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In full depth 14^0 involute system, the smallest number of teeth in a pinion which meshes with rack without interference is

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in Machine Kinematics by (38.0k points)
In full depth 14^0 involute system, the smallest number of teeth in a pinion which meshes with rack without interference is

(a) 12

(b) 16

(c) 25

(d) 32

This question was addressed to me in an interview for internship.

Question is from Comparison Between Involute and Cycloidal Gears in section Toothed Gearing & Gear Trains of Machine Kinematics

1 Answer

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by (106k points)
Correct option is (d) 32

The explanation is: The minimum number of teeth on the pinion in order to avoid interference for 14.5^0 full depth involute are 32 and for 20^0 full depth involute teeth are 18.

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