SMD gearbox offers an industrial solution for motion transmission. as a trailblazer in the manufacturing of various types of industrial gearbox in Taiwan. SMD is one of the largest manufacturers and exporters of high precision gearbox solutions. SMD developed professional manufacturing capabilities offering various types of solutions such as inline planetary gearbox with flange-end, right angle gearbox, planetary gearbox with shaft-end, hollow rotary gearbox, and harmonic gearbox. Visit us:- www.smdgearbox.com

1. SMD Right Angle Gearbox
4 Reasons to Increase 50% Production
GET IN
TOUCH!
HIGH PRECISION
SERVO GEARBOX
SMD GEARBOX
2
4
1
3
EXCLUSIVE PRODUCT,
BACKLASH 1 ACR-MIN
INCREASES MACHINE
WORKING SPEED & STABILITY
LOW VIBRATION
INCREASE PRODUCTION
EFFICIENCY & QUANTITY
HEADQUARTERS
SMD Gearbox (Taiwan)
No. 339, Taishun Road, Taiping Dist,
Taichung City, Taiwan
+886 (09) 67388376
sales@smdgearbox.com www.smdgearbox.com
A-51, H Block, M.I.D.C, Pimpri-Chinchwad,
Pune-411018, Maharashtra, India
+91 7030669818
HEAD OFFICE (OVERSEAS)
SMD Gearbox (India)

2. Advance
Production
Machinery
Research
And
Development
CONTENTS
Accurate
Control
System
02
10
21
03
13
24
04
17
COMPANY INTRODUCTION
PRODUCTS
SNP SERIES - PLANETARY GEARBOX WITH SHAFT END
SNDU SERIES - PLANETARY GEARBOX WITH
FLANGE END
SS SERIES - RIGHT ANGLE GEARBOX
ST SERIES - HOLLOW ROTARY GEARBOX
SCSG SERIES - HARMONIC GEARBOX WITH SOLID
SHAFT END
SSHG SERIES - HARMONIC GEARBOX WITH HOLLOW
SHAFT END

3. 2
About us
Our Company Name SMD stands for SEIMITSU
MOTION DRIVES as a trailblazer in the manufac-
turing of various types of industrial Gearbox in
Taiwan. SMD is one of the largest manufacturer and
exporter of Gearbox as well as Motion Products.
SMD earned their position in the market as profes-
sional manufacture of mechanical products, which
specialize in designing, planning, production and
sales of integrity. With the innovation and passion,
we are committed to being your best business part-
ner in the field of Gearbox and motion technology.
We have experienced technocrats and engineers
in our team who are continuously developing the
best quality gearbox that satisfied customer re-
quirements. Teamwork and innovation create a
great work environment.
What We Provide
SMD provides patented products including the very
popular backlash free Ball Reducer , back- lash free
Right Angle Gearbox (SS series), highly accurate
Hollow Rotary Platform Gear Reducer (ST series)
and precision Planetary Gearhead (SNP series).
Why Choose Us
As a company we focused on research and devel-
opment, SMD has produced a wide range of gear-
boxes which contributes to the growth of industry.
In doing so, we have accumulated technical exper-
tise that electrify our progress. We are continuous
working to increase our development speed.
Inspection
1 3
Processing
Quality Control
Assembly

4. 3
Planetary Gearbox
Hollow Rotary Gearbox
Right-Angle Gearbox
Harmonic Gearbox
SNP Series SNDU Series
ST Series
SS Series
SSHG Series SCSG Series

5. 4
SNP SERIES - Planetary Gearbox With Shaft End
SNP 060
SNP 040 42X42mm
SNP 060 60X60mm
SNP 090 92X92mm
Feature
» High rating torque and low inertia.
» Suitable for Combination with any kind of motors.
» Total enclosed design. Easy installing and combination.
» The design of long shaft is suitable to driven by rack and simplify the mechanism.
SNP 120 115X115mm
SNP 150 142X142mm
Model
Name
Square
Profile
Stage
L1– Single
L2– 2 Stage
Ratio
1:3~1:100
Refer Motor
Drawing 1-1
L1 005 S B A
motor drawing 1-1

