DC motor for your build

  While all the devices here could broadly be considered DC motors, what this term generally refers to is an unguided motor that uses a rotating magnetic field between the inner rotating armature and an outer stator section that surrounds it. The magnetic field is varied mechanically by a commutator ring to attract the inside in a correct sequence and create rotation. While unguided, the motor’s speed can be varied by changing the voltage applied to it, or mechanical gear reduction can be used to reduce speed and increase torque. If feedback is needed, external sensors can be applied to guide the process.