The integral lip captures {HEAD ~ the relative angular positions} of {TAIL ~ the shafts} about a longitudinal centerline of the assembly, defines a slide bearing between the shafts, and rigidly encases the spring 
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The integral lip captures { HEAD ~ the relative angular positions } of { TAIL ~ the shafts } about a longitudinal centerline of the assembly , defines a slide bearing between the shafts , and rigidly encases the spring
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL 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