6. 5
Performances Unit Stages Ratio SNP40 SNP60 SNP90 SNP120 SNP150
Nominal Output torque Kgf*m/Nm
1
3 N/A 3.1/ 30.38 12.9/ 126 26/ 254 51/ 500
4 1.6/ 15.68 4.2/41.16 13.2/ 129 27/ 264 53/519
5 1.7/16.66 4.3/42.14 14.4/141 30/294 54/529
7 1.5/ 14.7 4/39.2 13.4/131 24/235 50/490
9 N/A N/A N/A 25/245 N/A
10 1.3/ 12.74 3.8/37.24 12.6/123 19/186 42/411
2
9 N/A 3.1/ 30.38 12.9/ 126 N/A 51/ 500
12 1.4/ 13.72 4.2/41.16 12.9/ 126 26/ 254 51/ 500
15 1.7/16.66 4.3/42.14 14.4/141 26/ 254 51/ 500
16 1.6/ 15.68 4.2/41.16 13.2/ 129 27/ 264 53/519
20 1.6/ 15.68 4.2/41.16 14.4/141 27/ 264 53/519
21 1.5/ 14.7 3.1/ 30.38 12.9/ 126 26/ 254 51/ 500
25 1.7/16.66 4.3/42.14 14.4/141 30/294 54/529
28 1.6/ 15.68 4.2/41.16 13.2/ 129 27/ 264 53/519
30 1.3/ 12.74 3.1/ 30.38 12.9/ 126 30/294 51/ 500
35 1.7/16.66 4.3/42.14 14.4/141 30/294 54/529
40 1.6/ 15.68 4.2/41.16 13.2/ 129 27/ 264 53/519
49 1.5/ 14.7 4/39.2 13.4/131 24/235 50/490
50 1.7/16.66 4.3/42.14 14.4/141 30/294 54/529
70 1.5/ 14.7 4/39.2 13.4/131 24/235 50/490
100 1.3/ 12.74 3.8/37.24 12.6/123 19/186 42/411
Max Acceleration Torque Kgf*m/Nm 1,2 3~100 3 times Nominal Output Torque
Emergency Stop Torque (2) Kgf*m/Nm 1,2 3~100 3.4 times Nominal Output Torque
Permissible Input Speed (P1)(3) rpm 1,2 3~100 1000 1000 1000 1000 1000
Reduced Backlash (P1) Arc-min
1 3~10 1 1 1 1 1
2 9~100 ≤1 ≤1 ≤1 ≤1 ≤1
Permissible Input Speed (3) rpm 1,2 3~100 3000 3000 3000 3000 3000
Standard Backlash Arc-min
1 3~10 15 5 5 6 6
2 9~100 30 10 9 11 11
Max. radial force (mid shaft) Kgf/N 1,2 3~100 70/ 686 110/ 1078 350/ 3459 465/ 4557 626/ 6134
Max. axial force Kgf/N 1,2 3~100 35/ 343 55/ 539 175/ 1729 232/ 2278 313/ 3067
Allowable Input Shaft Diameter mm 1,2 3~10 5-8 6.35-14 11-24 19-35 20-38
Rated life (4) hr 1,2 3~100 ＞ 10,000 At permissible input speed and nominal output torque.
Operating Temperature Range ℃ 1,2 3~100 -10⁰C to +40⁰C ambient --90⁰C max operating case temperature
Sound level dB (A)
1 3~10 62 62 65 65 70
2 9~100 62 62 65 65 70
Lubrication - 1,2 3~100 Lubricated for life (Synthetic Grease)
Protection class - 1,2 3~100 IP54
Gearhead Inertia Kg*cm2
1 3~10 0.049 0.127 1.247 2.274 10.19
2 9~100 0.049 0.127 1.247 2.274 10.19
Efficiency at full load % 1,2 3~100 95 % for 1 stage and 90 % for 2 stage
Weight Kg
1 3~10 0.4 1.1 3.3 6.8 13.8
2 9~100 0.5 1.3 4.5 8.3 14
No-load running torque Kgf*m/Nm
1 3~10 0.51/0.05 3/ 0.3 6.1/0.6 12/1.2 14.8/1.4
2 9~100 0.51/0.05 3/0.3 6.1/0.6 12/1.2 14.8/1.4
» Please contact SMD for 3 stage ratios.
» For input speeds above 3000 rpm, please consult us, with application details.
Specification Chart

7. 6
SNP90
SNP60
SNP40
L 5.50 20.50
13
-
0.011
0
35
-0
.03
0
4
42
20
16 2
42
5
29
8
30
4X 3.50
P.C.D 50
L1=57.7
L L2=75
L3=92.5
M4 12
4.50 4
5
8.5
P.C.D 70
4 x 5.50
L1=75.85
L2=95.85
L
L3=115.85
* Standard Output Shaft 14&16
60
14 -0.011
0
50
-0
.03
0
30
30.50
34
8
20 3
60
3.5
12
34
14
50
5
9
M5 14
5.50 4
L
P.C.D 100
4 x 6.60
L1=88.9
L2=123.9
L
L3=158.9
92
90
22
-
0.013
0
80
-0
.03
0
37
38
10
10
30 3
7
46
19
70
6
13.5
M6 17
6.50 5
L
Mechanical Dimensions

