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