Tighter control of the preload therefore results in {HEAD ~ longer service life} with {TAIL ~ a higher level} of operating precision 
with
Tighter control of the preload therefore results in { HEAD ~ longer service life } with { TAIL ~ a higher level } of operating precision
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH