Thus, it is within the contemplation of the invention that each inner and outer annular member may comprise either the stator or {HEAD ~ rotor} and may comprise either the group of electromagnets or group of {TAIL ~ permanent magnets} 
Thus , it is within the contemplation of the invention that each inner and outer annular member may comprise either the stator or { HEAD ~ rotor } and may comprise either the group of electromagnets or group of { TAIL ~ permanent magnets }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL