What is diametral quotient?

Q.  What is the effect of large diametral quotient on worm and worm wheel?
- Published on 23 Sep 15

a. Strength and rigidity of worm shaft is high
b. Efficiency of worm shaft increases
c. Worm shaft becomes weaker
d. All of the above

ANSWER: Strength and rigidity of worm shaft is high


  • Sravanthi   -Posted on 01 Oct 15
    • Moment of resistance of worm against bending and torsion is determined by diametral quotient. Worm has large diameter if value of diametral quotient is large and hence strength and rigidity of worm gear increases.

    • Efficiency of worm gear pair decreases due to large diametral quotient.

    • Worm shaft becomes weaker if small value of diametral quotient is used.

    • If diametral quotient of small value is used efficiency of worm gear pair increases due to larger lead angle. Diametral quotient between 6 and 15 is used in practice.

Post your comment / Share knowledge

Enter the code shown above:
(Note: If you cannot read the numbers in the above image, reload the page to generate a new one.)