7-15
KRF
7. Installation and Operation
7.
Installation and Operation
7. Installation and Operation
7-5
Base mounting method
[Standard base (Tap hole specification)]
Note)
Secure the actuator using all the mounting holes.
Note)
Use the bolt with the most appropriate length. See Table 1 for details.
Fit length
Mounting surface
Bolts for securing base
Fig. 4 Drawing for mounting KRF3/4/5 tap specification
Fit length
Bolts for securing base
Mounting surface
Fig. 5 Drawing for mounting KRF6 Tap specification
Model number
KRF3
KRF4
KRF5
KRF6
Screw size
M3
M3
M4
M6
Material of screw
Steel
SUS
Steel
SUS
Steel
SUS
Steel
SUS
Tensile strength rank
10.9 A2-70 10.9 A2-70 10.9 A2-70 10.9 A2-70
Fit length of screw [mm]
4.5
4.5
6
6
Tightening
torque
[N·cm]
Material of
mounting
surface
Iron
130
100
130
100
310
230
860
770
Aluminum 125
100
125
100
250
230
660
660
Table 1 Tightening torque for mounting base (when using bottom surface tap)