What is destructive pitting?

Q.  Which of the following gear tooth failures is/are induced when maximum Hertz contact stress on gear tooth surface exceeds surface endurance strength of tooth?
- Published on 19 Oct 15

a. Abrasive strength
b. Corrosive wear
c. Destructive pitting
d. Galling

ANSWER: Destructive pitting

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    Discussion

  • kidanemariam   -Posted on 10 May 18
    thanks very helpful
  • Neeraj kumar Patel   -Posted on 04 Sep 16
    good tips
  • ATUL BAN   -Posted on 12 Aug 16
    very very excellent
  • Gangadhar    -Posted on 22 Jul 16
    excellent.
  • Kishore Kumar Singh   -Posted on 18 Jul 16
    excellent explanation
  • SAINATH REDDY C    -Posted on 06 Jun 16
    Is it possible
  • Sravanthi   -Posted on 25 Sep 15
    Different types of gear tooth failures occur due to bending and wear. Destructing pitting is a type of pitting failure which is caused due to repetitive contact stresses. If sum of static and dynamic loads on gear tooth exceed wear strength destructive pitting starts on tooth surface. It begins as a micro-crack and develops into a big pit on surface.
    Galling is lubrication failure and corrosion wear occurs due to chemical action.

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