
43
8. Options
With AQ seal
No lubrication
With AQ seal
No lubrication
Stopped after 1,800 km
due to lar
e wea
No problem was found
after 15,000 km
Stopped after 20 km
due to lar
e wea
No problem was found
a
ter 5,000 km
Driven distance (km)
Driven distance (km)
Ball screw
Q seal
Base integrated type guide
Q 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 20qC
Surrounding air
temperature 30qC
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.
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