Looking at this for a small quadcopter.
Nice to see the shaft can be replaced. Would like to know what length was used so I can order from HK with the motors.
Bigger question is if the mounting base is removable. The base is too large for the arms but perhaps the motor can be mounted directly.
I need to replace the shaft with something a few mm longer. I've taken the motor apart with no difficulty, but... how do I safely remove the shaft from the rotor?
Do I just support the hub well, and tap it out with a small punch?
My application is geared, so normally, I would need to support both ends of the shaft (maybe a 9mm ID bearing over the prop saver hub.)
But this little gem is so beautifully narrow that I may be able to skip the bell end entirely if I can extend a shaft out the mount side...
Until I get my gear train built, I've been benching it mounted to a chunk of 2x6 framing lumber* with a 2s20c Turnigy Lipo and 8x4 wood IC prop, it screams and lifts the chunk of wood menacingly. Very impressive little motor!
Hi. I have just received this motor but there is a grinding sound on it. I couldn't stop the sound although I lubricated the bearings and tightened the screws. Here is a short video:
I opened the motor, removed the bearings. But I realized that I don't have the same bearings and I bought them. I hope I can solve the problem in this way. But I think the problem is caused from the gap between the magnets and the stator.
had a simmilar problem it is caused by to much current in the motor on startup the way i solved the problem was tochange startup mode on the speed control to soft start and all problems go away good little motor!!!!
Can anyone really comment on the comparison with the 2402. Is this one really that much more powerful. ?
I have the 2402 and converted it to fit the GWS RD props by installing a longer 3mm shaft. Gets quite hot so you cant run around WOT. Think this may be a better choice given its lower Kv
It looks like there are several ways to mount a propeller on this motor:
1). Use the built in prop saver - however I need to mount a spinner and I have found prop savers are unsuitable.
2). Use a prop adapter - though there is no prop shaft to mount this.
3). If the built-in prop adapter internal bore is threaded, could use a bolt?
4). If the grub screws for the built-in prop adapter go into the bore, could secure a suitable shaft?
Be carefull, GWS RD props will not fit, you have to use GWS DD props, or an adapter.
Motor weight is 18.4g with bullet connectors
Results with GWS DD 8040 : Voltage : 7.42V 7.1A static thrust : 265g
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Very good motor for 3D indoor. 250gplus static thrust on a GWS 8040.
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Ordered two of these,18 gram on the scale for each and they work well for 6-6.5oz 3d planes. Smooth power and come with a adapter if you prefer slow fly props. Im flying the hk2403 in a 6.5oz plane with a 2s 500 20c pack. Copy and paste link in your browser to see www.link
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Very nice motor. Using it in my indoor plane. Smooth running, sweet sound. 8x4.3 propeller. Recommended.