China wholesaler Epicyclic Spur Pinion Planetary Transmission Sun Gear straight bevel gear

Product Description

Product Description

Product Parameters

Item Spur Gear Axle Shaft
Material 4140,4340,40Cr,42Crmo,42Crmo4,20Cr,20CrMnti, 20Crmo,35Crmo
OEM NO Customize
Certification ISO/TS16949
Test Requirement Magnetic Powder Test, Hardness Test, Dimension Test
Color Paint , Natural Finish ,Machining All Around
Material Aluminum: 5000series(5052…)/6000series(6061…)/7000series(7075…)
Steel: Carbon Steel,Middle Steel,Steel Alloy,etc.
Stainess Steel: 303/304/316,etc.
Copper/Brass/Bronze/Red Copper,etc.
Size According to Customer’s drawing or samples
Process CNC machining,Turning,Milling,Stamping,Grinding,Welding,Wire Injection,Cutting,etc.
Tolerance ≥+/-0.03mm
Surface Treatment (Sandblast)&(Hard)&(Color)Anodizing,(Chrome,Nickel,Zinc…)Plating,Painting,Powder Coating,Polishing,Blackened,Hardened,Lasering,Engraving,etc.
File Formats ProE,SolidWorks,UG,CAD,PDF(IGS,X-T,STP,STL)
Sample Available
Packing Spline protect cover ,Wood box ,Waterproof membrane; Or per customers’ requirements.


Our Advantages

Why Choose US ???

1. Equipment :

Our company boasts all necessary production equipment,
including Hydraulic press machines, Japanese CNC lathe (TAKISAWA), Korean gear hobbing machine (I SNT), gear shaping machine, machining center, CNC grinder, heat treatment line etc.

2. Processing precision:

We are a professional gear & gear shafts manufacturer. Our gears are around 6-7 grade in mass production.

3. Company:

We have 90 employees, including 10 technical staffs. Covering an area of 20000 square meters.

4. Certification :

Oue company has passed ISO 14001 and TS16949

5.Sample service :

We provide free sample for confirmation and customer bears the freight charges

6.OEM service :

Having our own factory and professional technicians,we welcome OEM orders as well.We can design and produce the specific product you need according to your detail information


Cooperation Partner

Company Profile

Our Featured Products


Application: Motor, Electric Cars, Motorcycle, Machinery, Marine, Agricultural Machinery, Car
Manufacturing Method: Cast Gear
Toothed Portion Shape: Spur Gear
Material: Stainless Steel
Type: Circular Gear
Yield: 5, 000PCS / Month
US$ 0/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

epicyclic gear

How do epicyclic gear systems provide different gear ratios within a compact design?

Epicyclic gear systems, also known as planetary gear systems, offer the advantage of providing different gear ratios while maintaining a compact design. Here’s a detailed explanation:

Epicyclic gear systems achieve different gear ratios through the interaction of the sun gear, planet gears, and ring gear. The arrangement and engagement of these gears determine the resulting gear ratios. Here’s how it works:

1. Sun Gear and Ring Gear Sizes:

The gear ratio is influenced by the relative sizes of the sun gear and the ring gear. The number of teeth on these gears determines their effective radius and, consequently, the gear ratio. For example, a larger sun gear or a smaller ring gear will result in a higher gear ratio, providing gear reduction.

2. Planet Gear Engagement:

The planet gears in an epicyclic gear system engage with both the sun gear and the ring gear. The number of teeth on the planet gears affects the gear ratio as well. By altering the number of teeth on the planet gears, different gear ratios can be achieved. Increasing the number of teeth on the planet gears compared to the sun gear or the ring gear will result in a higher gear ratio.

3. Gear Arrangement:

The arrangement of the sun gear, planet gears, and ring gear also plays a role in providing different gear ratios. In a basic epicyclic gear system, the planet gears are evenly spaced around the sun gear and engage with the internal teeth of the ring gear. However, by modifying the arrangement, such as using multiple sets of planet gears or incorporating additional gears, more complex gear ratios can be achieved.

4. Multiple Stages:

Epicyclic gear systems can also utilize multiple stages to further expand the range of available gear ratios. Multiple stages involve connecting multiple sets of epicyclic gear systems in series. Each stage can have its own gear ratio, and by combining the gear ratios of each stage, a wide range of overall gear ratios can be achieved.

5. Compact Design:

Epicyclic gear systems offer a compact design due to the coaxial arrangement of the sun gear, planet gears, and ring gear. The planet gears are mounted on a carrier, which revolves around the sun gear while engaging with the ring gear. This arrangement allows for a high gear reduction or multiplication within a relatively small space, making epicyclic gears well-suited for applications where size and weight constraints are critical.

Overall, through the careful selection of gear sizes, gear engagement, gear arrangement, and the possibility of multiple stages, epicyclic gear systems provide different gear ratios while maintaining a compact design. This versatility in gear ratios makes them highly adaptable to a wide range of applications across various industries.

epicyclic gear

What is the purpose of using epicyclic gears in robotics and automation?