8. 7
SNP120
SNP150
Mechanical Dimensions
4X 9
P.C.D 130
L1=129.7
L2=168.75
L
L3=203.75
32
-
0.02
0
110
-
0.04
0
51
53
12
15
115
40 3
113
8
10
49
22
95
10
19
M12 29
12.50 5
L
4X 10.50
P.C.D 165
L1=187
L2=225.2
L
L3=254.25
130
-0
.04
0
40
-0
.02
0
142
71
75
20
70
50 3
142
7
21.50
74
35
110
12
23
M12 29
12.50 5
L

9. 8
Introducing SMD Planetary Gearbox P1 Type
SMD Planetary Gearbox P1 Type
4 Reasons To Increase 50% Production
Exclusive product,
Backlash 1 arc-min
Increase machine
working speed & stability
Low vibration
Increase production
efficiency & quantity

10. 9
SMD Planetary
Gearbox P1 Type

11. 10
SNDU Series - Planetary Gearbox With Flange End
Feature
» Special output structure for rotating disk (flange) rigidity.
» Attach Load directly onto disk for rotating, save space and simplify mechanism.
» Has crossed roller bearing for rigid rotation, precise positioning and high axial and
radial force capability.
» Lubricated for life.
SNDU 060
SNDU 060 60X60mm
SNDU 090 92X92mm
SNDU120 130X130mm
SNDU150 180X180mm
Model
Name
Square
Profile
Stage
L1– Single
L2– 2 Stage
Ratio
1:3~1:100
L1 005
Refer Motor
Drawing 1-1
S B A
motor drawing 1-1

12. 11
Performances Unit Stages Ratio SNDU60 SNDU90 SNDU120 SNDU150
Nominal output torque Kgf*m/Nm
1
3 2.7/26.4 9/88.2 18.2/178.3 35.7/349.8
4 2.9/28.4 9.2/90.1 18.9/185.2 37.1/363.5
5 3/29.4 10/98 21/205.8 38.5/377.3
7 2.8/27.4 9.1/89.1 11.2/109.7 35/343
9 N/A N/A 17.5/171.5 N/A
10 2.6/25.4 8.8/86.2 10.5/102.9 34.3/336.1
2
9 2.7/26.4 9/88.2 N/A 35.7/349.8
12 2.7/26.4 9/88.2 18.2/178.3 35.7/349.8
15 2.7/26.4 9/88.2 18.2/178.3 35.7/349.8
16 2.9/28.4 9.2/90.1 18.9/185.2 37.1/363.5
20 2.9/28.4 9.2/90.1 18.9/185.2 37.1/363.5
21 2.7/26.4 9/88.2 18.2/178.3 35.7/349.8
25 3/29.4 10/98 21/205.8 38.5/377.3
28 2.9/28.4 9.2/90.1 18.9/185.2 37.1/363.5
30 2.7/26.4 9/88.2 18.2/178.3 35.7/349.8
35 3/29.4 10/98 21/205.8 38.5/377.3
40 2.9/28.4 9.2/90.1 18.9/185.2 37.1/363.5
49 2.8/27.4 9.1/89.1 11.2/109.7 35/343
50 3/29.4 10/98 21/205.8 38.5/377.3
70 2.8/27.4 9.1/89.1 11.2/109.7 35/343
100 2.6/25.4 8.8/86.2 10.5/102.9 34.3/336.1
Max Acceleration Torque Kgf*m/Nm 1,2 3~100 3 Times Nominal Output Torque
Emergency Stop Torque (2) Kgf*m/Nm 1,2 3~100 3.4 Times Nominal Output Torque
Permissible Input Speed (3) rpm 1,2 3~100 1000
Reduced Backlash(P1) Arc-min
1 3~10 <1 <1 <1 <1
2 9~100 1 1 1 1
Max Tilting moment Kgf*m/Nm 1,2 3~100 3.75/36.75 13.7/134.26 27.48/269.3 37.38/366.3
Max. radial force (5) Kgf/N 1,2 3~100 214/2097 442/4331 687/6732 779/7634
Max. axial force (5) Kgf/N 1,2 3~100 107/1048 221/2165 343.5/3366 389.5/3817
Rated life (4) H 1,2 3~100 ＞10,000
Operating Temperature Range ⁰C 12 3~100 -10⁰C to +40⁰C ambient --90⁰C max operating case temperature
Sound level dB (A)
1 3~100 63 66 68 70
2 9~100 63 66 66 68
Lubrication - 1,2 3~100 Lubricated for life (Synthetic Grease)
Protection class - 1,2 3~100 IP54
Gearhead Inertia Kg*cm2
1 3~10 0.127 1.247 2.274 10.19
2 9~100 0.127 1.247 1.247 10.19
Efficiency at full load rated(4) % 1,2 3~100 Stage one 95%；Stage two 90%
Weight Kg
1 3~10 0.8 3 6.4 13
2 9~100 1.1 4.1 8.4 16
No-load running torque Kgf*m/Nm
1 3~10 3/0.3 6.1/0.6 12/1.2 14.8/1.45
2 9~100 3/0.3 6.1/0.6 12/1.2 14.8/1.45
» Please contact SMD for 3 stage ratios.
» For input speeds above 3000 rpm, please consult us and provide application details.
Specification Chart

