About how to add gear contact force

Hello, I use multibody to do gear simulation. I want to add contact force between two gears, but I don't know how to add it. I use the circle to circle force module, but it doesn't work. How can I solve this problem? I want to measure the dynamic characteristics of gears, such as vibration speed or acceleration spectrum. At present, the gear dynamic characteristics of multibody cannot be measured with its own gear constraints.

[Rishabh]

same query