# The minimum number of teeth on the pinion which will mesh with any gear without interference for 20^0 full depth involute teeth will be

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The minimum number of teeth on the pinion which will mesh with any gear without interference for 20^0 full depth involute teeth will be

(a) 12

(b) 14

(c) 18

(d) 24

I had been asked this question in semester exam.

Enquiry is from Minimum Number of Teeth on a Pinion for Involute Rack in Order to Avoid Interference in section Toothed Gearing & Gear Trains of Machine Kinematics

## 1 Answer

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Correct option is (c) 18

Easiest explanation: 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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