LHD Shorten Thin Harmonic Gearbox
LHD series features a flex spline with a flanged ultra-short tube structure. The axial length is reduced by 50% in the LHD-I model and by 15% in the LHD-III model.
Key Features
- Flanging ultra-short tube structure
- Versatile output configuration
- Axial length reduction
- Product Description
- Specifications
- Application
- FAQ
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Product Description
The LHD series features a flanged ultra-short barrel structure, offering flexibility in installation: it can be fixed at either end, rigid or flexible, for output connection.
The design of LHD-I has achieved the ultimate in flatness, boasting a compact and lightweight build, making it highly suitable for applications demanding strict thickness requirements for reducers. On the other hand, the LHD-III is tailored for applications requiring threading through the center of the reducer and stringent thickness specifications.
Advantages
LHD-I (Unit Type):
Compact and Simple Design: Designed with a compact and simple layout for easy integration.
Small Size and Lightweight: Offers a small footprint and reduced weight for space-constrained applications.
High Torque Capacity: Capable of handling high torque loads efficiently.
High Rigidity: Ensures stability and precision in operation.
Coaxial Input and Output: Provides excellent positioning and rotation accuracy.
LHD-III (Hollow Type):
Ultra-Thin Shape with Hollow Flange Structure: Features an ultra-thin design with a hollow flange structure, ideal for applications requiring wire threading through the center of the gearbox.
Suitable for Strict Thickness Requirements: Designed to meet strict thickness requirements for harmonic drive applications.
Specifications
Specification of LHD Rated parameters
| 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 | Permissible average input rotational speed | Backlash | Weight | Design life |
|---|---|---|---|---|---|---|---|---|---|---|
| Grease | Grease | |||||||||
| Nm | Nm | Nm | Nm | r/min | r/min | Arc Sec | Kg | Hour | ||
| 14 | 50 | 3.7 | 12 | 4.8 | 23 | 8500 | 3500 | ≤20 | LHD-I:0.34 | 9000 |
| 80 | 5.4 | 16 | 7.7 | 35 | LHD-III:0.64 | 10000 | ||||
| 100 | 5.4 | 19 | 7.7 | 35 | 10000 | |||||
| 17 | 50 | 11 | 23 | 18 | 48 | 7300 | 3500 | ≤20 | LHD-I:0.42 | 9000 |
| 80 | 15 | 29 | 19 | 61 | LHD-III:0.87 | 10000 | ||||
| 100 | 16 | 37 | 27 | 71 | 10000 | |||||
| 20 | 50 | 17 | 39 | 24 | 69 | 6500 | 3500 | ≤20 | LHD-I:0.54 | 9000 |
| 80 | 24 | 51 | 33 | 89 | LHD-III:1.14 | 10000 | ||||
| 100 | 28 | 57 | 34 | 95 | 10000 | |||||
| 25 | 50 | 27 | 69 | 38 | 127 | 5600 | 3500 | ≤20 | LHD-I:0.95 | 9000 |
| 80 | 44 | 96 | 60 | 179 | LHD-III:1.75 | 10000 | ||||
| 100 | 47 | 110 | 75 | 184 | 10000 | |||||
| 32 | 50 | 53 | 151 | 75 | 268 | 4000 | 3000 | ≤20 | LHD-I:1.90 | 9000 |
| 80 | 83 | 213 | 117 | 398 | LHD-III:3.56 | 10000 | ||||
| 100 | 96 | 233 | 151 | 420 | 10000 |
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What is a harmonic drive box?
+A harmonic drive box is a type of gear system that produces high reduction ratios in a compact size. It uses the mechanics of a flexible element deforming to transmit motion and achieve high precision and torque.
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How does a harmonic gear box work?
+A harmonic gear box works by using a circular spline, flexspline, and a wave generator. The wave generator deforms the flexspline into an elliptical shape, which then engages with the teeth of the circular spline at two points, providing a high reduction ratio through the difference in tooth count between the engaged elements.
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What are the main components of a strain wave drive?
+The main components are the circular spline (fixed outer ring), the flexspline (flexible inner ring with fewer teeth), and the wave generator (an elliptical disc that fits inside the flexspline).
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What are the advantages of using harmonic/harmonic drive boxes?
+Strain wave/harmonic gearboxes offer high precision, zero backlashes, high torque capacity, compact size, and lightweight. They are also known for their excellent positional accuracy and repeatability.
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What applications are harmonic-type drives used in?
+They are used in applications requiring high precision and reliability, such as robotics, aerospace, defense, medical equipment, and semiconductor manufacturing equipment.
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How do you select a strain wave drive for a specific application?
+Selection depends on factors like torque requirements, desired reduction ratio, space constraints, load capacity, and environmental conditions. It's essential to consult with manufacturers or experts to choose the appropriate model.
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What are the different types of Harmonic Driveboxes?
+Circular Spline Gearboxes
Cup-Type Gearboxes
Flat Gearboxes
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What is a Circular Spline?
+The Circular Spline in Strain Wave Gearboxes are characterized by their robust design.
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