High Accuracy Miniature Strain Wave Reducer
Product Description
The model 8 and model 11 harmonic drive of LS and LH series are
known as the mini-shaped strain wave reducer.
LS And LH series miniature strain wave reducers provide high
positioning accuracy in a very compact package.
These mini strain wave gears harmonic drive are well suited for
semiconductor and robotics applications, especially end of arm axes
for small industrial and collaborative robots, industrial machinery
where weight is a critical factor.
How it Works
The Flexspline is slightly smaller in diameter and has two fewer
teeth than the Circular Spline. The elliptical shape of the Wave
Generator causes the teeth of the Flexspline to engage the Circular
Spline at two opposite regions across the major axis of the
ellipse. For every 180 degree clockwise rotation of the Wave
Generator the Flexspline teeth are advanced counterclockwise by one
tooth in relation to the Circular Spline. Each complete clockwise
rotation of the Wave Generator results in the Flexspline moving
counter-clockwise by two teeth from its original position relative
to the Circular Spline.
Key Features
Ultra-Flat Design The Miniature series offers an ultra-flat harmonic drive design,
ensuring compatibility with space-constrained applications.
Lightweight Construction Designed with lightweight materials, the Miniature series minimizes overall weight without compromising performance.
Compact Size With a small form factor, the Miniature series harmonic drive is ideal for applications where size
constraints are a concern.
High-Rigidity Cross Roller Bearing Utilizing high-rigidity cross-roller bearings, the Miniature series ensures smooth and precise motion control, enhancing overall
performance.
Highest Input Characteristics The integrated strain wave reducer, combined with a
high-performance small motor, provides the Miniature series with the highest input characteristics under the same gear
conditions, ensuring optimal efficiency and reliability.
Parameters Table of Miniature Harmonic Drive
| Model | Reduction ratio | Rated torque at 2000r/min input | Permissible peak torque at start and stop | Permissible maximum value for average load torque | Permissible maximum momentary torque | Permissible maximum input rotational speed
(Grease) | Permissible average input rotational speed
(Grease) | Backlash | Weight | Design life |
|
| Nm | kgfm | Nm | kgfm | Nm | kgfm | Nm | kgfm | r/min | r/min | Arc Sec | kg | Hour |
| 8 | 50 | 1.8 | 0.18 | 3.3 | 0.34 | 2.3 | 0.23 | 6.6 | 0.67 | 8500 | 3500 | ≤40 | 0.06 | 10000 |
| 100 | 2.4 | 0.24 | 4.8 | 0.49 | 3.3 | 0.34 | 9 | 0.92 | 10000 |
| 11 | 50 | 3.5 | 0.36 | 8.3 | 0.85 | 5.5 | 0.56 | 17 | 1.73 | 8500 | 3500 | ≤30 | 0.27 | 10000 |
| 80 | 4.5 | 0.46 | 9.9 | 1.01 | 8 | 0.82 | 22.5 | 2.3 | 10000 |
| 100 | 5 | 0.51 | 11 | 1.12 | 8.9 | 0.91 | 25 | 2.55 | 10000 |
| Key Attributes of LS and LH Series Miniature Strain Wave Reducer |
| Product | Mini Strain Wave Reducer Harmonic Drive |
| Steel, Aluminum, Polyurethane, Bearings and Seals, Lubricants |
Reduction Ratio | 50, 80, 100 |
| Less than 30 Arc Sec |
Average Input Speed | 3500 r/min |
| 8500 r/min |
Design Life | 10000 hours |
| 8, 11 |
Weight | 0.06 to 0.27 kg |
| Warranty | 1 year |
Applications
 |  |  |
| Manufacturing Systems | Aerospaces | Huamnoid Robots |
