Sports powerchair

[jimbo809]

Looking for 4 pole motors 24 v 1000w 7000 rpm gearbox wheels 3 x4 who supplies this to buy new

[Burgerman]

Wheelchair manufacturers and robotics suppliers, etc. Mostly the manufacturers only sell in large batches to a specific pattern windings, cables, brake voltage and type, gear ratio etc to whatever business they are supplying.

So you cant usually buy direct from say linix, electrocraft, AMT, EMD etc. So you have to look at what you can buy.

As far as the 1000w thing is concerned that isnt a relevant measurement. The measurement you want is impedance. A decent 4 pole has 35 to 40mOhm impedance. This means it draws a high current at a small pulsewidth limited only by the controller you use.

So the 350w motors on my chairs for e.g are nothing of the sort. They will run at a continual 350w efficiently without melting. But when I set off and accelerate hard they can easily draw 100 to 120A limited only by the 120A rnet controller. So that is 120A x 24V = 2880 Watts... Each. The watt limit is determined by the max voltage and the max amps they are allowed to pull as long as impedance is low enough to pull that amount of amps. And they all are.

Most 4 pole motors, stalled, with no controller limiting that current to a safe level will draw at least 300A each and burn out. So rating motor "power" by watts is meaningless. Its easily possible that a low impedance 300 watt motor gives more power at a given voltage than a 1000 watt motor.

[slomobile]

These
https://www.ampflow.com/motors/highPerf ... /fourInch/
and these
https://teamwhyachi.com/product/m3r2-do ... r-gearbox/
and these
https://www.ampflow.com/controllers/vex/
and these
https://dwtracing.com/