China wholesaler Planetary Gearbox Planetary Reducer Gear Box Transmission Gear for 301, 303, 305, 306, 307, 309 Series worm gearbox

Product Description

Planetary Gearbox Planetary reducer Gear Box Transmission Gear
Product Description

ZHangZhoug New CHINAMFG Hydraulic Co., Ltd. is a professional manufacturer of planetary reducers/gearbox. At present,we developed tens of thousands specifications of the planetary reducer/gearbox, travel drive,swing drive and winch drive.The ratio range is 3.3~9000, and the output torque range is 500~1200000N.m. The installation, dimensions and performance parameters of the reducer are exactly the same as famous European brands, which can be perfectly replaced and interchanged.

Details as follows:
BONFIGLIOLI (300 series, 700C series, 700T series, 600W series)
ZOLLERN (ZHP3.13, ZHP3.15, ZHP3.19, ZHP3.20, ZHP3.22, ZHP3.24, ZHP3.25, ZHP3.26, ZHP3.27, ZHP3.29, ZHP3.31, ZHP3.32)
FAIRFIELD, AUBURN GEAR, OMNI GEAR, O&K, etc. Therefore,our planetary reducer/gearbox can be used to replace the gearboxes of these brands.

Bonfiglioli Dinamic oil Brevini RR
300 RE110 EM1571 ED1571 ET2571 RR65/105
301 RE210 EM1030 ED1030 ET2030 RR110/210
303 RE240 ED2030 ET3030 EQ4030 RR310
304 RE310 ED2040 ET3040 EQ4040 RR510
305 RE510 EM1045 ED2045 ET3045 RR510/710
306 RE810 EM1046 ED2046 ET3046 RR810
EM1065 ED2065 ET3065
307 RE1571 EM1090 ED2090 ET3090 RR1571
309 RE1520 ED2150 ET3150 EQ4150 RR1700
310 RE2520 ED2250 ET3250 EQ4250 RR2700
ED2320 ET3320 EQ4320
311 RE3510 SL3001,SL3002,SL3003,SL3004 RR4000
313 RE3511,RE3512,RE3513,RE3514 SL4001,SL4002,SL4003,SL4004 RR5000/RR5200
315 RE6520 SL6001,SL6002,SL6003,SL6004   SL8501,SL8502,SL8503 RR6500
316 GB11000 SL12001,SL12002,SL12003,SL12004 RR8000
317 GB18000,GB21000, SL18001,SL18002,SL18003 RR10000
318 GB26000 SL25001,SL25002,SL25003,SL25004    RR15000
319 GB53000,GB53000 SL35001,SL35002,SL35003,SL35004    RR20000
321 GB61000    


300 Series Planetary Geabox Parameter



    Rated Output Torque  




Max.Input Speed


301 1750 30 3000 3.4-2700 7-700
303 2500 40 3000 3.6-2800 9-800
305 5000 60 3000 3.6-2800 9-800
306 8500 75 2500 3.6-2900 9-800
307 12500 100 2500 3.4-2400 13-700
309 18500 130


3.4-2400 13-700
310 25000 150 2000 4-2500 40-900
311 35000 180 2000 4-2100 18-800
313 50000 200 2000 4-2200 18-800
315 80000 250 1500 4-1800 70-900
316 105000 270 1500 4.4-1200 50-600
317 150000 300 1000 4-1900 70-900
318 200000 340 1000 4.4-1100 200-700
319 30000 380 500 4.8-1400 300-800

Office Environment

Our Equipment
Accessories for 300 Series


Contact Us

How to contact us?
 Nancy Zhang

Foreign Sales&Marketing Manager
HangZhou Kemer Engineering Machinery Co.,LTD

Hardness: Hardened Tooth Surface
Installation: Horizontal Type
Layout: Coaxial
Gear Shape: Spur Gear
Step: Three-Step
Type: Planetary Gear Reducer


Customized Request

epicylic gear

Can planetary gears be used in high-torque applications?

Yes, planetary gears are well-suited for high-torque applications due to their design characteristics and capabilities. Let’s explore why planetary gears can be used in high-torque applications:

  • Torque Distribution:

Planetary gears are designed to distribute torque across multiple gear teeth, allowing them to handle higher torque loads. The arrangement of planet gears around the sun gear and meshing with the ring gear enables torque to be transmitted through multiple contact points simultaneously. This distributed torque distribution helps in reducing stress on individual gear teeth and enhances the overall torque-carrying capacity of the gear system. As a result, planetary gears can effectively handle high torque loads without compromising performance or durability.

  • High Torque Density:

Planetary gears offer high torque density, meaning they can transmit a significant amount of torque relative to their size and weight. The design of planetary gears allows for multiple gear teeth to engage simultaneously, distributing the load and increasing torque-carrying capacity. This high torque density makes planetary gears suitable for applications that require substantial torque output in compact spaces. They can handle the demands of high-torque requirements without the need for larger gear systems.

  • Torque Amplification:

Planetary gears can also provide torque amplification, allowing for increased torque output compared to the input torque. By fixing the ring gear and inputting power to the sun gear, the planet gears rotate and contribute to multiplying the torque. This torque amplification feature is advantageous in high-torque applications where a higher output torque is desired while maintaining a smaller physical size. It enables planetary gears to deliver the necessary torque for demanding tasks.

  • Load Sharing:

Another advantage of planetary gears in high-torque applications is load sharing. The planet gears distribute the load across multiple gear teeth, preventing concentrated stress on individual teeth. This load sharing capability minimizes the risk of gear failure and ensures the durability and longevity of the gear system. It allows planetary gears to handle high torque loads while maintaining reliable and efficient operation.

  • Robust Construction:

Planetary gears are typically constructed using high-strength materials and precise manufacturing techniques to withstand high torque applications. The gear components are engineered to have sufficient strength and durability to handle the demanding conditions associated with high torque. This robust construction ensures that the planetary gears can reliably transmit and sustain high torque without experiencing premature wear or failure.

In summary, planetary gears can be effectively used in high-torque applications due to their torque distribution capabilities, high torque density, torque amplification, load sharing characteristics, and robust construction. These features make planetary gears a reliable choice for various industries, including heavy machinery, automotive drivetrains, industrial equipment, and more.

epicylic gear

How do planetary gears contribute to speed reduction and torque amplification?

Planetary gears offer the capability of both speed reduction and torque amplification, making them versatile components in various mechanical systems. Let’s explore how planetary gears achieve these functions:

  • Speed Reduction:

Planetary gears can reduce rotational speed by utilizing their gear arrangement. The key elements involved in speed reduction are the sun gear, planet gears, and ring gear. Consider the following scenarios:

  • Epicyclic Gear Set:

In a basic planetary gear arrangement, when the sun gear is used as the input and the ring gear is fixed, the planet gears rotate on their own axes while also revolving around the sun gear. This configuration causes the output speed to be lower than the input speed. The reduction in speed is determined by the gear ratios between the sun gear, planet gears, and ring gear.

  • Multiple Stages:

Planetary gears can be combined into multiple stages, with each stage having its own set of sun gears, planet gears, and ring gears. By connecting the output of one stage to the input of another, the rotational speed can be further reduced. This allows for greater flexibility in achieving the desired speed reduction in complex mechanical systems.

  • Torque Amplification:

Planetary gears are also capable of amplifying torque, enabling them to handle higher loads and provide increased output torque. The torque amplification occurs in the following scenarios:

  • Epicyclic Gear Set:

When the sun gear is used as the input and the ring gear is the output, the planet gears rotate on their own axes while also revolving around the sun gear. This arrangement allows for torque amplification, meaning the output torque can be higher than the input torque. The specific torque amplification factor depends on the gear ratios and the number of planet gears in the system.

  • Combination of Gear Stages:

By combining multiple stages of planetary gears, torque amplification can be further increased. Each stage contributes to the overall torque amplification, allowing the system to handle even higher loads and transmit greater torque.

In summary, planetary gears contribute to speed reduction by utilizing the gear ratios between the sun gear, planet gears, and ring gear. They achieve torque amplification by utilizing the arrangement of the gears in an epicyclic gear set, as well as through the combination of multiple gear stages. These capabilities make planetary gears valuable in various applications where speed reduction and torque amplification are required, such as automotive transmissions, industrial machinery, and power transmission systems.

epicylic gear

What is the purpose of using planetary gears in machinery?

Planetary gears serve several important purposes in machinery and mechanical systems. Let’s delve into the key purposes and benefits of using planetary gears:

  • Gear Ratio Variation:

One of the primary purposes of planetary gears is to achieve different gear ratios. By varying the number of teeth on the sun gear, planet gears, and ring gear, a wide range of gear ratios can be obtained. This flexibility enables machinery to adapt to varying speed and torque requirements, allowing for precise control and efficient power transmission.

  • Torque Amplification:

Planetary gears are known for their ability to amplify torque. The arrangement of multiple gear sets in a compact design allows for torque multiplication. This can be particularly beneficial in applications where high torque is required while maintaining a smaller form factor. Planetary gears can efficiently transmit torque and handle heavy loads.

  • Compact Size:

Another advantage of planetary gears is their compact size. The internal gear meshing and the integration of multiple gear sets within a single gear system contribute to their space-saving design. This compactness is valuable in machinery where space constraints are a consideration, enabling the design of more compact and lightweight systems.

  • High Efficiency:

Planetary gears are known for their high efficiency in power transmission. The internal gear meshing and the distribution of load across multiple gear teeth result in efficient torque transfer with minimal power loss. This efficiency is crucial in machinery where energy conservation and optimization are important factors.

  • Directional Control:

Planetary gears allow for bidirectional power transmission. By controlling the direction of rotation of the input and output elements, the direction of rotation in the machinery can be easily changed. This feature is useful in applications that require reversing the direction of rotation or changing the rotational direction without the need for additional mechanisms.

  • Shock Absorption:

The arrangement of multiple gears in a planetary gear system provides inherent shock-absorbing capabilities. The distributed load between the gear teeth helps to dampen vibrations and absorb shocks, contributing to smoother operation and reduced wear on the system components.

  • Application Versatility:

Planetary gears find applications in a wide range of machinery and mechanical systems. They are commonly used in automotive transmissions, industrial machinery, robotics, aerospace systems, power generation equipment, and more. The versatility of planetary gears stems from their ability to provide precise control, compactness, high torque transmission, and efficient power transmission.

In summary, the purpose of using planetary gears in machinery is to achieve variable gear ratios, amplify torque, maintain compact size, ensure high efficiency in power transmission, enable bidirectional control, absorb shocks, and provide versatility for various applications. The unique characteristics of planetary gears make them valuable components in diverse machinery and mechanical systems.

China wholesaler Planetary Gearbox Planetary Reducer Gear Box Transmission Gear for 301, 303, 305, 306, 307, 309 Series worm gearboxChina wholesaler Planetary Gearbox Planetary Reducer Gear Box Transmission Gear for 301, 303, 305, 306, 307, 309 Series worm gearbox
editor by CX 2023-09-22