China supplier Suitable for Industrial Robot Medical Equipment Ultra-Thin Series Hmhg Harmonic Precision Reducer Hmhg-14-II-E best automatic gearbox

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


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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.



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

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Application: Machinery, Agricultural Machinery, Car, Robot
Hardness: Hardened Tooth Surface
Installation: Horizontal Type
Layout: Coaxial
Gear Shape: Cylindrical Gear
Step: Single-Step
US$ 220/Piece
1 Piece(Min.Order)

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gear gearbox

How do gear reducers enhance the efficiency of conveyor systems and robotics?

Gear reducers play a significant role in improving the efficiency of both conveyor systems and robotics by optimizing speed, torque, and control. Here's how they contribute:

Conveyor Systems:

In conveyor systems, gear reducers enhance efficiency in the following ways:

  • Speed Control: Gear reducers allow precise control over the rotational speed of conveyor belts, ensuring that materials are transported at the desired speed for efficient production processes.
  • Torque Adjustment: By adjusting gear ratios, gear reducers provide the necessary torque to handle varying loads and prevent overloading, minimizing energy wastage.
  • Reverse Operation: Gear reducers enable smooth bidirectional movement of conveyor belts, facilitating tasks such as loading, unloading, and distribution without the need for additional components.
  • Synchronization: Gear reducers ensure synchronized movement of multiple conveyor belts in complex systems, optimizing material flow and minimizing jams or bottlenecks.


In robotics, gear reducers enhance efficiency through the following means:

  • Precision Movement: Gear reducers provide precise control over the movement of robot joints and arms, enabling accurate positioning and manipulation of objects.
  • Reduced Inertia: Gear reducers help reduce the inertia experienced by robotic components, allowing for quicker and more responsive movements while conserving energy.
  • Compact Design: Gear reducers offer a compact and lightweight solution for achieving various motion profiles in robotic systems, allowing for efficient use of space and resources.
  • Torque Amplification: By amplifying torque from the motor, gear reducers enable robots to handle heavier loads and perform tasks that require greater force, enhancing their overall capabilities.

By providing precise speed control, torque adjustment, and reliable motion transmission, gear reducers optimize the performance of conveyor systems and robotics, leading to improved efficiency, reduced energy consumption, and enhanced operational capabilities.

gear gearbox

Can gear reducers be used for both speed reduction and speed increase?

Yes, gear reducers can be utilized for both speed reduction and speed increase, depending on their design and arrangement. The functionality to either decrease or increase rotational speed is achieved by altering the arrangement of gears within the gearbox.

1. Speed Reduction: In speed reduction applications, a gear reducer is designed with gears of different sizes. The input shaft connects to a larger gear, while the output shaft is connected to a smaller gear. As the input shaft rotates, the larger gear turns the smaller gear, resulting in a decrease in output speed compared to the input speed. This configuration provides higher torque output at a lower speed, making it suitable for applications that require increased force or torque.

2. Speed Increase: For speed increase, the gear arrangement is reversed. The input shaft connects to a smaller gear, while the output shaft is connected to a larger gear. As the input shaft rotates, the smaller gear drives the larger gear, resulting in an increase in output speed compared to the input speed. However, the torque output is lower than that of speed reduction configurations.

By choosing the appropriate gear ratios and arrangement, gear reducers can be customized to meet specific speed and torque requirements for various industrial applications. It's important to select the right type of gear reducer and configure it correctly to achieve the desired speed reduction or speed increase.

gear gearbox

Function of Gear Reducers in Mechanical Systems

A gear reducer, also known as a gear reduction unit or gearbox, is a mechanical device designed to reduce the speed of an input shaft while increasing its torque output. It accomplishes this through the use of a set of interlocking gears with different sizes.

The primary function of a gear reducer in mechanical systems is to:

  • Speed Reduction: The gear reducer takes the high-speed rotation of the input shaft and transmits it to the output shaft through a set of gears. The gears are configured in such a way that the output gear has a larger diameter than the input gear. As a result, the output shaft rotates at a lower speed than the input shaft, but with increased torque.
  • Torque Increase: Due to the size difference between the input and output gears, the torque applied to the output shaft is greater than that of the input shaft. This torque multiplication allows the system to handle heavier loads and perform tasks requiring higher force.

Gear reducers are widely used in various industries and applications where it's necessary to adapt the speed and torque characteristics of a power source to meet the requirements of the driven equipment. They can be found in machinery such as conveyor systems, industrial machinery, vehicles, and more.

China supplier Suitable for Industrial Robot Medical Equipment Ultra-Thin Series Hmhg Harmonic Precision Reducer Hmhg-14-II-E   best automatic gearbox	China supplier Suitable for Industrial Robot Medical Equipment Ultra-Thin Series Hmhg Harmonic Precision Reducer Hmhg-14-II-E   best automatic gearbox
editor by CX 2024-03-26