China wholesaler Planetary Gear Unit Used for Arm Hole Mining Chain Saws worm gear motor
Product Description
Product Description
SGR planetary gear motor
Technical data:
1. Ratio range: 8.1-191
2. Input power: 0.12-270 KW
3. Permit torque rang: ≤ 50000 N. M
4. Output speed: 0.3~205 r/min
5. Structure: Foot-mounted, flange-mounted, shaft-mounted
| Input structure | motor,IEC flange |
| Output speed | motor,IEC flange,input shaft |
| solid shaft, hollow shaft with key,with shrink disk |
Characteristic:
1. Adopt optimized design, module combination, right angle output, space reduction
2. High strength and longevity gears
3. Can be combined with various motors, wider ratio range
4. Big output torque, smoothly startup, high efficiency
Production pictures:
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FAQ:
1.Are you a factory or trader ?
We are a professional factory which has 20 years history specialized in gear transmission .
2.MOQ:
Our MOQ is 1 pcs. However there is 1 handling cost $150 for the single order which less than $3000.00
3. Warranty
Our warranty is 12months
4. Payment term
100% T/T in advance and LC at sight .
5. Do you accept customization ?
YES. CHINAMFG have strong R&D team , we can provide customizable service according to requirements.
6. Packing
Generally we use standard export plywood case to arrange the shipment .
7. Delivery time
In normal ,time of delivery is 30days after receiving the prepayment .
8. What kinds of certification do you use ?
DNV-ISO9001:2008, SGS,CE etc, And new products patent.
9. What kinds of inspection you do before shipment ?
We do temperature test, noise, and oil leak inspection and commissioning before shipment.
10.How do you solve if the production have problem ?
Mostly, we don ‘ t need customer send the goods back to us. Because the cost is very high, if there meets a problem,we firstly ask for the pictures for damaged parts. And base on the pictures, we can have a basic idea for the defect reason. Our guarantee is 12 months, if during the guarantee, we can supply repair .
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| Application: | Motor, Machinery |
|---|---|
| Function: | Distribution Power, Change Drive Torque, Speed Reduction |
| Layout: | Coaxial |
| Hardness: | Hardened Tooth Surface |
| Installation: | Vertical Type |
| Step: | Single-Step |
| Samples: |
US$ 200/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|

What is the significance of the gear ratio in planetary gear arrangements?
The gear ratio plays a significant role in planetary gear arrangements, offering several key advantages and applications. Let’s explore the significance of the gear ratio:
- Speed Control:
The gear ratio in planetary gear arrangements allows for precise speed control. By adjusting the sizes and numbers of teeth on the sun gear, planet gears, and ring gear, different gear ratios can be achieved. The gear ratio determines the relationship between the input speed and the output speed. By changing the gear ratio, the speed of the output shaft can be increased or decreased relative to the input speed. This speed control capability is crucial in various applications, such as automotive transmissions, industrial machinery, and robotics, where specific speed requirements are necessary for optimal performance.
- Torque Amplification:
The gear ratio also enables torque amplification in planetary gear arrangements. By fixing the ring gear and inputting power to the sun gear, the planet gears rotate and contribute to multiplying the torque. The gear ratio determines the extent of torque amplification. This torque amplification feature is beneficial in applications that require higher torque output while maintaining a smaller physical size. It allows for increased torque transmission without the need for larger and heavier gear systems.
- Multiple Speeds:
Another significance of the gear ratio is the ability to achieve multiple speeds within a single gear system. Planetary gears offer the advantage of having multiple gear sets within a compact arrangement. By combining different gear ratios using various combinations of sun gears, planet gears, and ring gears, it is possible to obtain multiple output speeds. This versatility is useful in applications that require variable speed control or the ability to switch between different operational modes.
- Power Distribution:
The gear ratio also influences power distribution in planetary gear arrangements. As torque is transmitted through the gears, the gear ratio determines how the power is distributed among the different components. By adjusting the gear ratio, it is possible to distribute power more evenly or concentrate it on specific gear elements. This power distribution capability allows for optimized performance and load-sharing in the gear system.
- Efficiency and Mechanical Advantage:
The gear ratio affects the efficiency and mechanical advantage of planetary gear arrangements. The gear ratio determines the trade-off between speed and torque. Increasing the gear ratio results in higher torque output but lower speed, while decreasing the gear ratio yields higher speed but lower torque. By selecting the appropriate gear ratio, it is possible to achieve the desired balance between speed and torque while maximizing the overall efficiency of the system.
In summary, the gear ratio in planetary gear arrangements is significant for speed control, torque amplification, achieving multiple speeds, power distribution, efficiency, and mechanical advantage. Understanding and selecting the appropriate gear ratio is crucial for optimizing performance and meeting the specific requirements of different mechanical setups.

