tom_chang79

iTrader: (13)

I understand that the turn rating of a brushed motor was based on how many windings of wire was around the armature, but what about brushless?

I see them with turn ratings all the time, but how accurate is using turn rating for brushless? Does a 10.5T brushless really have 10-turn winding (the .5 to denote that it's sensored?)...

wingracer

iTrader: (24)

No a 10.5 does not equal a 10 turn in power. With the latest controllers, 10.5 is close to a 15-17 turn brushed.

tom_chang79

iTrader: (13)

No I don't mean the comparing power. I mean physical wiring internally.

I remember someone telling me that a 10.5T brushless does have a 10 turn winding internally. Was wondering if that was true...

ozvena

iTrader: (7)

You can do 1/2 turn with brushless motors. So there is no reason to doubt that 10.5T dosn't have 10 an 1/2 turns.

wingracer

iTrader: (24)

I believe it actually is 10.5 turns. I could be wrong though.

Also, I believe that .5 part tells you which winding style it is. There are two ways to wire it, delta and Y. One would be a whole number of turns like 10, the other would have a 1/2 turn, hence 10.5. Again, could be wrong. I'm still learning the whole brushless thing myself

NovakTwo

Our sensored, brushless 10.5 motor has 10.5 winds---that's why we selected that designation for our BL motors, early on. The turns are "real", whereas, some other designations are dependent on load, or some other variable. It is what it is.

Robertw321

iTrader: (1)

NovakTwo

Could you explain how you get the .5 wind. I think it confuses people that are familiar with all the winds going back to the comm.

ozvena

iTrader: (7)

They do not need to wrap around and go back to where they originated. They can end on the other end of the motor case.

I suggest that you open one of the motors to see. ;-)

tom_chang79

iTrader: (13)

Thanks for the clarification NovakTwo, I appreciate it... There was two camps on this subject, one who thought that the "turn" rating had to do with comparing the brushless to the brushed during the early days of brushless, when racers were confused with "Kv" rating and how it related to what to put in their vehicles... The other camp was that the turn rating WAS the number of turns the windings are inside the motor...

NovakTwo

Hi Robert, I will have to check this for you; but, I think that it has to do with the basic motor design and number of poles. These motors can be wound, offering exact wind numbers, but it is more difficult; we have never offered these motors in non .5 winds.