Friday, April 30, 2021

Mechanical Engineering Subject | Question in description | Question 7

A pinion having 20 involute teeth of module 6 mm rotates at 200 rpm and transmits 2hp to a gear wheel having 50 teeth. The addendum on both the wheels is 0.25 of the circular pitch. The angle of obliquity is 20°.

Find (a) the length of path of approach, (b) the length of arc of approach and (c) the normal force between the teeth at an instant where there is only one pair of teeth in contact.
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