2
Installing to your equipment
Installation direction
A hollow-shaft gearhead can be installed by using either its front or rear side
as the mounting surface.
Front
Motor
Rear
Hollow-shaft gearhead
Installation method
•
Affix the gearhead onto a smooth, machined metal surface using the
supplied hexagonal socket head screw set.
•
Drill mounting holes in the metal plate for installation of the gearhead.
•
Using the supplied hexagonal socket head screw set and the four mounting
holes provided in the gearhead’s mounting surface, affix the gearhead in
such a way that there is no gap along the equipment’s mounting surface.
•
The
GFS6G FR
does not come with hexagonal nuts. Insert flat washers
and spring washers on the head side of screws.
•
Using the supplied safety cover mounting screw (M3-2 pcs.), install the
supplied safety cover on the hollow output shaft opposite the shaft end on
which the load shaft is installed.
Maximum applicable plate thickness
The values in the table are based on the use of the hexagonal socket head
screw (supplied).
Model
∗
Maximum applicable plate
thickness [unit: mm (in.)]
GFS2G FR
5 (0.20)
GFS4G FR
8 (0.31)
GFS5G FR
GFS6G FR
12 (0.47)
∗
in the model names indicates a number representing the gear ratio.
Using the front side as the mounting surface
Use the boss of the output shaft (h8) to align the center.
Safety cover
Safety cover mounting screw (M3)
Mounting screw
Mounting plate
Flat washer
Spring washer
Nut
•
Mounting hole dimensions: Front
ØBH8
4×ØC
ØA
Boss of the output shaft
Using the rear side as the mounting surface
Safety cover
Safety cover mounting screw (M3)
Mounting screw
Flat washer
Nut
Mounting plate
Spring
washer
4×ØC
ØD min.
ØA
E
•
Mounting hole dimensions: Rear
Note
When installing the gearhead using its rear face, be certain
that dimension E does not exceed the specified value so
that contact between the mounting plate and motor is
prevented.
Model
∗
Screw
Tightening torque
[unit: N·m (lb-in)]
GFS2G FR
M5 3.8
(33)
GFS4G FR
M6 6.4
(56)
GFS5G FR
GFS6G FR
M8 15.5
(137)
∗
in the model names indicates a number representing the gear ratio.
•
Mounting hole dimensions [Unit: mm (in.)]
Model
∗
ØA ØB
H8 ØC ØD E
GFS2G FR
70
(2.76)
34
+ 0.039
0
(1.3386
+ 0.0015
0
)
5.5
(0.217)
25
(0.98)
29
(1.14)
GFS4G FR
94
(3.70)
38
+ 0.039
0
(1.4961
+ 0.0015
0
)
6.5
(0.256)
30
(1.18)
39
(1.54)
GFS5G FR
104
(4.09)
50
+ 0.039
0
(1.9685
+ 0.0015
0
)
8.5
(0.335)
35
(1.38)
44
(1.73)
∗
in the model names indicates a number representing the gear ratio.
The
GFS6G FR
does not come with hexagonal nuts. Provide threaded
holes.
Model
∗
ØA ØB
H8 ØD E
Nominal
diameter
of
mounting
screw
GFS6G FR
120
(4.72)
58
+ 0.046
0
(2.2835
+ 0.0018
0
)
42
(1.65)
57
(2.24)
M8
∗
in the model names indicates a number representing the gear ratio.
Installing a load
Installing the load shaft
•
When installing the load shaft onto the hollow output shaft of the gearhead,
align the centerlines of the hollow output shaft and load shaft.
•
The hollow output shaft has a key groove. Machine a key groove in the
load shaft and then affix the two shafts using the supplied parallel key.
•
The recommended tolerance of the load shaft is “h7.”
•
Use a stepped load shaft and affix it using an end plate if large, frequent
impacts are expected due to instantaneous stops or when the overhung load
is large. For details, refer to “Affixing method using end plate”.
