CIM Motor Direct Drive or Supporting Axle

[asid61]

Originally Posted by Monochron

Yeah, assuming the set screw is the right size to fit snugly in the keyway, it isn't quite as bad. In my experience the set screw was slightly too small and the walls of the keyway beat it up a bit.
Either way, even red locktite couldn't keep that thing from slowly backing out after an hour or two, and I think his application would require something long lasting. I'm thinking that an ungeared CIM like he is planning would make this problem much worse, but that's purely anecdotal.

Ours is slightly too large and ends up sitting on top of the keyway, actually. That combined with a soft steel shaft might account for the good seating, not to mention the accumulated grime holding it in.