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