13. 12
SNDU60
SNDU90
SNDU120
SNDU150
4x 5.50
P.C.D 70
6 x M4x0.7 8
P.C.D 23
0.50
8 L1
L2
30.80
55
-
0
0.02
60
16.50
9
+
0.02
0
10
50
41
14
3.50
10.50
32.50
L1=54
L1 L2=74
L3=94
L1=78.5
L2 L2=98.5
L3=118.5
8 x M8x1.25 15
P.C.D 42
4 x 9
P.C.D 105
0.50
10 L1
54
85
-
0
0.03
92
18.50
20
+
0.02
0
12
70
19
7
46
L2
L1=78.25
L1 L2=117.25
L3=156.75
L1=106.75
L2 L2=146.25
L3=185.75
4x 11
P.C.D135
8xM10x1.5 15
P.C.D 55
1.50
10 L1
L2
77.40
112
-
0
0.03
130
120
22.50
26
+
0.021
0
15
110
24
80
59
18
7
L1=108.2
L1 L2=137.25
L3=176.8
L1=140.7
L2 L2=169.75
L3=209
8 x M10x1.5 18
P.C.D 68
4 x 13.50
P.C.D 165
1.5
L2
24
142
90
126
-
0
0.04
24 12 L1
180
32
+
0.03
0
5
5
45.50
98
35
114.30
L1=177.5
L1 L2=191.7
L3=231.25
L1=213.5
L2 L2=227.7
L3=267.25
Mechanical dimension

14. 13
SS Series - Right Angle Gearbox
Feature
» Hollow Shaft and Solid Shaft.
» Adjustable backlash and suitable low load and intermitted motion.
» Hollow output shaft design for various applications and 5 mounting surfaces for
flexible installations.
» Arguably the easiest Right-Angle gearhead on the market to geometrically integrate
into your machine. Rectangular “cube-like” geometry provides for easy fitting into
your device. With 5 mounting surfaces, other components can be attached to the SS.
SS 60
SS 070 70X70mm
SS 090 92X92mm
SS 120 115X115mm
SS 150 142X142mm
SS 180 182X182mm
Model
Name
Square
Profile
Ratio
1:4~1:200
Output Shaft
F-Hollow Shaft
SF-Solid Shaft
010
F
motor drawing 1-1
Refer Motor
Drawing 1-1
S B A

