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