Question

An external spur gear with a pitch angle of 20° has a diametral pitch of 3. The spur gear drives an internal gear with 75 teeth to produce a velocity ratio of 1/3. Determine the center distance.

          An external spur gear with a pitch angle of 20° has a diametral pitch of 3. The spur gear drives an internal gear with 75 teeth to produce a velocity ratio of 1/3. Determine the center distance.
        

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University Physics with Modern Physics
University Physics with Modern Physics
Hugh D. Young 14th Edition
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An external spur gear with a pitch angle of 20° has a diametral pitch of 3. The spur gear drives an internal gear with 75 teeth to produce a velocity ratio of 1/3. Determine the center distance.
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Transcript

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00:01 We are given n2 is 500 rpm m is 3 mm t2 is 48 teeth also n3 is equal to 0 .5 multiplied by n2 this will be equals to 250 rpm from the law of gearing t3 divided by t2 will be equals to n2 divided by n3 so from here we will get t3 will be equals to 96 teeth from m is equal to d divided by d m is equal to d2 divided by t so d2 will be equal to 3…
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