15. 14
SS gearhead Type (1) (3)
Unit
SS42 SS70 SS90 SS120 SS150 SS180
includes In-Line input type SNP40 SNP60 SNP90 SNP120 SNP120 SNP150
Ratio : 1 2 2 2 2 2
Nominal Output Torque Kgf*m/Nm 1.4 / 13.7 4.5 / 44.1 13.5 / 132 22.5 / 220 45/ 441 81 / 793
Maximum Acceleration Torque Kgf*m/Nm 3 times nominal output torque
Emergency Stop Torque Kgf*m/Nm 3.4 times nominal output torque
Permissible Input Speed rpm 1500 1200 1000 800 800 500
Permissible Output Speed rpm 1500 600 500 400 400 250
Backlash Arc-min 6 3 3 3 3 3
Maximum Radial Force Kgf/N 25/245 86/ 843 140/ 1373 250/ 2452 350/ 3432 550/ 5394
Maximum Axial Force Kgf/N 12.5/ 118 43/ 422 70/ 686 125/ 1226 175/ 1716 257/2697
Allowable Input Shaft Diameter mm 5~8 6.35~14 11~24 19~35 19~35 20~38
Rated Operation Life hr ＞ 10,000 At permissible input speed and nominal output torque.
Operating Temperature °C -10 °C to 40 °C (ambient) / 90 °C (case maximum temp.)
Sound Level dB 62 65 65 70 70 70
Mounting position & Lubrication - All Positions-Lubricated for life (Synthetic grease)
Ingress Protection Class IP IP54
Direction of rotation - Motor and gearhead shaft opposite directions
Gearhead Inertia Kg*cm² 0.049 0.127 1.25 2.274 2.274 10.19
Efficiency at Full Load % 1 Stage 85% - 2 Stage 80%
Weight kg 1 2.2 5.7 12.5 17 52.1
No Load Running Torque Kgf*m/Nm 0.51/0.05 3/0.3 6.1/0.6 12/1.2 12/ 1.2 14.8/1.45
Installed Precautions
» It must be run through installing in right-angle Hollow Gearbox.
» The SS can install in deviation when running through yet:
1. The deflection can´t be greater than 0.5 degree.
2. The Eccentricity can´t be greater than 0.03mm.
» SF suffix indicates solid shaft -- the 42 size is available only with ratio 1 and solid
output shaft.
» SS42SF ratios-- L1(1stage): 4,5,7,10; L2 (2stage): 12,15,16,20,21,25,28,30,35,40,49,50,70.
» F suffix indicates Hollow shaft is standard. However, “solid output shaft” and “double output
shafts” are regular options.
» SS 70 to SS150 ratios -- L1(1stage): 6,8,10,14,20 ; L2 (2stage): 18,24,30,32,40,42,50,56,60,
70,80,98,100,140,200. Please inquire for any ratio not shown.
Specification Chart

16. 15
SS42SF
SS70F
SS90F
3
21
21 21 45 L
M3 10
3.50 4
P.C.D 48
4 xM3x0.5 6
40
-0
.03
0
40
-
0.03
0
8 -0.01
0
10 min. 58.50
10 min.
31 min.
20
P.C.D 44
4xM3x0.5 6
16
2
L
66
P.C.D 44
4xM3x0.5 6
99.50
8
30
5
29 L1=61.5
L2=79
L
L3=96.5
5
16
+0.02
+0.04
10.3
L
57.7
35
35
35
P.C.D 75
4xM5x0.8 10
60
3.50
12
34
14
50
60
-0
.03
0
60
-0
.03
0
42
19 min.
70
4 min.
3 min. 3 min.
P.C.D 60
4xM5x0.8 10
93
92.70 L
L1=142
P.C.D 60
4xM5x0.8 10
L1=49.3
L2=69.3
L
L3=89.3
6
20
+0.02
+0.04
13
46 L
59.5
46
46
P.C.D 105
4xM6x1.0 12
92
7
46
19
70
92
4.5min
3min
80
-0
.03
0
29min
80
-0
.03
0
46
3min
P.C.D 75
4xM6x1.0 12
125.50
L1=184
105.50 L
P.C.D 75
4xM6x1.0 12
L1=78.5
L2=113.5
L
L3=148.5
Mechanical dimension

17. 16
SS120F
SS150F
SS180F
8
24
+0.02
+0.04
15.3
L
68.5
130
57.50
57.50
57.50
P.C.D 130
4xM8x1.25 16
7
20
59
24
110
60
110
-
0.04
0
110
-
0.04
0
3.50 min.
3.50 min.
5 min. 115 33.5 min.
P.C.D 105
4xM8x1.25 16
153.50
L1=259.70
126 L
P.C.D 105
4xM8x1.25 16
L1=133.70
L2=162.75
L
L3=197.75
P.C.D 165
4xM10x1.5 20
10
38
+0.02
+0.04
71
71
22.3
71 L
104.5
130
7
20
59
24
110
130
-
0.04
0
4 min. 4 min.
6 min. 142 44 min.
130
-0
.04
0
80
P.C.D 120
4xM10x1.5 20
P.C.D 120
4xM10x1.5 20
192
L1=268.70
175.50 L
L1=93.2
L2=122.25
L
L3=156.75
14
50
+0.02
+0.04
91
91
91
28.8
L
146.8
142
P.C.D 215
4xM12x1.75 24
7
21.5
74
35
110
160
-0
.04
0
160
-0
.04
0
100
12.5 min. 182 70 min.
10 min. 10 min.
P.C.D 140
4xM12x1.75 24
264.50
L1=367.30
237.80 L
P.C.D 215
4xM12x1.75 24
L1=129.5
L2=167.7
L
L3=196.75
Mechanical dimension

