{HEAD ~ Flexure} of {TAIL ~ the internal gear} more than that is limited by the iron ring 22 
{ HEAD ~ Flexure } of { TAIL ~ the internal gear } more than that is limited by the iron ring 22
HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH