Brushed vs Brushless Motors

Brushed vs Brushless Motors

The requirement for DC motors differs from one application to the other, as one application may require more torque and reduce speed while another may require more speed and reduced torque, thus DC motors are sometimes classified by sales folks based on this.
read the full tutorial on motors: 

https://circuitdigest.com/article/brushed-vs-brushlless-motor-operation-construction-applications