11
Slot
Tapped hole
Reamed hole
Tapped hole
Slot
Reamed hole
7.1.1 Using the Tapped Holes at Back of the Base
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 slot
is provided on the counter-motor side.)
Type Tap size
Maximum
screw depth
Minimum length of
screw engagement
Reamed hole Slot
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.
Length of screw
engagement
Maximum screw
depth
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