18. 17
ST Series-Hollow Rotary Gearbox
Feature
» Max backlash 0f 0.5 Arc min.
» Large hollow rotary flange - hollow bore for wiring or shafts.
» Hollow bore driven by your servo motor via large helical ring gear integrated in a rotating
flange provides smooth, accurate and fast positioning & indexing.
» Flange rotates on precision high capacity “crosed roller” type bearing for positional
accuracy, rigidity and heavy axial loads.
» Larger reduction ratios achievable by inputting with planetary or right angle gearhead
Refer Motor
Drawing 1-1
ST 085
ST 060 60X60mm
SS 090 92X92mm
SS 120 130X130mm
SS 150 180X180mm
Model
Name
Square
Profile
Ratio
1:10 and 1:30
010 S B A

19. 18
ST Structure
Cross Roller Bearing
Performance Unit ST85 ST130 ST 200 ST230 ST280 ST 320
Ratio : 30 10 10 10 10 10
Nominal Output Torque Kgf*m/Nm 0.51/4.99 5.1/50 6.63/65 8.67/85 9.18/90 14.3/140.3
Maximum Acceleration Torque Kgf*m/Nm 3 times nominal output torque
Emergency Stop Torque Kgf*m/Nm 3.4 times nominal output torque
Permissible Input Speed rpm 3,000 3,000 600 600 600 600
Standard Backlash
Arc-min 0.5 0.5 0.5 0.5 0.5 0.5
Arc-sec 30 30 30 30 30 30
Max. tilting moment at flange face Kgf*m/Nm 1.02/10 8.4/84.32 14.28/140 65.97/646.45 95.5/939.9 347.1/3402
Maximum radial load Kgf/N 50/490 200/1960 694/6801 835/8183 1000/9800 3214/31500
Maximum axial load Kgf/N 25/245 100/980 347/3402 417.5/4091.5 500/4900 1607/15750
Rated Operation Life hr 10,000 At permissible input speed and nominal output torque.
Operating Temperature °C -10 °C to 40 °C (ambient) / 90 °C (case maximum temp.)
Lubrication - Lubricated for life (Synthetic grease)
Ingress Protection Class IP IP54
Gearhead Inertia Kg*cm² 0.02 0.2 3.6 2.3 4.8 20
Efficiency at Full Load % 80%
Weight Kg 0.95 3.6 13.2 16.8 22.5 28.1
No Load Running Torque Kgf*m/Nm 0.51/0.05 5.1/0.51 7.2/0.7 17/1.666 20/1.96 24.5/2.401
» Larger reduction ratios possible by inputting with an in-line or right angle gearhead.
» Efficiency at full load is 90%
Specification Chart

20. 19
ST85
ST130
53
56
-
0
0.03
80
-
0
0.03
3 13 7 22 8
30
8
3.50
27.70
10.5
10.5
42
4xM3 6
35 +0.03
0
2 x 3 6
P.C.D 50
8 xM5 10
P.C.D 44
4x 6.60
P.C.D 100
42.50
42.50
42.50 42.50 33.54
9.5°
5.40 55.04
3
17
3
0
8
4xM4x0.7 8
P.C.D 46
65 65
65
65
48.29
60
50
19
P.C.D 60
8xM5x0.8 10
P.C.D 66
2x 4 8 4X 9
P.C.D 145
4xM3 6
50
0
+0.03
10.5°
75
-
0.03
0
125
-
0.04
0
5.3 16.3 15 40 5
24.6 57
50
14
4
5.7
33.7
1
0
0
0
+
0
.
0
4
5
0
83.29
P.C.D 90
6 xM5x0.8 10
P.C.D 70
4XM5x0.8 10
1
4
5
25
9.40
ST200
Mechanical dimension

21. 20
ST230
ST280
ST320
117.50
117.50
117.50 117.50 97.50
P.C.D 130
10 xM6 12
P.C.D 130
2x 6 12
P.C.D 280
4 x 9
P.C.D 260
4 x M8 16
105
0
+0.04
130
240 -0.05
0
30
2xM5 10
9° 10°
150
-
0.04
0
230
-
0.05
0
34
25
12
19
93
4 35
36
130
12
13
60
24
110
1
1
0
P.C.D 145
4 x M8 16
2 x 6 10
2
4
8
45
15.30 150 28.99
197.99
28.99
185
-
0.05
0
260
130
270
-
0
0.05
37
37
31
7
20
10
12
60
24
110
121.50
53.50
130
P.C.D 296
8 x 17.50 貫穿
P.C.D 158
20 xM6x1.0 12
130
0
+0.04
140
4x 17.50 貫穿
P.C.D 338
R18
75
140
140
140
1
4
°
38°
8
43
15.8
2
4
1
1
0
P.C.D 145
4 xM8x1.25 16 2* 9 10
P.C.D 335
150
39°

