Abstract: An automatic armature production line comprising an assembling machine by which the component parts of an armature core assembly are assembled, a bank of armature winding machines by which the armatures are wound, a welding machine by which the wire leads connecting successively wound coils are physically and electrically connected to the terminals of the commutator, a testing station at which the completed armatures are tested for electrical continuity, and a transfer system by which the armature core assemblies and then the wound armatures are quickly moved from one work station to another, the transfer system comprising a plurality of identical cylindrical carriers that have axial cavities into which the armature core assemblies and the wound armatures are inserted and which roll along downwardly inclined tracks that lead from station to station, and which carriers have a flat surface spaced from their axes of rotation to coact with flat surfaced guides at the different work stations to hold the carriers i