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SYHG-Ⅳ Series Harmonic Drive

SYHG-Ⅳ Series Harmonic Drive
Integrated Input Shaft | Versatile Drive Options | Fully Sealed

Product Overview
The SYHG-Ⅳ Series features a hollow, flanged, standard-structure flexspline. The wave generator cam comes with an integrated input shaft, and internal support bearings are built into the reducer. The fully sealed structure ensures easy installation — making this series ideal for applications requiring bevel gear or synchronous belt drive connections at the input side.

Key Features

Versatile Input Configurations
The integrated input shaft readily accommodates bevel gears, synchronous pulleys, or other drive components for flexible system design.
Compact & Clean Design
Streamlined construction reduces overall system complexity.
Fully Sealed Structure
Protects internal components from contaminants, enhancing reliability in demanding environments.
Internal Support Bearings
Built-in bearings eliminate the need for external support, simplifying mounting.
Zero Backlash
Gear engagement without backlash eliminates lost motion and improves control response.
Coaxial Input & Output
Maintains drivetrain simplicity and saves installation space.
High Positioning & Rotational Accuracy
Delivers excellent angular precision and repeatability for precision motion control.

Typical Applications

Humanoid Robots – Compact actuation for dexterous joints
Metal Working Machine Tools – High-precision rotary axes
Industrial Robots & Collaborative Robots (Cobots) – Reliable joint actuation
SCARA Robots – Smooth, backlash-free transmission
Medical Equipment – Precise, reliable motion for surgical and diagnostic devices
Aerospace – Robust performance under demanding conditions

Dimensional Drawings

Specifications & Performance

Model	Reduction ratio	Rated torque@2000r/min(N·m)	Start-Stop Allowable Peak Torque(N·m)	Max Allowable Avg Load Torque(N·m)	Instantaneous Max Allowable Torque(N·m)	Max Allowable Input Speed(r/min)	Allowable Avg Input Speed(r/min)	Backlash≤(arcsec)	Transmission Accuracy≤(arcsec)
14	50	7	23	9	46	8000	3500	20	90
14	80	10	30	14	51	8000	3500	20	90
14	100	10	36	14	70	8000	3500	10	90
17	50	21	44	34	91	7000	3500	20	90
17	80	29	56	35	113	7000	3500	20	90
17	100	31	70	51	143	7000	3500	10	90
20	50	33	73	44	127	6000	3500	20	60
20	80	44	96	61	165	6000	3500	20	60
20	100	52	107	64	191	6000	3500	10	60
20	120	52	113	64	161	6000	3500	10	60
25	50	51	127	72	242	5500	3500	20	60
25	80	82	178	113	332	5500	3500	20	60
25	100	87	204	140	369	5500	3500	10	60
25	120	87	217	140	395	5500	3500	10	60
32	50	99	281	140	497	4500	3500	20	60
32	80	153	395	217	738	4500	3500	10	60
32	100	178	433	281	841	4500	3500	10	60
32	120	178	459	281	892	4500	3500	10	60
40	50	178	523	255	892	4000	3000	10	60
40	80	268	675	369	1270	4000	3000	10	60
40	100	345	738	484	1400	4000	3000	10	60
40	120	382	802	586	1530	4000	3000	10	60

SYHG-Ⅳ Series Harmonic Drive

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Categories	SYHG series
Ratio:	50/80/100/120/160
Certification:	CE ROHS
Brand Name:	SENINTER
Place of Origin:	CHINA
Model Number:	SYHG-Ⅳ Series