High Precision Harmonic Drive Strain Wave Gear For Industrial Robots
Brand Name:Giant Precision
Certification:ISO9001
Model Number:Model 8, Model 11
Minimum Order Quantity:1 set
Delivery Time:3-4 Weeks
Payment Terms:T/T
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Suzhou Jiangsu China
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4th Floor, Jinjie Science and Technology Park, No. 1 Huian Road, Wuzhong District, Suzhou City, Jiangsu Province, China
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Product Details
High Precision Harmonic Drive Strain Wave Gear
Product Description
Strain wave gearing (also known as harmonic drive gearing) is a
type of mechanical gear system that uses a flexible spline with
external teeth, which is deformed by a rotating elliptical plug to
engage with the internal gear teeth of an outer spline.
Strain wave gearing has some advantages over traditional gearing
systems such as helical or planetary gears, including:
- no backlash
- compactness and light weight,
- high gear ratios
- reconfigurable ratios within a standard housing
- good resolution and excellent repeatability (linear representation) when repositioning inertial loads
- high torque capability
- coaxial input and output shafts
High gear reduction ratios are possible in a small volume (a ratio
from 30:1 up to 320:1 is possible in the same space in which
planetary gears typically only produce a 10:1 ratio).
Disadvantages include a tendency for 'wind-up' (a torsional spring
rate) in the low torque region.
Strain wave gearing is commonly used in robotics and aerospace. It
can provide gear reduction but may also be used to increase
rotational speed[citation needed], or for differential gearing.
Key Features
- Cup-shaped structure, high torque capacity, high stiffness, standard barrel structure with high rigidity full roller cross bearings and long lifespan.
- LS tooth profile design, self-developed CMP heat treatment process, 1um track precision grinding, providing higher rigidity, precision, and torque.
- Compact and concise design with zero backlash, direct motor connection for convenient installation.
- Input and output coaxial.
- Excellent positional accuracy and repeatability.
Rated 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 | ||
Material | Steel, Aluminum, Polyurethane, Bearings and Seals, Lubricants | ||
Reduction Ratio | 50, 80, 100 | ||
Backlash | Less than 30 Arc Sec | ||
Average Input Speed | 3500 r/min | ||
Max Input Speed | 8500 r/min | ||
Design Life | 10000 hours | ||
Model | 8, 11 | ||
Weight | 0.06 to 0.27 kg | ||
| Warranty | 1 year | ||
Application
| CNC Machines | Aerospaces | Industrial Robots |
FAQ
1. 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.
2. How does a harmonic drive 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.
3. Can a harmonic drive be backdriven?
Yes the harmonic drive gear can be driven back. By the way, this happens in every typical robotic cycle hundreds of times every day: Every time when the axis is in motion and slowed down rapidly, the load inertia on the gear output side drives back the gear (in a controlled manner, determined by motor and controller).
4. What does a harmonic drive do?
Hamornic drives are used in increasing the output torque in gears used in milling, in manufacturing, and in machines that use robotic arms.
5. Do you support customizing a harmonic drive do?
Yes of course. We can customize a harmonic drive based on customer's specific requirements and drawing.
6. What's the biggest advantage of your products?
We can provide complete product series, and the qualty of our harmonic drive is stable. The most important is the highest cost-effective in China.
High Precision Harmonic Drive Strain Wave Gear For Industrial Robots
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