IAI America RCP4-RA6R - Manual (Page 43)

2. Installation
37
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.
䎃
Also consider enough space necessary for maintenance work such as actuator replacement and inspection.
On the base there is a datum surface prepared for the attachment slotted holes.
On the back side of the actuator, there are attachment tapped holes, through holes, positioning reamed holes and
slotted holes. For the details of the positions and dimensions, check in the appearance drawings. [Refer to 6.
External Dimensions.]
When repeatability in re-attaching is required after it is detached, utilize the reamed holes. Please note, however,
that a consideration is necessary such as to use only one point on the motor side of the reamed holes when a
fine-tuning such as perpendicularity is required.
[1] Using the Tapped Holes on the Bottom of the Base
䎃
This actuator has tapped holes for mounting so it can be fixed from the bottom of the base.
(Note that the tapped hole size depends on the model. Please see the diagrams below and 6. “External
Dimensions.”)
Also, there are reamed holes and a slotted hole for positioning pins.
Oblong Hole
Reamed Hole
Attachment 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]
RA5C
RA5R
M4 7mm
3.59N㨯m
(0.37kgf㨯m)
1.76N㨯m
(0.18kgf㨯m)
I 4H7 Depth 5.5
RA6C
RA6R
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.