for the flux supply by the magnets 94n and 94s and produce in the air gap between the poles a working flux field of high flux density due to the large coercive force of the magnets a solid non magnetic cylindrical armature 96 is disposed between the magnets 94n and 94s within the confines thereof and in the air gap the armature 96 may by made of any non magnetic material but it is preferably made of a light weight molded plastic insulating material with the rotor shaft 74 molded integral with the armature the rotor shaft 74 is journaled in suitable bearings located in the end plates 100 and 102 along with a brush plate not shown in one end plate thereof the armature is formed with longitudinal peripherally shaped slots not shown in which are located windings 104 connected in a conventional manner to commutators not shown brushes not shown are also provided to bear against the commutators and provide current conduction to the armature windings from an external voltage source in a manner well known in the art since in this type of armature the armature itself is already formed from electrical insulating material there is no need for separate slot insulation so that the entire slot space can be more efficiently utilized to contain the armature windings and results in a desirably more copper per slot than would be the case in the.