When is gear designed for bending?

Q.  If (σb  x Y)pinion > ( σb  x Y)gear then ________ is designed for bending.
- Published on 19 Oct 15

a. pinion
b. gear
c. both a. and b.
d. none of the above

ANSWER: gear

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    Discussion

  • Krishna Murthy G   -Posted on 27 Mar 21
    Nice explanation mam thank you so much
  • Twabona Dennis   -Posted on 14 Apr 18
    This is interesting
  • Sravanthi   -Posted on 25 Sep 15
    According to Lewis equation, beam strength of gear and pinion is calculated using the formula,
    Fb = σb b mY
    Face width and module for pinion and gear are same, so product of σb & Y is considered to decide the weaker member between pinion and gear. If pinion and gear are made of same material pinion is always weaker as Lewis factor for pinion is less than gear

    If (σb x Y)pinion > ( σb x Y)gear, gear is weaker in bending. Hence gear is designed for bending

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