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