A frictionless plastic bearing material is not only interposed between the metal plates with {HEAD ~ its opposite sides} engaging opposite plates for bearing and spacing purposes but is also curved arcuately to conform to the circular curvature of {TAIL ~ the race} 
A frictionless plastic bearing material is not only interposed between the metal plates with { HEAD ~ its opposite sides } engaging opposite plates for bearing and spacing purposes but is also curved arcuately to conform to the circular curvature of { TAIL ~ the race }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL