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