A workpiece carrier carousel is rotationally drivable about {HEAD ~ the axis} in {TAIL ~ the ring gap} 
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A workpiece carrier carousel is rotationally drivable about { HEAD ~ the axis } in { TAIL ~ the ring gap }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL