China best Planetary Gear Units Used for Arm Hole Mining Chain Saws wholesaler

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

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:


1.Are you a factory or trader ?
We are a professional factory which has 20 years history specialized in gear transmission .
Our MOQ is 1pcs. 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.SGR 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 .  

Application: Motor, Machinery
Function: Distribution Power, Change Drive Torque, Speed Reduction
Layout: Coaxial
Hardness: Hardened Tooth Surface
Installation: Vertical Type
Step: Single-Step
US$ 200/Piece
1 Piece(Min.Order)

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Customized Request

epicylic gear

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.

epicylic gear

What are the considerations for lubrication and maintenance of planetary gears?

Proper lubrication and maintenance are crucial for the reliable and efficient operation of planetary gears. Let’s explore the key considerations for lubrication and maintenance:

  • Lubrication:

Effective lubrication is essential to reduce friction, wear, and heat generation in planetary gears. Consider the following aspects:

  • Lubricant Selection:

Choose a lubricant specifically designed for gear systems with the appropriate viscosity and additives to ensure proper film formation and protection against wear. Consult the manufacturer’s recommendations or industry standards for suitable lubricants.

  • Lubricant Contamination:

Prevent contamination of the lubricant by keeping the gear system clean and free from debris, dust, and moisture. Use proper sealing techniques and consider filtration systems to maintain the lubricant’s cleanliness and performance.

  • Lubrication Frequency:

Follow the recommended lubrication intervals provided by the equipment manufacturer. Factors such as operating conditions, load, and temperature can affect the lubrication frequency. Regularly monitor the lubricant condition and conduct oil analysis to determine if lubricant replacement or additional lubrication is required.

  • Maintenance:

Regular maintenance helps ensure the longevity and optimal performance of planetary gears. Consider the following maintenance aspects:

  • Inspection:

Periodically inspect the gear system for signs of wear, damage, misalignment, or abnormal noise. Detecting issues at an early stage allows for timely maintenance and prevents further damage.

  • Alignment:

Proper alignment of the gear components is crucial to distribute the load evenly and prevent premature wear. Regularly check and adjust the gear alignment as per the manufacturer’s specifications.

  • Torque and Load:

Ensure that the gear system operates within the recommended torque and load limits. Excessive loads can lead to increased wear and decreased gear life. Consider the application requirements and ensure the gear system is appropriately sized and rated.

  • Temperature:

Monitor the operating temperature of the gear system. Excessive heat can degrade the lubricant’s performance and accelerate wear. Proper cooling mechanisms, such as fans or heat exchangers, may be required in high-temperature environments.

In summary, proper lubrication and maintenance are essential for planetary gears. Choose suitable lubricants, prevent contamination, follow recommended lubrication intervals, inspect for wear, ensure proper alignment, consider torque and load limits, monitor operating temperature, and conduct regular maintenance. By adhering to these considerations, you can prolong the lifespan, enhance performance, and minimize the risk of gear failure in planetary gear systems.

epicylic gear

What is a planetary gear and how does it work in mechanical systems?

A planetary gear, also known as an epicyclic gear, is a type of gear system used in mechanical systems to achieve various gear ratios and torque transmission. Let’s explore what a planetary gear is and how it works:

  • Definition:

A planetary gear consists of three main components: a sun gear, planet gears, and a ring gear. The sun gear is located at the center and is typically driven by an input source, such as a motor or engine. The planet gears are gears that surround the sun gear and are connected to a carrier or arm. The ring gear is the outermost gear and meshes with the planet gears.

  • Operation:

When the sun gear rotates, it drives the planet gears, causing them to rotate on their own axes while also orbiting around the sun gear. The planet gears are mounted on the carrier, which can rotate independently or be held stationary. As the planet gears rotate and orbit, they engage with the ring gear, which remains fixed or acts as the output. This interaction between the sun gear, planet gears, and ring gear allows for different gear ratios and torque transmission.

  • Gear Ratios:

A key advantage of planetary gears is their ability to achieve multiple gear ratios within a compact design. By varying the number of teeth on the sun gear, planet gears, and ring gear, different gear ratios can be obtained. The gear ratio is determined by the ratio of the number of teeth between the sun gear and the ring gear, as well as the speed and direction of rotation of the sun gear.

  • Applications:

Planetary gears are widely used in various mechanical systems and applications where precise control of speed, torque, and direction is required. They are commonly found in automotive transmissions, robotics, aerospace systems, industrial machinery, and more. Their compact size, high gear ratios, and torque-carrying capacity make them versatile and efficient in transmitting power.

In summary, a planetary gear is a gear system consisting of a sun gear, planet gears, and a ring gear. It operates by the rotation and orbiting of the planet gears around the sun gear, allowing for different gear ratios and torque transmission. Planetary gears find applications in a wide range of mechanical systems where precise control and efficient power transmission are necessary.

China best Planetary Gear Units Used for Arm Hole Mining Chain Saws wholesaler China best Planetary Gear Units Used for Arm Hole Mining Chain Saws wholesaler
editor by CX 2023-10-12