View Full Version : Stock Gaui 850Kv Motor Specs
Hurriken
10-03-2007, 05:55 PM
Anyone know the number of poles on the stock Gaui 850 Kv motor?
Motor has H/18/H on top, guessing 8 or 9 based on my Eagle Tree data?
Hurriken
interference
10-04-2007, 02:30 AM
I read somewhere is 10 pole. I put 10 pole in the Eagle tree and it gives sensible numbers.
viper66
10-04-2007, 03:56 AM
# 855501 Brushless Motor ( KV 850 )
KV value 850
Maximum Current 50A
Efficiency 83%
Voltage Range 20 ~ 25 V
Motor Weight 160 g
Motor Diameter 41 mm
Motor Length 43 mm
Motor Shaft Diameter 5.0 x 17 (L) mm
Bearings 10
Hurriken
10-04-2007, 09:06 AM
Thanks interference, I'll give that a try. I initially tried the 18 as stated on the motor, but the Eagle Tree data was only about 1/2 what I expected. I might set up my old airplane tach, set my pitch to 0°, spin up to a known rotor rpm, and see how close it matches the Eagle Tree data at 10 poles.
I read somewhere is 10 pole. I put 10 pole in the Eagle tree and it gives sensible numbers.
Happy|Harry
10-04-2007, 02:50 PM
i concur that it's a 20 magnet 10 pole rotor on the stock gaui motor :)
phil
I'm a bit of confused on my Jeti ESC reading, with 10 poles setting, I got HS of 2100 with 14T on stock 850KV motor. I think this is not possible to get this HS with my current setup.
On testing, I noticed that it was significant reduced in HS and power comapre to the stock ESC.
So I think is either the no. of pole is not 10 or my ESC is not accurate???
I think the stock motor should be 12 pole.
I got max HS of 1873rpm with 100% throttle when I set it 12 poles in the Eagletree.
Happy|Harry
10-18-2007, 02:54 PM
the stock motor is 10 pole, 20 magnets. in fact with a 12 tooth stator a 12 pole rotor wont work, period ;)
phil
My stock setup: 14T/42T 850kv
I have tried 10 pole and what I got was HS more than 2100 which I think is not sensible reading.
Do you think the stock that I have here is not the same as your stock motor?
Happy|Harry
10-22-2007, 02:05 PM
My stock setup: 14T/42T 850kv
I have tried 10 pole and what I got was HS more than 2100 which I think is not sensible reading.
Do you think the stock that I have here is not the same as your stock motor?
it's possible the motors are different but with a 12 tooth stator lrk wound only 10 or 14 pole rotors work ;)
phil