SYHD-Ill series performance parameter
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Simple combination type ( super flat hollow shaft )
SYHD-III series is the type pursuing flat structure to the extreme.
Its axial length is half of that of SYHS series.
The flexspline adopts ultrathin hollow flanging structure and its output side is installed with high rigid crossed roller bearing.
Suitable for the application with requirement on flat design.
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Typical Applications
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Humanoid Robots – Compact actuation for dexterous joints
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Metal Working Machine Tools – High-precision rotary axes
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Industrial Robots & Collaborative Robots (Cobots) – Reliable joint actuation
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SCARA Robots – Smooth, backlash-free transmission
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Medical Equipment – Precise, reliable motion for surgical and diagnostic devices
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Aerospace – Robust performance under demanding conditions
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Dimensional Drawings

SYHD‑II Series Performance Parameters
| Model |
Reduction Ratio |
Rated torque at input 2000r/min (Nm) |
Permissible peak torque at start/stop (Nm) |
Permissible max. value of ave.load torque (Nm) |
Instantaneous permissible max. torque (Nm) |
Permissible max. input rotational speed (r/min) |
Permissible ave. input rotational speed (r/min) |
Backlash (arc sec) ≤ |
Transmission accuracy (arc sec) ≤ |
| 14 |
50 |
3.5 |
11.4 |
4.6 |
23 |
8000 |
3500 |
20 |
90 |
| 14 |
80 |
5.1 |
15 |
6.2 |
29 |
8000 |
3500 |
20 |
90 |
| 14 |
100 |
5.1 |
18 |
7 |
33 |
8000 |
3500 |
20 |
90 |
| 17 |
50 |
10.5 |
22 |
17 |
46 |
7000 |
3500 |
20 |
90 |
| 17 |
80 |
14 |
29 |
21 |
54 |
7000 |
3500 |
20 |
90 |
| 17 |
100 |
15 |
35 |
26 |
67 |
7000 |
3500 |
20 |
90 |
| 20 |
50 |
16 |
37 |
23 |
66 |
6000 |
3500 |
20 |
90 |
| 20 |
80 |
23 |
49 |
28 |
78 |
6000 |
3500 |
10 |
90 |
| 20 |
100 |
27 |
54 |
32 |
90 |
6000 |
3500 |
10 |
90 |
| 25 |
50 |
26 |
66 |
36 |
121 |
5500 |
3500 |
20 |
60 |
| 25 |
80 |
42 |
91 |
62 |
157 |
5500 |
3500 |
10 |
60 |
| 25 |
100 |
45 |
105 |
71 |
175 |
5500 |
3500 |
10 |
60 |
| 32 |
50 |
50 |
143 |
71 |
255 |
4500 |
3500 |
20 |
60 |
| 32 |
80 |
79 |
202 |
126 |
350 |
4500 |
3500 |
10 |
60 |
| 32 |
100 |
91 |
221 |
143 |
399 |
4500 |
3500 |
10 |
60 |