When the projections are loops of {HEAD ~ wire} welded to {TAIL ~ the bushing} and frame, the elastomer flows into the loops providing better engagement 
When the projections are loops of { HEAD ~ wire } welded to { TAIL ~ the bushing } and frame , the elastomer flows into the loops providing better engagement
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH