Motor bell housing swap?

K

kevino

Active Member
Hello,

I recently had a motor burn out (smoked) from a bad esc. I replaced the esc with a spare, however the only spare motor I have is for the opposite direction that I need (shaft thread direction). Since I'll be waiting a while for the replacement to arrive, I was wondering your thoughts on swapping out the bell housing from the burnt motor to the new motor? My thought is that while the windings/insulation on the burnt motor are definitely unusable, the housing/shaft/magnets from it might still be good? That way I could get by with the correct thread direction til the replacement arrives. Thoughts? Bad idea? I thought about just using the opposite hand motor and wrenching down real hard on the prop bolt but I wonder if it will hold. If it matters, these are armattan oomph velvet motors
 
Just use the spare. Just tighten it down as you normally would, the nut won't come loose. In fact, not very many motors are available inn CCW any more.
 
Yeah I suppose I could just do some punch outs and see if the prop comes loose for now. I might still try swapping the bell housing at some point just to experiment and see if it works....just to tinker around
 
kevino said:
lol ok, thanks
Click to expand...
Not to discourage the tinkering but I believe the spacing between the magnets and the coils has to be extremely tight and things need to be pretty well balanced or else you run into issues/losses but once it's broken hardware anyway it doesn't really hurt to try.
 
To follow up, after replacing the burnt out CCW motor with a spare CW motor I had I've def had problems keeping the prop on. The first time it came off was from a crash, not a bad one I just hit a tree branch but the small impact was enough to unloosen the prop, so lost the prop, prop washer and bolt. The 2nd time the prop just came loose on its own in the air and crashed. So when using armattan motors it looks like its pretty important to have the correct orientation motors/shaft threads. I imagine the reason is that the armattan motors don't use nuts that tighten on an outside-threaded shaft, they use a small M3 bolt threaded into an inside threaded shaft. With that reduced surface area/thread friction I guess its just not enough to hold it on.
 
OK, didn't notice you were using Oomph's. Great performing motors, but I don't like them for that very reason. Might help if you used some Loctite
 
yeah I'm not liking them right now for the same reason lol. I do have a replacement on order I'll just be waiting for it. I could use Loctite but I don't like the idea of using it for props since I have to swap them often.
 
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