The motor is the workhorse of any treadmill. Usually located at the bow of the treadmill’s base, the motor can supply between 1.5 and 3.0 horsepower. Most treadmills use direct-current (DC) motors because they’re much quieter. Alternating current (AC) motors can generate more power but work noisily.
Many treadmill buyers make the mistake of not taking their weight and frequency of use into account. A small motor for a heavyweight, frequent user will definitely put stress on the motor and belt, requiring more frequent repairs. Overworking the motor can result in a burnout, warranting a replacement. Continue reading