Can planetary gears be used in robotics and automation?
Planetary gears are commonly used in robotics and automation due to their numerous advantages and suitability for various applications. Let’s explore how planetary gears are utilized in robotics and automation:
- Compact Size and High Power Density:
Planetary gears offer a high power density, meaning they can transmit significant torque in a compact size. This characteristic is particularly valuable in robotics and automation systems, where space is often limited. The compactness of planetary gears allows for efficient integration into robotic joints, gearboxes, and other motion control components.
- Precision and Repeatability:
Planetary gears provide high precision and repeatability, making them suitable for precise positioning and motion control tasks in robotics and automation. The gear design and arrangement contribute to minimal backlash and accurate torque transmission, ensuring precise and predictable movements. This precision is essential in applications such as robotic arms, CNC machines, and pick-and-place systems.
- Speed Reduction and Torque Amplification:
Planetary gears offer the capability of speed reduction and torque amplification, allowing robots to handle varying loads and achieve different levels of speed and force. By utilizing the gear ratios and multiple gear stages, planetary gears enable robots to perform tasks that require both high torque and precise movements, such as lifting heavy objects or performing delicate assembly operations.
- Efficiency and Energy Savings:
Planetary gears are known for their high efficiency in power transmission. The gear design minimizes friction and ensures efficient torque transfer, resulting in reduced energy consumption. In robotics and automation, where energy efficiency is often a concern, the use of planetary gears can contribute to overall energy savings and longer battery life in battery-powered systems.
- Reliability and Durability:
Planetary gears are designed to be robust and durable, capable of withstanding demanding operating conditions. They can handle high loads, provide long service life, and resist wear and fatigue. These characteristics are crucial in robotics and automation, where the gears are subjected to repetitive and continuous motion. The reliability and durability of planetary gears contribute to the overall performance and longevity of robotic systems.
- Versatility and Customization:
Planetary gears offer versatility and customization options to meet specific requirements in robotics and automation. They can be combined with other mechanical components such as motors, encoders, and sensors to create tailored motion control systems. The ability to select different gear ratios, sizes, and configurations allows for the optimization of robotic designs for specific applications and performance criteria.
In summary, planetary gears are widely used in robotics and automation due to their compact size, high power density, precision, repeatability, speed reduction, torque amplification, efficiency, reliability, durability, versatility, and customization options. These qualities make planetary gears an excellent choice for various robotic applications, including industrial automation, collaborative robots, robotic prosthetics, unmanned vehicles, and many others.

What industries commonly use planetary gears in their applications?
Planetary gears find applications in a wide range of industries and mechanical systems. Let’s explore some of the industries that commonly utilize planetary gears:
- Automotive Industry:
The automotive industry extensively uses planetary gears in various applications. Planetary gears are commonly found in automatic transmissions, where they enable smooth gear shifting, provide different gear ratios, and transmit torque efficiently. They are also used in differential systems, allowing wheels to rotate at different speeds while maintaining power distribution.
- Robotics and Automation:
Planetary gears play a crucial role in robotics and automation systems. They are employed in robotic joints and actuators to provide precise motion control, compact size, and high torque transmission. Planetary gears enable robotic arms to move accurately and handle heavy loads, making them essential components in industrial robots and robotic manipulators.
- Aerospace and Aviation:
The aerospace and aviation industries utilize planetary gears in various applications. They are used in aircraft landing gear systems, where they provide reliable torque transmission and compact design. Planetary gears are also employed in aircraft engine systems, helicopter rotor systems, and satellite mechanisms due to their efficiency, high torque capacity, and ability to operate in space-restricted environments.
- Power Generation:
Planetary gears are utilized in power generation equipment, including wind turbines and hydroelectric generators. In wind turbines, planetary gears enable the conversion of low-speed rotor rotation to high-speed generator rotation, ensuring efficient power generation. They are also employed in hydroelectric generators to transmit power from turbines to electrical generators, providing gear reduction and torque amplification.
- Industrial Machinery:
Planetary gears are widely used in industrial machinery applications. They are found in heavy-duty machinery such as mining equipment, construction machinery, and material handling systems. Planetary gears provide high torque transmission, compactness, and durability, making them suitable for handling demanding tasks in industrial environments.
- Marine and Shipbuilding:
The marine and shipbuilding industries employ planetary gears in various marine propulsion systems. They are used in marine engines, propeller systems, and thrusters. Planetary gears provide efficient power transmission, speed control, and compact design for propulsion systems in vessels ranging from small boats to large ships.
- Medical Equipment:
In the medical field, planetary gears are utilized in various equipment and devices. They are found in medical imaging systems like CT scanners and MRI machines, providing precise motion control and reducing image distortion. Planetary gears are also used in surgical robots and medical devices that require compact size, high torque, and accurate positioning.
These are just a few examples of the industries that commonly use planetary gears in their applications. The versatility, efficiency, and compactness of planetary gears make them suitable for a broad range of industries where precise motion control, torque transmission, and space-saving design are essential requirements.


editor by CX 2023-12-21