Comparing Miniature DC Motors and Gearboxes

Unlike their fractional and integral horsepower cousins that can be “Rated” using norms by such organizations as the National Electrical Manufacturers Association (NEMA) or the International Electrotechnical Commission (IEC) there are no such standards for rating small fractional and sub-fractional horsepower dc and stepper motors. Each Manufacturer must decide their own rating system. ■