A space in which {HEAD ~ an oil film} functioning as {TAIL ~ an oil film damper} is formed is defined by the outer peripheral surface of the outer race and the inner peripheral surface of the casings 
functioning as
A space in which { HEAD ~ an oil film } functioning as { TAIL ~ an oil film damper } is formed is defined by the outer peripheral surface of the outer race and the inner peripheral surface of the casings
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH