Actually, I had forgotten to apply a remote displacement on the driven gear. But now, it is working.

Here are my BCs.

Also, I had to include in weak springs to avoid rigid body motion. 

Now, I am facing another problem. When I am trying to allow full rotation (360) of the cut gears, the solution fails to solve. Let's say, I want 10 revolutions.


I mean after this time.

What can I do?