IAI America ISPDACR-ESD - Manual (Page 51)

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8. Options
With AQ seal
No lubrication
With AQ seal
No lubrication
Stopped after 1,800 km
due to large wear
No problem was found
after 15,000 km
Stopped after 20 km
due to large wear
No problem was found
after 5,000 km
Driven distance (km)
Driven distance (km)
Ball screw
AQ seal
Base integrated type guide
AQ seal
Nut Ball screw
8. Options
8.1 AQ Seal
(Features)
z The AQ seal is a lubrication unit that uses
a lubricating member made of
resin-solidified lubricating oil.
z The AQ seal is a porous member
containing a lot of lubricating oil, so
lubricating oil oozes out to the surface by
means of capillary phenomenon.
z When the AQ seal is pressed against the
guide and ball screw surface (steel-ball
rolling surface), lubricating oil is supplied
and this, combined with use of grease,
keeps the actuator maintenance-free for a
long time.
(Effects)
z Combined with the effect of grease
charged before shipment, the actuator
can remain maintenance-free for 5,000
km or 3 years.
However, it is recommended that the
actuator be greased regularly according
to the standard maintenance schedule to
ensure a stable use for a long term.
„ Life of guide (with/without AQ Seal)
„ Life of Ball Screw (with/without AQ Seal)
„ Change in Oil Content of AQ Seal
(Figures after 1.5 years are projections.)
Oil content
Surrounding air
temperature 20
qC
Surrounding air
temperature 30
qC
Elapsed years
z Based on 12 hours of operation a day, 250 days a year
z Aging of lubricating oil content and factors relating to driving
of the actuator are excluded.