The supportingly position of the sealing ring is free to move radially independent of {HEAD ~ the plurality} of {TAIL ~ support members} 
The supportingly position of the sealing ring is free to move radially independent of { HEAD ~ the plurality } of { TAIL ~ support members }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL