IAI America RCS3PCR-SS8C - Manual (Page 57)

5. Installation
47
Oblong
hole
Length of screw
engagement
Maximum screw
depth
5.3.1 Using the Tapped Holes at Back of the Base
[RCS2 (CR)]
Tapped holes are provided on the back of the base for mounting the actuator. Install the actuator using these
tapped holes. The sizes and effective depths of tapped holes are listed below. Be careful not to let the ends of
bolts project from the holes. If necessary, use the additional reamed holes that are provided for positioning
purpose.
(Two reamed holes are provided, one on the motor side and the other on the counter-motor side. One oblong
hole is provided on the counter-motor side.)
Type Tap size Maximum screw
depth
Minimum length of
screw engagement
Reamed hole Oblong hole
SA4C, D, R M3 5 mm 3 mm
� 3H7, depth 5 mm or
less
A: 3H7, B: 4, depth
5 mm or less
SA5C, D, R M4 7 mm 4 mm
� 4H7, depth 5 mm or
less
A: 4H7, B: 5, depth
5 mm or less
SA6C, R M5 8 mm 5 mm
� 4H7, depth 5 mm or
less
A: 4H7, B: 5, depth
5 mm or less
SA6D M5 8 mm 5 mm
� 4H7, depth 5 mm or
less
A: 4H7, B: 5, depth
5 mm or less
SA7C, R M5 9 mm 5 mm - -
SS7C, R M5 8 mm 5 mm - -
SS8C, R M8 10 mm 8 mm - -
Caution: When using an aluminum-based actuator
If the length of engagement of the screw to be attached into the tapped hole is 5/8 or
smaller than the maximum screw depth of the tapped hole, reduce the torque to 70 to 80%
of the specified torque before tightening the screws.
�
�
Oblong
hole
Tapped hole
Reamed hole
Tapped hole
Reamed hole