Does a 6T only handle half the watts of a 3T?

[Hummina Shadeeba]

At the same phase/motor current, the 6T produce half the of torque as the 3T.
The 6T will be running at 2X the rpm of the 3T while producing that torque
Mechanical power=torque X rpm.
6T: 1/2(torque) X 2(rpm) = 3T: torque X rpm=same mechanical power.

Except flip it and the 3T does half the torque of the 6T with same current …

More turns or wraps of wire makes the stronger electromagnet

 

[AdR]

You are right@Humminia-got my torque to turn ratio reversed

 

[thepronghorn]

Power potential is exactly the same but the 6T gets there at twice the voltage and half the amps.

This is the correct answer. The motor is capable of the same speed, torque, and power no matter which way you wind it. The only thing that changes is the voltage and current combination needed to hit that speed/torque/power.

So many threads have covered this.

The only thing that breaks this is winding transitions as @larsb described here: Same debate again, motor windings!. And when you consider winding transition losses, slower wound motors are better.

 

[RaymondReed]

At the same phase/motor current, the 6T produce half the of torque as the 3T.
The 6T will be running at 2X the rpm of the 3T while producing that torque
Mechanical power=torque X rpm.
6T: 1/2(torque) X 2(rpm) = 3T: torque X rpm=same mechanical power.

That's right. For the same current, a 6T motor will make half the torque at twice the speed of a 3T, so power output is the same. The 6T will be more efficient because of the lower current though.

 

[Hummina Shadeeba]

I think worth mentioning while a motor CAN put out the same torque and speed and subsequent power, regardless of winding.. there’s a hard limit on the torque it can put out but not the speed, so adding more speed with either more voltage or a faster winding, can hugely increase the power possible.
With a hub motor you can only spin faster putting it in a smaller wheel but a mid drive using that same hub motor for example and a gear/speed reduction of 5:1 and that same motor is now capable of producing 5x the peak power.

 

[Hummina Shadeeba]

That's right. For the same current, a 6T motor will make half the torque at twice the speed of a 3T

But flip it and the 3T is half the torque for same current.

 

[Hummina Shadeeba]

The 6T will be more efficient because of the lower current though.

It’s the same efficiency (I2R) and the double speed (3t) has half the resistance of the (6t), so double the amps with the 3T to get same torque but those amps are creating half the heat of the 6T

 

[Hummina Shadeeba]

The losses in the transits, which will increase as a percentage of the total wire with fewer turns, would depend on the motor size and shape.

 

[99zip99]

You need a higher quality battery with the 3T. As able to produce more amps meaning more watts. Because in real life we all like to twist the throttle now and then.
For its full potential. You're going to have more demand on the battery for longer as it the 3T takes more wattage to saturate. And you're going to hell a lot faster.
JohnCR that he would like a 3T with a 48 volt battery that can deliver a lot of amps for emoto bike. I guess you only have so much battery room