IAI America RCP4CR-SA7C - Manual (Page 54)

2. Installation
48
2.3.2 Installation of Main Unit
The surface to mount the main unit should be a machined surface or a plane that possesses an equivalent
accuracy and the flatness should be within 0.05mm. Also, the platform should have a structure stiff enough
to install the unit so it would not generate vibration or other abnormality.
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Also consider enough space necessary for maintenance work such as actuator replacement and inspection.
There are datum surfaces for attachment on the base.
The flatness of the slider movement is designed to be 0.05mm/m at maximum to the datum surface.
On the rear side of the actuator, there are tapped holes and through holes for attachment and reamed hole
and oblong hole for positioning. See the appearance drawings for the details of the position and diameters.
[Refer to 5. External Dimensions]
Utilize the reamed holes when repeatability in the attachment after detaching is required. However, when
small tunings such as the perpendicularity is required, consider such things like to use one reamed hole.
[1] Using the Tapped Holes on the Bottom of the Base
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This actuator has the tapped holes for mounting so it can be fixed from the bottom of the base.
(Note that tapped hole size depends on the model. Please see the diagrams below and 13,1 "External
Dimensions.")
Also, there are reamed holes and a slotted hole for positioning pins.
Tapped Hole
Oblong Hole Reamed Hole
Through Hole

Tightening Torque
Model
Name
Tapped
Hole Size
Tapped Holes Depth
In the case that steel
is used for the bolt
seating surface:
In the case that
aluminum is used for
the bolt seating
surface:
Reamer Hole [mm]
SA5C
SA5R
M4 7mm
3.59N㨯m
(0.37kgf㨯m)
1.76N㨯m
(0.18kgf㨯m)
I 4H7 Depth 5.5
SA6C
SA6R
M5 9mm
7.27N㨯m
(0.74kgf㨯m)
3.42N㨯m
(0.35kgf㨯m)
I 4H7 Depth 5.5
SA7C
SA7R
M5 9mm
7.27N㨯m
(0.74kgf㨯m)
3.42N㨯m
(0.35kgf㨯m)
I 4H7 Depth 5.5
Tightening screws
x  Use hexagonal socket head bolts for the male threads for installing the base.
x  Use of high-tension bolts meeting at least ISO 10.9 is recommended.
x  The length of thread engagement should be 1.8 times more than the nominal diameter, and pay attention
not to stick the screw out inside the actuator.
Caution: Be careful when selecting the bolt length. If bolts of inappropriate lengths are used, the
tapped holes may be damaged, actuator mounting strength may become insufficient, or
contact with driving parts may occur, resulting in lower precision or unexpected accidents.