Numerical - Maximum tangential force on helical gear tooth

Q.  A helical gear transmits power of 2050 W and has helix angle of 25o. If pitch line velocity is 15 m/s then what is the maximum tangential force acting on helical gear tooth? (Assume Ka = 1 & Km = 1.2)
- Published on 23 Sep 15

a. 113.88 N
b. 136 N
c. 164 N
d. None of the above

ANSWER: 164 N

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    Discussion

  • Sravanthi   -Posted on 28 Sep 15
    Given: Ka = 1, Km = 1.2, Ψ = 25o, P = 2050 W, V = 15 m/s

    Formula: Ft max= Ka Km Ft
    But Ft = P/V
    Substituting the values of P & V we get value of tangential force equal to 136.66 N

    Therefore, Ft max = 1 x 1.2 x 136.66
    = 164 N

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