[Paul Copioli]

Let me tell you about that "green Loctite" Andy talked about. It is Loctite 680 and is meant to carry significant loads. FANUC Robotics uses it on some of our paint robot's gear to shaft interfaces. If applied properly, it is meant to be permanent and is awesome. You can, however, remove the pieces by applying heat to the components (a heat gun works best). We have used Loctite 680 on our robot in the past where we just couldn't get a key or some other locking mechanism.

-Paul