The dampener 10 has a nut 12 mounted at {HEAD ~ one axial end} for tightening the dampener 10 onto the threaded end of {TAIL ~ the shaft} 
The dampener 10 has a nut 12 mounted at { HEAD ~ one axial end } for tightening the dampener 10 onto the threaded end of { TAIL ~ the shaft }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL