Preferably the bushing has {TAIL ~ radial bushing projections} extending into the material and the frame has inner frame projections extending into {HEAD ~ the material} 
Preferably the bushing has { TAIL ~ radial bushing projections } extending into the material and the frame has inner frame projections extending into { HEAD ~ the material }
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD