I few post back, I said I wanted a specific motor on hobbyking. It was still backorder so I decided I had to order a motor and live with it. I order the Turnigy C5065-350.
Here it is
That motor cost me 30$, so I bought 2. The original Rimfire motor is discontinued and was 99$
The first thing I did was take it appart! I knew that cheap motor like this one had to be inspected. I read that from different reviews on hobbyking that the majority of motor have there magnet falling off (un-gluing).
After seen the above picture , I realise that I would probably need to add some epoxy!
On the left, is the 99$ motor and the right is the 30$ motor. That blue thing is glue, it looks like a epoxy, it is not like that around the entire motor. Only 1/4 of the motor. The 99$ motor has slot so the magnet slide in those slot. I do not have them with the cheap motor. Those slot and glue provide good strength.
On the left is the original motor.
While playing with that motor I realise something amazing! The part with the wire, the stator, can fit perfectly inside the brand new 30$ motor!
This is the stator, on the right you have the old one that I brooke, so there is not wire in it.
This is the old bracket, I will need to machine a new one. I am working on it right now.
The big difference between both motor is the quality of the magnet. (I think) When I remove the stator from the rotor, the 99$ motor offer a big resistance when I try to pull it out. I did not get the same type of resistance with the cheap 30$ motor. It was WAY more easy! I was suprised. The air gap seems to be the exact. (Airgap is the space between the magnet and the stator (coil)) So I guest the magnet are cheaper. I have no tools to measure the magnetization of the magnet. Maybe I could find that at my University… (email sent)
BTW I ordered the real motor I wanted from hobby king! The TGY AerodriveXp 46 SK Series 50-55 580Kv / 1580w.
I am going back to finish up a new motor bracket. Can’t wait to ride the new scooter. I will also modify the scooter: add 1,5 feet to the scooter. More on that later.