22. 21
SCSG Series-Harmonic Series With Shaft End
SCSG 20
SCSG 17 57.5X Ø79mm
SCSG 20 67X Ø93mm
SCSG 25 72X Ø107mm
SCSG 32 89.5X Ø138mm
Model
Name
Square
Profile
Ratio
1:50, 1:80,
1:100, 1:120
50
Feature
» Diverse appearance; suitable for robot arm.
» Short axial dimension.
» High rigidity for stable precision work.
» More compact and higher accurate.
» Applied in robot industry, especially for multi-axis Robot joints
Refer Motor
Drawing 1-1
S B A

23. 22
Performance Unit Ratio SCSG17 SCSG20 SCSG25 SCSG32
Nominal Output Torque Kgf*m/Nm
50 2.1/20.58 3.3/32.34 5.2/50.96 10/98
80 2.9/28.42 3.61/35.5 8.30/81.5 15.5/152.5
100 3.1/30.5 5.3/51.94 8.81/86.5 18/176.4
120 3.1/30.5 5.3/51.94 8.81/86.5 18/176.4
Maximum Acceleration Torque Kgf*m/Nm 50/120 3 times nominal output torque
Emergency Stop Torque Kgf*m/Nm
50 9/91 13/127 25/242 51/497
80 12/113 17/165 34/332 75/738
100 15/143 20/191 38/369 86/841
120 11/112 20/191 40/395 91/892
Permissible Input Speed rpm 50/120 3,500
Standard Backlash
Arc-min 50/120 0.33 0.28 0.28 0.23
Arc-sec 50/120 20 17 17 14
Max Tilting moment at flange face Kgf*m / Nm 50/120 5.13/50.27 6.71/65.75 13.7/134.26 27.48/269.3
Maximum radial load Kgf/N 50/120 241/2361 268/2626 442/4331 687/6732
Maximum axial load Kgf/N 50/120 530/2361 590/2626 973/4331 1513/6732
Rated Operation Life hr 50/120 10,000 At permissible input speed and nominal output torque.
Operating Temperature °C 50/120 -10 °C to 40 °C (ambient) / 90 °C (case maximum temp.)
Sound Level dB 50/120 52 53 55 60
Lubrication - 50/120 4B No.2
Ingress Protection Class IP 50/120 IP54
Gearhead Inertia
(Ix10¯⁴kgm²) 50/120 0.079 0.193 0.413 1.69
(Ix10¯⁵kgm²) 50/120 0.081 0.197 0.421 1.72
Weight kg 50/120 0.8 1.3 2 3.5
No Load Running Torque Kgf*m/Nm 50/120 0.9 /0.09 2/0.2 3.1 /0.31 5.7/0.56
» Permissible axial load or permissible radial load is the value that satisfies the reducer life
when either a pure radial load or an axial load is applied to the flange face. (When radial
load is Lr+R=0mm, and axial load is La=0mm)
» We modify our standard gearboxes for customer requirements. Please inquire.
Specification Chart

24. 23
SCSG17
SCSG20
SCSG25
SCSG32
30
8
4 xM4x0.7
P.C.D46
57.50
29
63
h7
-
0
0.03
28.50
63
49.50
79
10
H7
+
0.02
0
9
26
7
8
30
6 xM5x0.8
P.C.D27
8x 4.50
P.C.D71
1
4
5
0
4 x M5x0.8
P.C.D 70 14 x
9 22
P.C.D 82
8 xM6x1.0 12
P.C.D 32
67
93
28 39
72
g7
-
-
0.01
0.04
44
0.50
14
H7
+
0.02
0
8
14
50
32
11
73
86
h7
107
72
0.50
36 29
50
H7
14
10
34
11.80
20
H7
5
0
4 x M5x0.8
P.C.D 70
1
4
8XM8x1.25 15
P.C.D 42
10 xM5x0.8
P.C.D 96
10 x 5.50
P.C.D 96
1 43.50 35 10
89.50
77
113
h7
-
0
0.04
138
104
26
H7
+
0.02
0
14
11
37
1
9
7
0
4 xM6x1.0
P.C.D90
12* 6.60
P.C.D 125
8 xM10x1.5
P.C.D 55
Mechanical dimension

25. 24
SSHG Series-Harmonic Gearbox With Hollow
Shaft Ends
Feature
» Diverse Appearance; suitable for robot arm. Short axial dimension.
» High rigidity for stable precision work. More compact and higher accurate.
» Applied in robot industry, especially for multi-axis Robot joints.
» Hollow Shaft.
D
h7
I J
L M N
C
h7
B
A
h7
E
h7
F
H7
G
H
W-X
P.C.D V
Q-R
P.C.D P
T- U
P.C.D S
K Z
Y
P
3-M3

