Do you want to change the belt in the machine quickly or quickly?
The speed of the motor is constant, and the larger the wheel on the motor, the faster it moves from the wheel, but the torque decreases
For example, a big tire is going to go a lot farther than a little tire! So the belt wheel must be turning faster than a small pulley!
The motor is the power output, and the bigger the pulley, the farther the line of the motor is going, so the better!
