China Professional Ultra-Thin Gear Reducer Model 14-40 planetary gearbox

Product Description

Product Description

HMHG-II-E Series Harmonic Reducer

HMHG-II-E Series Harmonic Reducer

The HMGH-II-E series harmonic reducer features a compact machine structure with an input shaft connected to the inner hole of the wave generator through an integral cam. It offers the flexibility of both rigid wheel end fixed and flexible wheel end output connection modes. Available in production specifications ranging from 14 to 40, this series is ideal for applications in aerospace, robotics, semiconductors, power inspection, and automation equipment.

Principle of Harmonic Gear Transmission

The harmonic gear drive, invented by C.W. Musser in 1955, utilizes the elastic deformation of flexible components for movement and power transmission. By breaking through traditional mechanical transmission modes, this drive achieves unique functions difficult to replicate with other methods. The deformation process of the flexible component is symmetrical and harmonic, hence the name. Known as “harmonic drive” in various countries, this transmission mode offers unparalleled capabilities.

Harmonic Deceleration Principle

The deceleration principle of harmonic gear transmission involves the controlled elastic deformation of the flexwheel, rigid wheel, and wave generator to achieve motion and power transmission. Through the rotation of the elliptic CAM in the wave generator, the flexwheel deforms, enabling continuous motion transmission. The interaction between the flexwheel and rigid wheel teeth results in a dynamic movement pattern, allowing for efficient power transmission.

For more information, contact HangZhou Yijiaang Automation Technology Co., Ltd.


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


Welcome to HangZhou Yijiaang Automation Technology Co., Ltd

Established in 2018, we specialize in transmission components including planetary reducers, harmonic reducers, RV reducers, DD motors, linear motors, and more. Our products are widely used in CNC machine tools, packaging machinery, automation equipment, and medical equipment.

At HangZhou Yijiaang, we are committed to providing quality products and services. With a focus on technological innovation and customer service, we strive to create value through our dedication to excellence.

Join us in our mission to make the world move with our top-notch transmission products and technical services.



Product Description

Welcome to HangZhou Yijiaang Automation Technology Co., Ltd

Choosing the Right Gearbox/Speed Reducer

When selecting a gearbox or speed reducer, providing the motor drawing with parameters is the best way to ensure compatibility. Our engineers will carefully review the information and recommend the most suitable gearbox model for your needs.

Alternatively, you can also provide the following specifications:

  1. Type, model, and torque
  2. Ratio or output speed
  3. Working condition and connection method
  4. Input mode and input speed

At HangZhou Yijiaang Automation Technology Co., Ltd, we are dedicated to helping you find the perfect gearbox or speed reducer for your application. Contact us today for expert guidance and top-quality products.

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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 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.

gear gearbox

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.

gear gearbox

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.

China Professional Ultra-Thin Gear Reducer Model 14-40   planetary gearbox	China Professional Ultra-Thin Gear Reducer Model 14-40   planetary gearbox
editor by CX 2024-04-17