The motor includes a buried magnet system and a stator operable to produce an alternating magnetic field exerting alternating {TAIL ~ axial forces} on the buried magnet system that has a self centering force and {HEAD ~ a required stiffness} to reciprocate at a frequency near an alternating current supply frequency 
The motor includes a buried magnet system and a stator operable to produce an alternating magnetic field exerting alternating { TAIL ~ axial forces } on the buried magnet system that has a self centering force and { HEAD ~ a required stiffness } to reciprocate at a frequency near an alternating current supply frequency
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH