Copy code snippet

Brushless outrunner motor specs

I have a couple brushless motors and being new to this, I wanted to know what the first numbers mean? I have a 2808-660 motor. I assume the 660 means KV, but what does the 2808 mean?

Comments for Brushless outrunner motor specs

Average Rating starstarstarstarstar

Click here to add your own comments

Motor numbers
by: rcdude07

the first set of numbers refers to the motor diameter and motor height. Here are 2 good references:

Brushless motor numbers
by: Anonymous

Unfortunately there are no "standards" in motor numbers so you have to be careful.

Some manufacturers use the outside diameter other use the diameter of the rotor inside.

Just to make it a bit more complex other wise identical motors can have different kVs.

It is much safer to simply treat them as 'model numbers' and use the manufacturers detailed motor specification which should give its physical dimensions, kV, maximum current, the shaft diam etc.

Click here to add your own comments

Join in and write your own page! It's easy to do. How? Simply click here to return to RC Plane Forum.

Let’s Go Flying!

5 Steps for Successful First Flight!

When the RC bug bites, it bites hard!

Control yourself my friend!

Save yourself much time and money by following these five steps to success!


1:Choose the Right Plane

2: Understand the Physics of Flight

3: Learn the Controls!

4: Join a Club

5: Buy a Simulator