BRUSHLESS DC MOTORS The Premotec Brushless DC motors use an external rotor and an iron core stator to minimize cogging and to maximize the output torque. Supplied in an extremely compact package, Premotec brushless motors are available with or without integrated electronics. The use of high quality components ensures a motor life in excess of 20.000 hours. The torque for these motors ranges from 2.5 to 210 mNm. The speeds range from 1000 to 10.000 rpm. Below is a list of our brushless DC motor program.