Would this motor work for an ebike build?

everest

10 mW
Joined
May 24, 2009
Messages
26
I found this

XYH80-100-A 180Kv Brushless Outrunner
http://www.giantcod.co.uk/xyh80100a-180kv-brushless-outrunner-7055-p-404968.html

which is an RC motor, price seems good, i presume it would need a reduction gearbox and suitable controller???????

or is a just matter of plug and play (pray!!) :)

Cheers,
 
I am not expert, but that motor doing over 8000 rpm is a lil to much.

Are you going to make a belt drive how do you intend on using it?

check out for plug and play stuff.

ebikes.ca
goldenmotors.com
emtb.com.au
cloudelectric
www.cyclone-tw.com
 
salty9 said:
Most of these RC motors depend on air flow from a prop for cooling. Might be a problem on a bike.

That's why I'm surprised the guys running them don't put centrifugal fan blades on the spoked end of the can on their outrunners. The RC guys use them, and it has the potential to get lots of air flowing through the motor. I guess they're already noisy enough though. :mrgreen:
 
thanks for all your replies!!!!!

http://endless-sphere.com/forums/viewtopic.php?f=6&t=5919

seems to outline adventures with RC type motors. They are designed for low weight , low torque applications.

Bikes are too heavy!!
 
On an RC heli application, I designed and had Shapeways fabricate a centrifugal fan for the outrunner motor. It isn't terribly difficult to do if you have a 3D cad program, it's actually a fun project to get your toes wet with mechanical design. I'm guessing it would cost about $30 for Shapeways to make the fan for this motor, mine was about $12 for a 45mm dia motor. My fan made about a 10 F difference at the windings after my typical 6 minute flight, from ~170 to ~160 F. It wasn't worth the effort for my application, but on an ebike, which has continuous duty rather than my 6 minutes, the forced air cooling will probably help a lot. I think air cooling will work better if there is a good gap between windings on the stators, if that area is crammed full of copper then the air has a harder time pulling the heat out of the windings.
 
Hornet dave said:
On an RC heli application, I designed and had Shapeways fabricate a centrifugal fan for the outrunner motor. It isn't terribly difficult to do if you have a 3D cad program, it's actually a fun project to get your toes wet with mechanical design. I'm guessing it would cost about $30 for Shapeways to make the fan for this motor, mine was about $12 for a 45mm dia motor. My fan made about a 10 F difference at the windings after my typical 6 minute flight, from ~170 to ~160 F. It wasn't worth the effort for my application, but on an ebike, which has continuous duty rather than my 6 minutes, the forced air cooling will probably help a lot. I think air cooling will work better if there is a good gap between windings on the stators, if that area is crammed full of copper then the air has a harder time pulling the heat out of the windings.

interesting, i wonder if you take the further and use some PC water cooling tech to get that down further :) presumable you could use a water jacket to dissipate heat too :) , as long you kept the water out of the motor! :)
 
Hornet dave said:
On an RC heli application, I designed and had Shapeways fabricate a centrifugal fan for the outrunner motor. It isn't terribly difficult to do if you have a 3D cad program, it's actually a fun project to get your toes wet with mechanical design. I'm guessing it would cost about $30 for Shapeways to make the fan for this motor, mine was about $12 for a 45mm dia motor. My fan made about a 10 F difference at the windings after my typical 6 minute flight, from ~170 to ~160 F. It wasn't worth the effort for my application, but on an ebike, which has continuous duty rather than my 6 minutes, the forced air cooling will probably help a lot. I think air cooling will work better if there is a good gap between windings on the stators, if that area is crammed full of copper then the air has a harder time pulling the heat out of the windings.

Do you have any pics of the fan?
 
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