Particularly, when a change in the bore diameter of {HEAD ~ the fluid bearing} of {TAIL ~ the sleeve} significantly affects the loss and rigidity, the present invention exhibits significant effects 
of
Particularly , when a change in the bore diameter of { HEAD ~ the fluid bearing } of { TAIL ~ the sleeve } significantly affects the loss and rigidity , the present invention exhibits significant effects
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH