Understanding Brushless Motor numbers

[Bluebird]

Hi Folks Just sitting here in the wet Canadian north contemplating brushless motor numbers. I understand that the KV rating means max. RPM per volt available to an unloaded motor.
I also understand that the higher the amperage the more power she will be putting out. Amperage x volts = power in Watts.
If I see motor described as 3648-770KV how do I interpret this? Could someone help?
Thanks!

[WintrSol]

Re: Understanding Brushless Motor numbers

There is no hard-and-fast rule, as the numbers can mean different things. The 36 can represent diameter, either of the whole motor, or just the stator, and the 48 can mean the length of the motor less the shaft, the length of the moving outer casing, or the length of the stator. Basically, you have to consult a data sheet for that manufacturer, if you can find one.

[Bluebird]

Re: Understanding Brushless Motor numbers

Ok, wow, so its not necessarily a universal numbering system then! If I really want to know I have to find out how the manufacturer likes to number their motors.
Thanks for the info. WintrSol

[Rocketeer]

Re: Understanding Brushless Motor numbers

Greetings Bluebird,

WintrSol pretty much nailed it in his explaination.
However, FYI, pictures as they say are worth, well, a bunch of words.
Check out this link and short video.

http://www.youtube.com/watch?v=uLutMoh4Ttg

Clear Skies

Bill L.
in Okla.

[Bluebird]

Re: Understanding Brushless Motor numbers

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Hello Rocketeer Thanks very much for that video, it explains things =
very well and adds nicely to what WintrSol had told me. Really =
appreciate it.

I encourage anyone who is not up to speed on motor numbering to watch =
the video sent to me by Rocketeer in the e mail below.

Happy Flying Bluebird

On Oct 14, 2014, at 8:41 PM, Rocketeer [via Motion RC Forum] =
<ml-node+s1075610n4771h83@n5.nabble.com> wrote:

> Greetings Bluebird,=20
>=20
> WintrSol pretty much nailed it in his explaination.=20
> However, FYI, pictures as they say are worth, well, a bunch of words.=20=

> Check out this link and short video.=20
>=20
> http://www.youtube.com/watch?v=3DuLutMoh4Ttg
>=20
> Clear Skies=20
>=20
> Bill L.=20
> in Okla.=20
>=20
> If you reply to this email, your message will be added to the =
discussion below:
> =
http://motion-rc-forum.1075610.n5.nabble.com/Understanding-Brushless-Motor=
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