Such microstructure qualities are particularly important for {HEAD ~ the high sliding speeds} on the gearing and on {TAIL ~ the bearing journals} which occur in operation, in particular in the case of the simultaneous occurrence of high temperatures and low viscosity values of the oils used in the engine 
Such microstructure qualities are particularly important for { HEAD ~ the high sliding speeds } on the gearing and on { TAIL ~ the bearing journals } which occur in operation , in particular in the case of the simultaneous occurrence of high temperatures and low viscosity values of the oils used in the engine
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH 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 OTH OTH OTH OTH OTH