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Quality SYHG-Ⅲ Series Harmonic Drive factory
Quality SYHG-Ⅲ Series Harmonic Drive factory

SYHG-Ⅲ Series Harmonic Drive

Basic Properties
Place of Origin: CHINA
Brand Name: SENINTER
Certification: CE ROHS
Model Number: SYHG-Ⅲ Series
Product Summary
SYHG-Ⅲ Series Harmonic DriveLarge Hollow Shaft | Crossed Roller Bearing | Easy Custom Integration Product OverviewThe SYHG-Ⅲ Series features a hollow, flanged, standard-structure flexspline with a compact overall design. The wave generator incorporates a large-diameter hollow shaft and an integrated ...

Product Details

Ratio: 50/80/100/120/160
Product Description



SYHG-Ⅲ Series Harmonic Drive
Large Hollow Shaft | Crossed Roller Bearing | Easy Custom Integration

Product Overview
The SYHG-Ⅲ Series features a hollow, flanged, standard-structure flexspline with a compact overall design. The wave generator incorporates a large-diameter hollow shaft and an integrated crossed roller bearing to support both radial and axial loads. This simplified structural design makes it easy for users to customize installation according to specific application requirements.


 SYHG-Ⅲ Series Harmonic Drive


Key Features

  • Easy Installation & User-Friendly Design
    Simplified structure allows quick integration and flexible customization.

  • Compact & Clean Design
    Space-saving construction reduces system complexity.

  • Large-Diameter Hollow Shaft
    Provides ample space for centralized cabling, pneumatic lines, or other feed-through requirements.

  • Integrated Crossed Roller Bearing
    Built-in bearing supports both radial and axial loads, eliminating the need for external support bearings.

  • 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 demanding motion control tasks.

Typical Applications
Ideal for robotic joints, rotary actuators, precision positioning systems, and automation equipment requiring a large hollow passage for cables or hoses, with simplified mounting and built-in load support.


 SYHG-Ⅲ Series Harmonic Drive


Dimensional Drawings

SYHG-Ⅲ Series Harmonic Drive


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


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