The radially inner side of the turbine hub 42 has a turbine toothing 44 which engages in {HEAD ~ a shaft toothing} 46 of {TAIL ~ a driven shaft} 48 
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The radially inner side of the turbine hub 42 has a turbine toothing 44 which engages in { HEAD ~ a shaft toothing } 46 of { TAIL ~ a driven shaft } 48
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH