In an embodiment, {TAIL ~ the apparatus} can be used for mounting an arm on {HEAD ~ a bearing} to form a pivot 
In an embodiment , { TAIL ~ the apparatus } can be used for mounting an arm on { HEAD ~ a bearing } to form a pivot
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH