust bearings support only?

Axial

3
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What are the 2 major measures of bearing life?

  1. L = number of revolutions of inner rings until fatigue sign

  2. (L) = number of hours of use at specified standard speed until fatigue sign

4
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What is often applied to determining the lifetime of bearings?

The factor af (>1) which acts as a safety factor because the actual conditions of use are much worse than those of testing