Product Description
Product Description
The HMHG-II-E series harmonic reducer has a compact machine structure where the input shaft is connected to the inner hole of the wave generator through an integral cam. It can be used with either a rigid wheel end fixed or flexible wheel end output connection mode. Currently available in production specifications ranging from 14 to 40, this series finds its main applications in aerospace, robotics, semiconductors, power inspection, and automation equipment.
Principle of harmonic gear transmission
The harmonic gear drive was invented by the American inventor C.W.Musser in 1955. It is a new transmission mode using the elastic deformation of flexible working components to carry out movement or power transmission. It breaks through the mode of mechanical transmission using rigid components and uses a flexible component to achieve mechanical transmission. Thus, a series of special functions that are difficult to achieve with other drives are obtained. Because the deformation process of the intermediate flexible component is basically a symmetrical harmonic, it is named. In addition to the Soviet Union called this transmission waveform drive or flexible wheel drive, the United States, Britain, Germany, Japan and other countries are called “harmonic drive”.
Harmonic deceleration principle
The deceleration principle of harmonic gear transmission refers to the use of the relative motion of the flexwheel, rigid wheel and wave generator, mainly the controllable elastic deformation of the flexwheel to achieve motion and power transmission. The elliptic CAM in the wave generator rotates in the flexwheel so that the flexwheel deforms. When the flexwheel teeth and rigid wheel teeth at both ends of the long axis of the elliptic CAM of the wave generator are engaged, the flexwheel teeth at both ends of the short axis are detached from the rigid wheel teeth. The teeth between the long axis and the short axis of the wave generator are in a semi-meshing state that gradually enters the snapping along different sections of the perimeter of the flexwheel and the rigid wheel, which is called the snapping; In a semi-meshing state that gradually withdraws from engagement, it is called snapping out. When the wave generator continuously rotates, the flexwheel constantly deforms, so that the 2 wheel teeth in the biting, meshing, biting out and disengaging 4 kinds of motion constantly change their original working state, resulting in the wrong tooth movement, to achieve the active wave generator to the flexwheel movement transmission.
Product Parameters
| Model | Reduction ratio | Rated torque at input 2000r/min | Permissible CHINAMFG torque at start/ stop | Permissible max.value of ave.load torque | instantaneous permissible max. torque | Permissibie max.input rotational speed | Permissible ave.input rotational speed | Backlash(arc sec) | Transmission accuracy(arc sec) |
| Nm | Nm | Nm | Nm | r/min | r/min | ≤ | ≤ | ||
| 14 | 50 | 7 | 23 | 9 | 46 | 8000 | 3500 | 20 | 90 |
| 80 | 10 | 30 | 14 | 51 | 20 | 90 | |||
| 100 | 10 | 36 | 14 | 70 | 10 | 90 | |||
| 17 | 50 | 21 | 44 | 34 | 91 | 7000 | 3500 | 20 | 90 |
| 80 | 29 | 56 | 35 | 113 | 20 | 90 | |||
| 100 | 31 | 70 | 51 | 143 | 10 | 90 | |||
| 20 | 50 | 33 | 73 | 44 | 127 | 6000 | 3500 | 20 | 60 |
| 80 | 44 | 96 | 61 | 165 | 20 | 60 | |||
| 100 | 52 | 107 | 64 | 191 | 10 | 60 | |||
| 120 | 52 | 113 | 64 | 161 | 10 | 60 | |||
| 25 | 50 | 51 | 127 | 72 | 242 | 5500 | 3500 | 20 | 60 |
| 80 | 82 | 178 | 113 | 332 | 20 | 60 | |||
| 100 | 87 | 204 | 140 | 369 | 10 | 60 | |||
| 120 | 87 | 217 | 140 | 395 | 10 | 60 | |||
| 32 | 50 | 99 | 281 | 140 | 497 | 4500 | 3500 | 20 | 60 |
| 80 | 153 | 395 | 217 | 738 | 10 | 60 | |||
| 100 | 178 | 433 | 281 | 841 | 10 | 60 | |||
| 120 | 178 | 459 | 281 | 892 | 10 | 60 | |||
| 40 | 50 | 178 | 523 | 255 | 892 | 4000 | 3000 | 10 | 60 |
| 80 | 268 | 675 | 369 | 1270 | 10 | 60 | |||
| 100 | 345 | 738 | 484 | 1400 | 10 | 60 | |||
| 120 | 382 | 802 | 586 | 1530 | 10 | 60 |
Detailed Photos
Company Profile
HangZhou Yijiaang Automation Technology Co., Ltd. was established in 2018, specializing in the application development, sales and technical services of transmission components. Main business: planetary reducer, harmonic reducer, RV reducer, DD motor, linear motor, linear module, rotary spline screw, hollow rotary platform, CAM splitter and other products. Widely used in: CNC machine tools, packaging machinery, printing machinery, automation equipment, joint robots, medical equipment, AGV and many other fields. The company regards “providing quality products and services” as its due responsibility.
The company adheres to the spirit of technological innovation and customer service, with a positive attitude of continuous endeavour, creates the value of “quality is the core”, establishes the goal of “professional perfection”, and achieves the corporate vision of “making the world move”. Focus on transmission products technical services.
FAQ
Q: What should I provide when I choose gearbox/speed reducer?
A: The best way is to provide the motor drawing with parameter. Our engineer will check and recommend the most suitable gearbox model for your refer.
Or you can also provide below specification as well:
1) Type, model and torque.
2) Ratio or output speed
3) Working condition and connection method
4) Input mode and input speed
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Application: | Machinery, Agricultural Machinery, Car, Robot |
|---|---|
| Hardness: | Hardened Tooth Surface |
| Installation: | Horizontal Type |
| Layout: | Coaxial |
| Gear Shape: | Cylindrical Gear |
| Step: | Single-Step |
| Samples: |
US$ 220/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|

