The pitch bearing 400, {HEAD ~ yaw bearing} 125, main bearing 130, generator bearing or any other bearing or item requiring lubrication may be considered a component or components of {TAIL ~ wind turbine} 100 
The pitch bearing 400 , { HEAD ~ yaw bearing } 125 , main bearing 130 , generator bearing or any other bearing or item requiring lubrication may be considered a component or components of { TAIL ~ wind turbine } 100
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH