Lever analysis ( Contact /Contour condition )

[Emilio9245]

Hi,

I have some doubt about the best way to simulate a lever, which would be the best contourn condition for the lever when i simulate with friction contact instead of bonded ?
When i consider the contact as bonded i dont have to add additional constrain the the lever, but if i change to frinction conctact the model get instable, if someone knows a way it would be great !

Thanks in advance !