Epicyclic gears, also known as planetary gears, serve several purposes in robotics and automation. Here’s a detailed explanation:

1. Compact Size:

Epicyclic gears offer a compact and space-efficient solution for transmitting torque and achieving different speed ratios. The arrangement of multiple gears within a single gear system allows for a high gear reduction or speed increase in a relatively small package. This compact size is particularly advantageous in robotics and automation applications where space is limited.

2. High Torque Transmission:

Epicyclic gears are capable of transmitting high torque levels due to their design. The load is distributed among multiple planet gears, allowing for a higher torque capacity compared to other gear types. This high torque transmission capability makes epicyclic gears suitable for applications that require precise and powerful motion control, such as robot joints and industrial automation systems.

3. Speed Control:

The arrangement of gears in an epicyclic gear system allows for precise control over speed ratios. By manipulating the input and output gears, different gear ratios can be achieved, enabling speed control and gear reduction or amplification. This speed control capability is essential in robotics and automation to achieve desired motion profiles and optimize system performance.

4. Backlash Minimization:

Epicyclic gears can be designed to minimize backlash, which is the angular clearance between gear teeth when there is no load applied. Backlash can introduce inaccuracies and delays in robotic and automation systems. By carefully designing gear tooth profiles and controlling gear meshing, epicyclic gears can reduce backlash, improving precision and responsiveness in motion control applications.

5. Efficiency and Durability:

Epicyclic gears can achieve high efficiency levels due to their rolling contact between gear teeth. This rolling contact results in less friction and energy loss compared to sliding contact gears. Additionally, the load distribution among multiple gear teeth reduces the stress on individual teeth, enhancing durability and prolonging the gear system’s lifespan.

6. Modular Design:

Epicyclic gears offer a modular design that allows for easy integration into robotic and automation systems. They can be combined with other mechanical components, such as motors and actuators, to create compact and efficient power transmission systems. The modular nature of epicyclic gears simplifies system design, assembly, and maintenance.

7. Reduction of Motor Torque Ripple:

In certain robotic applications, particularly those requiring smooth and precise motion, epicyclic gears can be utilized to reduce motor torque ripple. By incorporating epicyclic gears with appropriate gear ratios, the torque ripple generated by the motor can be smoothed out, resulting in smoother and more uniform motion.

In summary, the purpose of using epicyclic gears in robotics and automation is to provide a compact size, high torque transmission, speed control, backlash minimization, efficiency and durability, modular design, and reduction of motor torque ripple. These advantages make epicyclic gears a valuable choice for achieving precise motion control, optimizing system performance, and enhancing the overall efficiency and reliability of robotic and automation systems.

epicyclic gear

What are the applications of epicyclic gears in various industries?

Epicyclic gears, also known as planetary gears, have a wide range of applications across various industries. Here’s a detailed explanation of their applications:

1. Automotive Industry:

Epicyclic gears are extensively used in automotive transmissions. They provide multiple gear ratios, allowing vehicles to efficiently transfer power from the engine to the wheels at different speeds. Automatic transmissions, dual-clutch transmissions, and continuously variable transmissions (CVT) often employ epicyclic gear systems to achieve smooth gear shifts, improved fuel efficiency, and enhanced performance.

2. Robotics and Automation:

Epicyclic gears play a crucial role in robotic systems and automation equipment. They are used in robotic joints and manipulators to control movements and transmit torque. The compact size, high torque capacity, and versatility of epicyclic gears make them ideal for precise and efficient motion control in robotics.

3. Aerospace Industry:

Epicyclic gears find applications in the aerospace industry, particularly in aircraft engines and auxiliary systems. They are used in gearboxes to transmit power from the engine to various components, such as generators, pumps, and auxiliary systems. Epicyclic gears are preferred for their compactness, high torque capacity, and ability to achieve multiple gear ratios.

4. Power Tools:

Epicyclic gears are widely employed in power tools such as drills, impact drivers, and wrenches. They provide the necessary torque multiplication and speed reduction to deliver high power output. Epicyclic gears enable power tools to efficiently transfer and control rotational motion, enhancing their performance and usability.

5. Industrial Machinery:

Epicyclic gears are used in various industrial machinery and equipment. They find applications in conveyors, printing machines, textile machinery, packaging equipment, and more. Epicyclic gears enable speed control, torque multiplication, and directional changes, facilitating the efficient operation of industrial processes.

6. Renewable Energy:

Epicyclic gears are utilized in wind turbines and solar tracking systems. They help optimize the rotational speed of wind turbine blades and enable solar panels to track the movement of the sun. Epicyclic gears contribute to efficient power generation in renewable energy systems.

7. Medical Devices:

Epicyclic gears have applications in medical devices and equipment such as surgical robots, imaging systems, and prosthetic devices. They enable precise and controlled movements, ensuring accurate diagnostics, surgical procedures, and rehabilitation.

These are just a few examples of the diverse applications of epicyclic gears. Their ability to provide multiple gear ratios, compactness, high torque capacity, and versatility make them indispensable in a wide range of industries where efficient power transmission and motion control are essential.

China wholesaler Epicyclic Spur Pinion Planetary Transmission Sun Gear straight bevel gearChina wholesaler Epicyclic Spur Pinion Planetary Transmission Sun Gear straight bevel gear
editor by CX 2023-11-06