26. 25
» For 1000 Times max during life of gearhead At permissible input speed and Continuous
Output Torque At input speed of 1000 rpm Efficiency = 85% at permissible input speed
and full load
» Permissible axial load or permissible radial load is the value that satisfies the reducer life
when either a pure radial load or an axial load is applied to the flange face. (When radial
load is Lr+R=0mm, and axial load is La=0mm)
Performance Unit Ratio SSHG17 SSHG20 SSHG25 SSHG32
Nominal Output Torque kgf*m/Nm
50 2.1/20.58 3.3/32.34 5.2/50.96 10/98
80 2.9/28.42 4.4/43.5 8.4/82.32 15.5/152.5
100 3.1/30.5 5.3/51.94 8.8/86.5 18/176.4
120 3.2/31.36 5.3/51.94 8.8/86.5 18/176.4
Maximum Acceleration Torque kgf*m/Nm 50/120 3 times nominal output torque
Emergency Stop Torque kgf*m/Nm
50 9/91 13/127 25/242 51/497
80 12/113 17/165 34/332 75/738
100 15/143 20/191 38/369 86/841
120 11/112 20/191 40/395 91/892
Permissible Input Speed rpm 50/120 3,500
Standard Backlash
Arc-min 50/120 0.33 0.28 0.28 0.23
Arc-sec 50/120 20 17 17 14
Max Tilting moment-at flange face kgf*m / Nm 50/120 9.59/93.98 24.04/235.59 41.19/403.6 67.01/656.6
Maximum Radial Force kgf/N 50/120 320/3136 687/6732 969/9496 1207/11828
Maximum Axial Force kgf/N 50/120 160/1568 343.5/3366 484.5/4748 603.5/5914
Rated Operation Life hr 50/120 10,000 At permissible input speed and nominal output torque.
Operating Temperature °C 50/120 -10 °C to 40 °C (ambient) / 90 °C (case maximum temp.)
Sound Level dB
50/120 52 53 55 60
Lubrication - 50/120 4B No.2
Ingress Protection Class IP 50/120 IP54
Gearhead Inertia
(Ix10¯⁴kgm²) 50/120 0.054 0.09 0.282 1.09
(Ix10¯⁵kgm²) 50/120 0.055 0.092 0.288 1.11
Weight kg 50/120 1 1.38 2.1 4.5
No Load Running Torque kgf*m/Nm 50/120 2.7 /0.26 4.7/0.46 8 /0.79 16/1.58
Specification Chart

27. 26
SSHG17
SSHG25
SSHG20
SSHG32
95
h7
-
0
0.04
50
h7
-
0
0.03
75
h7
-
0
0.03
90
h7
-
0
0.04
10.5 14.5 7
9
30
-
0
0.02
21
H7
+
0.02
0
51.5
5
12xM3
P.C.D 62
12 x
P.C.D84
6 xM3x0.5 6
P.C.D25.5
16 xM3x0.5
12 x 4.50
P.C.D 102
M3x0.5 - 6H 6
55.50
6 6
10.5 15.5 8.50
38
h7
-
0
0.03
60
-
0
0.03
75
110
h7
-
0
0.04
115
h7
-
0
0.04
29
H7
+
0.02
0
29
H7
+
0.02
0
6 xM3x0.5 6
P.C.D 40.5
12* 5.50
P.C.D 132
85
h7
-
0
0.04
115
142
h7
-
0
0.04
147
h7
-
0
0.04
45
h7
-
0
0.03
7 12 20 5
9.5 12
65.50
10 30.50 25
36
H7
+
0.03
0
36
H7
+
0.03
0
16*M5 28.5
5.50 20.5
P.C.D 100
Mechanical dimension

28. SMD Right Angle Gearbox
4 Reasons to Increase 50% Production
GET IN
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SERVO GEARBOX
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2
4
1
3
EXCLUSIVE PRODUCT,
BACKLASH 1 ACR-MIN
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WORKING SPEED & STABILITY
LOW VIBRATION
INCREASE PRODUCTION
EFFICIENCY & QUANTITY
HEADQUARTERS
SMD Gearbox (Taiwan)
No. 339, Taishun Road, Taiping Dist,
Taichung City, Taiwan
+886 (09) 67388376
sales@smdgearbox.com www.smdgearbox.com
A-51, H Block, M.I.D.C, Pimpri-Chinchwad,
Pune-411018, Maharashtra, India
+91 7030669818
HEAD OFFICE (OVERSEAS)
SMD Gearbox (India)