China Custom China High Quality Sintered Powder Metal Internal Ring Planetary Gears spiral bevel gear

Product Description

Made in china OEM gears/inner gears/pinion gears

Product Name High precision gear  by powder metallurgy
Material Iron powder, alloy powder,precious metal powder
Technology Sintering – Powder Metallurgy
  Certificate ISO9001/TS16949
Surface Treatment High frequency quenching, oil impregnation,CNC,vacuum cleaning,polishing,
Apperance No crumbling, cracks, exfoliation, voids, metal pitting and other defects
Process Flow
Powder mixing – Forming – Sintering – Oil impregnation – Sizing -Ultrasonic cleaning – Steam oxidation – Oil impregnation – Final inspection – Packing
Application Motorcycle parts, auto parts, Power Tools parts, Motor parts, electric Bicycle,


Why Powdered Metals?

Significant cost savings.
Create complex or unique shapes.
No or minimal waste during production.
High quality finished products.
Strength of materials.

Company Profile
JINGSHI established in 2007                                               
Manufacturer & Exporter                             
Exacting in producing powder metallurgy gears and parts    
Passed ISO/TS16949 Quality Certificate                  
Advanced Equipment                                
Numbers senior R & D engineers and Skilled operators      
Precise Examination Instruments.                        
Strict Quality Control                                 
With the “More diversity, More superior, More professional ” business purposes, we are committed to establish long-term friendship and CHINAMFG relationship with domestic and international customers to create a bright future .


Just contact with us with 2D or 3D drawing to start our cooperation!

Application: Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car
Hardness: Hardened Tooth Surface
Gear Position: External Gear
Manufacturing Method: Sintered Gear
Toothed Portion Shape: Spur Gear
Material: Iron Alloy
US$ 2/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

epicylic gear

How do planetary gears handle changes in speed and torque distribution?

Planetary gears are capable of effectively handling changes in speed and torque distribution due to their unique design and configuration. Let’s explore how planetary gears handle these changes:

  • Speed Changes:

Planetary gears can handle speed changes by utilizing the different gear ratios they offer. By adjusting the sizes and numbers of teeth on the sun gear, planet gears, and ring gear, different gear ratios can be achieved. When the input speed is applied to the sun gear, it gets transmitted to the planet gears, resulting in a specific output speed. By changing the gear ratio, the output speed can be adjusted accordingly. This ability to vary the gear ratio allows planetary gears to adapt to different speed requirements in mechanical systems.

  • Torque Distribution:

Planetary gears excel in distributing torque across multiple gear teeth, ensuring efficient torque transmission and load sharing. The planet gears are meshed with both the sun gear and the ring gear, enabling 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. The load is shared among the planet gears, preventing excessive wear and minimizing the risk of gear failure.

  • Torque Amplification:

Planetary gears can also handle 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. The arrangement of multiple gear sets in a compact design enables torque amplification, making planetary gears suitable for applications that require high torque output while maintaining a smaller physical size.

  • Load Balancing:

Another aspect of torque distribution in planetary gears is load balancing. The planet gears distribute the load across multiple gear teeth, reducing the concentration of forces on individual teeth. This load balancing capability results in improved gear system durability and longevity. It also helps in minimizing vibration, noise, and wear, ensuring smoother and more reliable operation.

  • Flexible Configuration:

Planetary gears offer flexibility in their configuration, allowing for the accommodation of changes in speed and torque distribution. The number of planet gears, the size of the gears, and their arrangement can be adjusted to meet specific application requirements. This flexibility enables planetary gears to handle a wide range of speed and torque variations, making them adaptable to different mechanical setups.

In summary, planetary gears handle changes in speed and torque distribution through their ability to adjust gear ratios, distribute torque across multiple gear teeth, amplify torque, balance loads, and accommodate flexible configurations. These characteristics make planetary gears suitable for applications that require precise control over speed and torque, efficient power transmission, and reliable performance.

epicylic gear

How do planetary gears handle variations in tooth engagement during operation?

Planetary gears are designed to handle variations in tooth engagement during operation, ensuring smooth and reliable performance. Let’s explore how planetary gears address these variations:

  • Tolerance for Misalignment:

Planetary gears are designed with a certain degree of tolerance for misalignment. This means that slight variations in tooth engagement due to manufacturing tolerances, assembly, or operating conditions are accommodated without causing significant impact on the gear system. The gear teeth are carefully designed with appropriate profiles, clearances, and backlash to allow for some degree of misalignment while maintaining proper functioning.

  • Load Distribution:

The arrangement of multiple planet gears in a planetary gear system helps distribute the load across multiple gear teeth. Each planet gear shares the load with the adjacent gears, reducing the stress on individual teeth and promoting even tooth engagement. This load distribution capability helps minimize localized wear, noise, and vibration, resulting in smoother and more efficient operation.

  • Flexible Mounting and Support:

Planetary gears are often mounted on flexible support structures, such as bearings or flexible couplings. These components help absorb and compensate for small variations in tooth engagement during operation. The flexible mounting and support systems provide some degree of flexibility and compliance, allowing the gears to self-adjust and maintain proper tooth contact under varying operating conditions.

  • Lubrication and Cooling:

Proper lubrication and cooling play a crucial role in handling variations in tooth engagement. Lubricants reduce friction and wear between gear teeth, ensuring smooth operation and minimizing the impact of tooth engagement variations. Additionally, effective cooling mechanisms help dissipate heat generated during operation, preventing excessive temperature rise that could affect the gear meshing performance.

  • Robust Construction:

Planetary gears are typically constructed using high-strength materials and precise manufacturing techniques. This robust construction enhances the gear system’s ability to withstand variations in tooth engagement. By ensuring high-quality gear components, proper heat treatment, and stringent quality control, planetary gears are built to handle the dynamic loads and variations encountered during operation.

In summary, planetary gears handle variations in tooth engagement through their tolerance for misalignment, load distribution among multiple planet gears, flexible mounting and support, effective lubrication and cooling, and robust construction. These design considerations and features enable planetary gears to maintain proper tooth contact, minimize wear and noise, and ensure reliable performance in various applications, including 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 Custom China High Quality Sintered Powder Metal Internal Ring Planetary Gears spiral bevel gearChina Custom China High Quality Sintered Powder Metal Internal Ring Planetary Gears spiral bevel gear
editor by CX 2023-09-28