Teflon is used for bearings because of

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BPSC AE Paper 6 (Mechanical) 25th March 2022 Official Paper
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  1. low coefficient of friction
  2. better heat dissipation
  3. smaller space consideration
  4. All of the above

Answer (Detailed Solution Below)

Option 1 : low coefficient of friction
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Detailed Solution

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Explanation:

Teflon is obtained by addition polymerization technique from tetrafluoroethylene (C2F4)

It is used for

  • bearing bushes
  • chemical pipes
  • Gaskets for IC engine
  • Coating in non-stick look ware

The most popular plastic bearing material is Teflon. It has following advantages:

  • Teflon has low coefficient of friction.
  • It can be used at higher temperatures up to 300° C.
  • It is dimensionally stable because it does not absorb moisture.
  • It is chemically inert.
  • Teflon is self lubricating.

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