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Problems with spur gears and max addendum

  1. Mar 10, 2012 #1
    1. The problem statement, all variables and given/known data
    Consider a gear set with the following attributes:


    • A pinion base radius of 11mm
    • A centre distance of 73mm
    • A pressure angle of 24 degrees
    • A module of 5.8mm
    What is the maximum addendum radius (mm) that the pinion can have to avoid interference?



    2. Relevant equations

    ramax=√rb2+c2*sin(θ)2

    ramax= maximum noninterfering addendum circle radius of pinion gear
    rb= base circle radius of the same member
    c= center distance
    θ=pressure angle


    3. The attempt at a solution
    ramax=√rb2+c2*sin(θ)2
    ramax=√0.0112+0.0732*sin(24)2
    ramax= 0.0316mm

    So that is the answer that I got but I was not sure if you need to use the module for anything or whether it is just extra info
    cheers
    Jack
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
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