+1 vote
in Machine Kinematics by (38.0k points)
When two spur gears having involute profiles on their teeth engage, the line of action is tangential to the

(a) pitch circles

(b) dedendum circles

(c) addendum circles

(d) base circles

The question was posed to me in a national level competition.

This intriguing question comes from Law of Gearing in division Toothed Gearing & Gear Trains of Machine Kinematics

1 Answer

0 votes
by (92.2k points)
Right choice is (a) pitch circles

Easiest explanation: None.

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