A plurality of support members are attached to the housing and supportingly position {HEAD ~ the sealing ring} radially within {TAIL ~ the housing} 
radially within
A plurality of support members are attached to the housing and supportingly position { HEAD ~ the sealing ring } radially within { TAIL ~ the housing }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL