I always hear that a brushless motor is better than a brush motor. What is the difference between the two?
A conventional brush motor has carbon brushes that transmit the electricity onto the rotor to make it turn. The carbon brushes wear down over time and they need to be replaced. The brushes also produce carbon dust, that needs to be cleaned out of the motor. Although it is not an expensive repair, many clinicians don’t want to bother to send a motor in for maintenance. A brushless motor works without carbon brushes. It uses a completely different electric technology based on magnets.