Abstract: An inductive linear electric dc motor including a stator and a slidable or rollable rotor. The stator has a ferromagnetic strip with spaced poles dispersed along the strip in a checkerboard pattern. The rotor has a ferromagnetic housing made up of an upper yoke and side yokes, concentrators disposed within the ferromagnetic housing such that of each of the concentrators has a segment which segments together form an armature, and different arrangements of permanent magnets that optimize the uniformity of the magnetic field through an armature winding wound about the armature.