72
Spur gear model
DC input Driver
（
Model number
：
FS1D140P10
）＋
Motor with spur gear
DC input Set model
Full / half step
In motor+gear models, the gears may be damaged if allowable torque is exceeded. When selecting a motor, ensure that its allowable torque will not be exceeded.
System configuration
P.60
Set Model Configuration
P.62
Motor dimensions
P.102
Driver dimensions
P.105
The data are measured under the drive condition of our
company. The drive torque may very depending on the accuracy of customer -side equipment.
Rated current
：
0.75A/phase
Motor size
28mm sq. (1.10inch sq.)
Motor + gear length
61.5mm (2.42inch)
61.5mm (2.42inch)
Single
shaft
Set ordering model no.
FDF521S-GX30
FDF521S-GX50
Corresponding motor model number
SH5281-72GXJ4
SH5281-72GXL4
Double
shaft
Set ordering model no.
FDF521D-GX30
FDF521D-GX50
Corresponding motor model number
SH5281-72GXJ1
SH5281-72GXL1
Allowable torque
N
・
m (OZ
・
in)
0.5 (70.80)
0.5 (70.80)
Rotor inertia
×
10
-4
kg
・
m
2
(OZ
・
in
2
)
0.01 (0.05)
0.01 (0.05)
Basic step angle
DEG
0.024
0.0144
Gear ratio
-
1
：
30
1
：
50
Backlash
DEG
1.5
1.5
Allowable speed
min
-1
100
60
Motor mass
(Note1)
kg (lbs)
0.17 (0.37)
0.17 (0.37)
Allowable thrust load
N (lbs)
10 (2.25)
10 (2.25)
Allowable radial load
(Note2)
N (lbs)
15 (3.38)
15 (3.38)
The directions of motor rotation and gear output axle rotation are the same for models with reduction ratio 1:3.6, 1:7.2, 1:20, 1:30 and 1:50 reduction ratios, and opposite for 1:10 reduction ratios.
(Note1) Driver mass
P.79
(Note2) When load is applied at 1/3 length from output shaft edge.
■
Characteristics
Operating current
：
0.75
Ａ
/phase
Use the rubber coupling
Allowable torque
Full step Half step
Source current (load applied)
Full step
Half step
Source current (no load)
Full step
Half step
FDF521S-GX30
FDF521D-GX30
FDF521S-GX50
FDF521D-GX50
DC24V
DC24V
DC36V
DC36V
0
0.2
0.4
0.6
0.8
1
0.1
1
10
100
0
1
2
3
4
5
6
7
8
9
10
Full step
Half step
Allowable torque
Source current
50
1
2
5
10
20
100
1
2
5
10
20
50 100
Torque
（
N
・
m
）
Pulse rate
（
kpulse/s
）
Number of rotations
（
min
−
1
）
Source current
（Ａ）
0
Torque
（
oz
・
in.
）
140
120
100
80
60
40
20
0
0.2
0.4
0.6
0.8
1
0.1
1
10
100
0
1
2
3
4
5
6
7
8
9
10
Full step
Half step
Allowable torque
Source current
50
1
2
5
10
20
100
1
2
5
10
20
50
100
Torque
（
N
・
m
）
Pulse rate
（
kpulse/s
）
Number of rotations
（
min
−
1
）
Source current
（Ａ）
0
Torque
（
oz
・
in.
）
140
120
100
80
60
40
20
0
0.2
0.4
0.6
0.8
1
0.1
1
10
100
0
1
2
3
4
5
6
7
8
9
10
Full step
Half step
Allowable torque
Source current
20
1
2
5
10
60
1
2
5
10
60
20
Torque
（
N
・
m
）
Pulse rate
（
kpulse/s
）
Number of rotations
（
min
−
1
）
Source current
（Ａ）
0
Torque
（
oz
・
in.
）
140
120
100
80
60
40
20
0
0.2
0.4
0.6
0.8
1
0.1
1
10
100
0
1
2
3
4
5
6
7
8
9
10
Full step
Half step
Allowable torque
Source current
20
1
2
5
10
60
10
20
50 100 200
500
Torque
（
N
・
m
）
Pulse rate
（
kpulse/s
）
Number of rotations
（
min
−
1
）
Source current
（Ａ）
0
Torque
（
oz
・
in.
）
140
120
100
80
60
40
20
