forming said {HEAD ~ end members} with an exterior diameter greater than the diameter of the bore of the jacket member, with {TAIL ~ a machining allowance} at the interior thereof, and with a machining allowance at the faces thereof which will correspond to the end faces of the rotor 
forming said { HEAD ~ end members } with an exterior diameter greater than the diameter of the bore of the jacket member , with { TAIL ~ a machining allowance } at the interior thereof , and with a machining allowance at the faces thereof which will correspond to the end faces of the rotor
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH