What is brushless?

[X-jason adamo]

I was wondering what brushless is and means. :roll:
Thanks

[Tom Fiddler]

Most stock (cheap) electric motors use a set of brushes on a comutator to transfer the batteries power to the motors rotor (spinning part)
This causes alot of wear and electrical noise and the brushes must be replaced when they wear down
A brushless motor is basically a 3 phase motor, where the poles are changed (making the motor turn) by the speed controller
A brushless motor has basically no parts that wear out and will have a higher power output for the same current draw.
This is due to lower drag and electrical losses caused by the brushes

[X-jason adamo]

So Nothing touches the shaft everything is throw the magnetic currents right? :shifty

[Tom Fiddler]

Yes the speed controller does all the work
The 2 bearings in the motor are the only wear parts

[X-jason adamo]

ok
Thanks