Motor Sizes

Finding a motor that fits the mount you are using is important, and the size of a motor plays an important role in the amount of power it can produce. Motors are generally seen listed with a number in front of them, the number is usually 4 digits long, some common examples are 6355, 6374 and 5065. This number represents the diameter, and length of the motor. The first two digits represent the diameter in mm, and the second two represent the lenght. For example, a 6374 motor has a diameter of 63mm and a length of 74mm.

Larger motors can produce more power because they can withstand more current without heating up.