How do gear reducers contribute to energy efficiency in machinery and equipment?
Gear reducers play a significant role in enhancing energy efficiency in various machinery and equipment. Here’s how they contribute:
1. Speed Reduction: Gear reducers are commonly used to reduce the speed of the input shaft, allowing the motor to operate at a higher speed where it’s most efficient. This speed reduction helps match the motor’s optimal operating range, reducing energy consumption.
2. Torque Increase: Gear reducers can increase torque output while decreasing speed, enabling machinery to handle higher loads without the need for a larger, more energy-intensive motor.
3. Matching Load Requirements: By adjusting gear ratios, gear reducers ensure that the machinery’s output speed and torque match the load requirements. This prevents the motor from operating at unnecessary high speeds, saving energy.
4. Variable Speed Applications: In applications requiring variable speeds, gear reducers allow for efficient speed control without the need for continuous motor adjustments, improving energy usage.
5. Efficient Power Transmission: Gear reducers efficiently transmit power from the motor to the load, minimizing energy losses due to friction and inefficiencies.
6. Motor Downsizing: Gear reducers enable the use of smaller, more energy-efficient motors by converting their higher speed, lower torque output into the lower speed, higher torque needed for the application.
7. Decoupling Motor and Load Speeds: In cases where the motor and load speeds are inherently different, gear reducers ensure the motor operates at its most efficient speed while still delivering the required output to the load.
8. Overcoming Inertia: Gear reducers help overcome the inertia of heavy loads, making it easier for motors to start and stop, reducing energy consumption during frequent operation.
9. Precise Control: Gear reducers provide precise control over speed and torque, optimizing the energy consumption of machinery in processes that require accurate adjustments.
10. Regenerative Braking: In some applications, gear reducers can be used to capture and convert kinetic energy back into electrical energy during braking or deceleration, improving overall energy efficiency.
By efficiently managing speed, torque, and power transmission, gear reducers contribute to energy-efficient operation, reducing energy consumption, and minimizing the environmental impact of machinery and equipment.

What factors should be considered when selecting the right gear reducer?
Choosing the appropriate gear reducer involves considering several crucial factors to ensure optimal performance and efficiency for your specific application:
- 1. Torque and Power Requirements: Determine the amount of torque and power your machinery needs for its operation.
- 2. Speed Ratio: Calculate the required speed reduction or increase to match the input and output speeds.
- 3. Gear Type: Select the appropriate gear type (helical, bevel, worm, planetary, etc.) based on your application’s torque, precision, and efficiency requirements.
- 4. Mounting Options: Consider the available space and the mounting configuration that suits your machinery.
- 5. Environmental Conditions: Evaluate factors such as temperature, humidity, dust, and corrosive elements that may impact the gear reducer’s performance.
- 6. Efficiency: Assess the gear reducer’s efficiency to minimize power losses and improve overall system performance.
- 7. Backlash: Consider the acceptable level of backlash or play between gear teeth, which can affect precision.
- 8. Maintenance Requirements: Determine the maintenance intervals and procedures necessary for reliable operation.
- 9. Noise and Vibration: Evaluate noise and vibration levels to ensure they meet your machinery’s requirements.
- 10. Cost: Compare the initial cost and long-term value of different gear reducer options.
By carefully assessing these factors and consulting with gear reducer manufacturers, engineers and industry professionals can make informed decisions to select the right gear reducer for their specific application, optimizing performance, longevity, and cost-effectiveness.

Can you explain the different types of gear reducers available in the market?
There are several types of gear reducers commonly used in industrial applications:
1. Spur Gear Reducers: These reducers have straight teeth and are cost-effective for applications requiring moderate torque and speed reduction. They are efficient but may produce more noise compared to other types.
2. Helical Gear Reducers: Helical gears have angled teeth, which provide smoother and quieter operation compared to spur gears. They offer higher torque capacities and are suitable for heavy-duty applications.
3. Bevel Gear Reducers: Bevel gears have conical shapes and intersect at an angle, allowing them to transmit power between non-parallel shafts. They are commonly used in applications where shafts intersect at 90 degrees.
4. Worm Gear Reducers: Worm gears consist of a worm (screw) and a mating gear (worm wheel). They offer high torque reduction and are used for applications requiring high ratios, although they can be less efficient.
5. Planetary Gear Reducers: These reducers use a system of planetary gears to achieve high torque output in a compact design. They provide excellent torque multiplication and are commonly used in robotics and automation.
6. Cycloidal Gear Reducers: Cycloidal drives use an eccentric cam to achieve speed reduction. They offer high shock load resistance and are suitable for applications with frequent starting and stopping.
7. Harmonic Drive Reducers: Harmonic drives use a flexible spline to achieve high gear reduction ratios. They provide high precision and are commonly used in applications requiring accurate positioning.
8. Hypoid Gear Reducers: Hypoid gears have helical teeth and non-intersecting shafts, making them suitable for applications with space limitations. They offer high torque and efficiency.
Each type of gear reducer has its own advantages and limitations, and the choice depends on factors such as torque requirements, speed ratios, noise levels, space constraints, and application-specific needs.


editor by CX 2024-03-27