Motor Specs

[rwilabee]

I am trying to figure out if there is a meaning to the numbers on the motors, like 2212, 2814, 2206, 2208, 2216.

 

[bruce365]

Hi there is no absolute standard but, 22 is stator diameter 12, 16, 14, 06, 08 is stator length 2216-11 number of poles and 900kv is how many RPM the motor will do at no load with 1 volt applied to motor. Hope that helps.

Regards - bruce

 

[stitch1615]

Hi there is no absolute standard but, 22 is stator diameter 12, 16, 14, 06, 08 is stator length 2216-11 number of poles and 900kv is how many RPM the motor will do at no load with 1 volt applied to motor. Hope that helps.

Regards - bruce

More importantly, what do you do with those numbers? Primarily the number of poles.
Do more poles indicate more power?
And, does the stator length also affect the wattage?

 

[bruce365]

1. they indicate a slower rpm motor not necessarily more power but can do.
2. yes

 

[stitch1615]

Thanks.

 

[Electro 2]

More importantly, what do you do with those numbers? Primarily the number of poles.
Do more poles indicate more power?
And, does the stator length also affect the wattage?

Key figure is total swept magnetic pole area. A rough estimate figure would be length times diameter for a given motor. Since many manfuacturers "cheat" on the size figures by measuring outside diameter of the case, it's wildly variable. Large diameter, high-pole count motors will be more efficient and run smoother for a given swept area product. For my new 1000mm camera ship, I'm running 4822s (X6) with 32 poles, should be smoooooth with long flight times.

 

[stitch1615]

What size prop for those motors use ?

 

[sixshooterstang]

generally motors with more poles and lower kv use higher voltage with larger props meaning the current (amp) are lower meaning longer flights. for alot of heavy lift craft you'll see 300-650kv motors and props between 10" to 17" usually depending on motor kv, voltage and thrust desired.

 

[Electro 2]

What size prop for those motors use ?

14-15 or so.