How do I How Can I Make Gear Mechanism With Physics And Rotate Brahviour ?

I am Trying To make Gear Mechanism With Physics But When Physics Is Collision To Second Gear , Its Not Rotating.

Uses

i used Sprite - Physics - Immovable + Rotate Behavior

It is alot easier to use math in expression. My gear example for Ludum Dare 51: https://www.dropbox.com/s/f6a6vchulevej8m/Clock%27O%20Gear.capx?dl=0

Thanx Bro, But its Confusing For Me. How can i Rotate Gear using Another Gear Collision.

Don't use Rotate behavior with Physics.

dropbox.com/s/14f7br8kf5v9k1r/PhysicsGears.c3p

yes that is work, thanx bro