Numerical - Load stress factor, given BHN

Q.  What is the load stress factor for cast iron gear pair if BHN = 300?
- Published on 19 Oct 15

a. 1.89 N/mm2
b. 1.62 N/mm2
c. 1.44 N/mm2
d. 1.413 N/mm2

ANSWER: 1.89 N/mm2

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    Discussion

  • Krishna Murthy G   -Posted on 27 Mar 21
    Mam why should we need to take 0.21 in the formula
  • Padmanaban   -Posted on 09 Jul 20
    I am more interested in learning the basics of the mechanical engineering. What to do get myself adverse on the same. And maximum different related fields also
  • Padmanaban   -Posted on 09 Jul 20
    I am more interested in learning the basics of the mechanical engineering. What to do get myself adverse on the same. And maximum different related fields also
  • RAJA   -Posted on 30 Jan 17
    Thank u very much Sravnthi.....
  • Sravanthi   -Posted on 25 Sep 15
    Load stress factor for cast iron pinion and gear is given by,
    K = 0.21 [BHN / 100]2

    Therefore, substituting the value of BHN = 300 we get,

    K = 1.89 N/mm2

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