I am not so sure this is possible, but I have a small 8rpm motor that I would like to attach to a piece of wood. The trick is I want to attach is so the wood is hanging under the motor, so I need a way to permanently attach it so that it will still spin, but not drop a 3lb-ish load. I don't know much about all this, so if you need anymore information from me about the parts just ask. Thanks!
EDIT: The motor is a small dc motor. It's about an inch and a half long cylinder. The spinning part is on the end of the cylinder, a bit off center, and is shaped like a partial cylinder. I hope this explaination makes sense.