{HEAD ~ An output shaft} 5 of motor 4 and shaft 3 are in {TAIL ~ mutual alignment}, i.e. at least substantially coaxial with respect to each other 
{ HEAD ~ An output shaft } 5 of motor 4 and shaft 3 are in { TAIL ~ mutual alignment } , i.e. at least substantially coaxial with respect to each other
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH