{HEAD ~ The guides} define {TAIL ~ respective movement profiles} conjugated and shaped so that each rolling element abuts on the respective guide at each point of the latter along the movement path 
{ HEAD ~ The guides } define { TAIL ~ respective movement profiles } conjugated and shaped so that each rolling element abuts on the respective guide at each point of the latter along the movement path
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH