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Question

Give the reason for the following: Steel axles of machines are made to run in brass sockets or bearings.


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Solution

  1. The friction taking place in bearings is rolling friction.
  2. The rolling friction is always less than other types of friction.
  3. The friction is the main reason for the wear and tear in machines.
  4. To minimize the wear and tear due to friction bearings are used.

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