a limiting element for limiting {TAIL ~ rotational displacements} of the second coupling element with {HEAD ~ respect} to the first coupling element; and 
a limiting element for limiting { TAIL ~ rotational displacements } of the second coupling element with { HEAD ~ respect } to the first coupling element ; and
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH