Manual

8. Installation
49
8.2.3 Installation of Flange
Provide a flange-shaped sheet and install the actuator onto this sheet from the back.
• Use the nut on the actuator rod to install the actuator onto the flange.
• Secure the flange with the actuator mounting plate using screws.
If positioning is required, insert positioning pins.
(Note) For the actuator mounting hole in the actuator mounting plate, provide a hole larger than
the dimension of the nut so as to provide a clearance for the nut.
Type Nut diameter
RN3NA, RN3N (Lead screw, ball screw)
I34
RN4NA, RN4N (Lead screw, ball screw)
I30.8
Actuator mounting hole
Actuator mounting plate
Positioning pin hole (2 locations)
Positioning pin hole (2 locations)
Flange
Positioning pin (2 pcs)
Installation of actuator and flange
Type M Width across flats
Maximum tightening
torque
RN3NA, RN3N (Lead screw, ball screw) M20 × 1.0 29 49.4N·m
RN4NA, RN4N (Lead screw, ball screw) M24 × 1.0 32 76.8N·m
(Reference drawing of flange)
4-
φ
4.5 through
(M4)
2-reamed hole
φ
20 or 24HB