{HEAD ~ The guide disc} is guided by {TAIL ~ the axial bridges} and can be displaced axially via a positioning unit by a piston located inside the hollow shaft 
is guided by
{ HEAD ~ The guide disc } is guided by { TAIL ~ the axial bridges } and can be displaced axially via a positioning unit by a piston located inside the hollow shaft
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL 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