couplers

[Norwest]

Working on my hobby gear. I was having to get couplers from wobbling. When you get a new motor that has shaft flattened the whole way, that presents a problem. Unless you have a real tight fit, your ok. Now I find that most have .12/- or + leeway which don't cut the mustard! I got a tap and die 3mm set and screws to match and drill 4 or 5 mm from the original screw. This way the coupler will not wobble but you have to check it out. The second screw will help take care of the .12 leeway on flat spot. Correct me if you think i'm wrong, ok! I found that having a round shaft with 1 screw can be had by just notching a big enough slot for the set screw is enough. This way the coupler will be spot on and not wobble, keep fingers crossed! Forgot, I did have to use a pop can and cut real small pieces and lay them flat on motor shaft but that takes some doing and came real close. Got ideas, express them, all ears! I got my coupler from Steve and it is spot on and is a class act, thank you Steve.