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