China supplier Custom Precision Planetary Gearbox Micro Steel Gear Motor Speed Reduction Servo Gears Spur Gear Parts Power Transmission Gear Box synchromesh gearbox

Product Description

We specialize in designing and manufacturing highly engineered, custom components and assemblies. Our professional staff are geared towards providing customers with high quality products and excellent service .
Our main products, steel gearboxes ,gear parts for motors through powder metallurgy processing.

A gearbox is a power transmission device to produce high torque by reducing the drive speed or increase the drive speed the other way. Planetary gearbox consisting 3 components: sun gear, planet gear and ring gear . A Sun gear is a gearwheel in a planetary gear system, that rotates around its own axis and has other gears (planet gears) that rotate around it. Much like the Sun and planets in our solar system. The amount of planetary gears in a gearbox varies based on the gear ratio. Most planetary gearboxes have from 2 to 5 planet gears. When looking at planetary gears, the strength of the gearbox is usually determined by the size of the sun gear. Larger sun gears will allow for higher torque values. The planet carrier,Its objective is to hold up to gears of the same size, which mesh with the sun gear.

Our gearbox,Light weight,small size, high carrying capacity, long service life .Smooth operation, low noise, large output torque, large speed ratio, high efficiency, power diversion, and multi-tooth meshing by powder metallurgy process . 

Gearbox ratio 3 to 1000 .

Customized metal parts specification


Product type Planetary gearbox , gear parts , speed reducer , precision gear parts
Material Metal 
Process Powder metallurgy , metal injection molding 
Treatment plating ,sand blasting , PVD , coating
Tolerance ±0.3%
Drawing format DWG ,IGS , STP
Delivery time  10 days for mass production 

Powder metallurgy (PM) is a metal parts / components fabrication way and made from metal powders material . The process of powder metallurgy (PM) is blending fine powder materials , press them into a desired shape or form compacting , and heating the compressed material in a controlled atmosphere to CHINAMFG the material sintering .PM process can avoid , or greatly reduce the need to use metal removal processes,thereby drastically reducing yield losses in manufacture and oftern resulting in lower costs .
The powder metallurgy (PM) consist 3 steps : powder blending,compaction and sintering .Common products include gears , structural metal parts , bushings used for automobiles , appliances and powder equipments .
Advantages of powder metallurgy
Products made by powder metallurgy (PM) generally do not need further finishing , because produces good surface finish.
Maintains close dimensional tolerances
Provides materials which may be heat treated for increased strength or enhanced wear resistance .
There is less wastage of raw material , can be very economical for mass production .
Complex shapes parts can be made . Provides controlled porosity for self-lubrication or filtration.
Suits to high volume parts productions requirements .

Custom metal parts


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Application: Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car
Function: Distribution Power, Clutch, Change Drive Torque, Change Drive Direction, Speed Changing, Speed Reduction, Speed Increase
Layout: Three-Ring
Hardness: Hardened Tooth Surface
Installation: Torque Arm Type
Step: Three-Step
US$ 6/Piece
1 Piece(Min.Order)

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Customized Request

precision planetary gearbox

What is the expected lifespan of a precision planetary gearbox?

The expected lifespan of a precision planetary gearbox can vary depending on several factors. Here’s a detailed explanation of the factors that can influence the lifespan of a precision planetary gearbox:

1. Quality of Manufacturing:

– The quality of manufacturing plays a crucial role in determining the lifespan of a precision planetary gearbox.

– Gearboxes manufactured with high-quality materials, precise machining, and strict quality control processes are likely to have a longer lifespan.

– Components such as gears, bearings, and seals must be manufactured to tight tolerances and undergo proper heat treatment or surface hardening processes to ensure durability.

2. Operating Conditions:

– The operating conditions in which the precision planetary gearbox is used significantly impact its lifespan.

– Factors such as temperature, humidity, shock, and vibration levels can affect the gearbox’s performance and longevity.

– Gearboxes subjected to extreme temperatures or harsh environments may experience accelerated wear and reduced lifespan.

3. Load and Torque:

– The magnitude and type of load applied to the precision planetary gearbox influence its lifespan.

– Continuous operation near or beyond the gearbox’s rated torque capacity can lead to premature wear and failure.

– Overloading, shock loads, or frequent reversals in direction can also impact the gearbox’s lifespan.

4. Lubrication and Maintenance:

– Proper lubrication and regular maintenance are essential for maximizing the lifespan of a precision planetary gearbox.

– Insufficient or improper lubrication can lead to increased friction, wear, and heat generation, reducing the gearbox’s lifespan.

– Regular inspection, cleaning, and lubrication of the gearbox, as recommended by the manufacturer, can help identify and address potential issues before they escalate.

5. Application Requirements:

– The specific requirements of the application, including duty cycle, operating speed, and operational cycles, can affect the lifespan of the precision planetary gearbox.

– Gearboxes designed for continuous heavy-duty applications may have a shorter lifespan compared to those used in intermittent or light-duty applications.

6. Overdesign and Safety Factors:

– Some precision planetary gearboxes are intentionally overdesigned or incorporate safety factors to ensure a longer lifespan.

– Gearboxes with higher safety factors or robust construction can withstand unexpected load spikes or harsh operating conditions, increasing their lifespan.

7. Maintenance and Repair Practices:

– The quality and timeliness of maintenance and repair practices can impact the lifespan of a precision planetary gearbox.

– Following recommended maintenance schedules, promptly addressing any issues, and using genuine replacement parts can help extend the gearbox’s lifespan.

8. Manufacturer and Design:

– The reputation and expertise of the gearbox manufacturer, as well as the design features, can influence the expected lifespan.

– Well-established manufacturers with a track record of producing reliable gearboxes are more likely to provide products with longer lifespans.

– Design features such as optimized gear tooth profiles, robust housing, and effective sealing mechanisms can enhance the longevity of the gearbox.

9. Usage Patterns:

– The usage patterns of the precision planetary gearbox, including the frequency of start-stop cycles and the duration of continuous operation, can impact its lifespan.

– Gearboxes subjected to frequent start-stop cycles or prolonged continuous operation may experience higher wear and reduced lifespan.

In summary, the expected lifespan of a precision planetary gearbox depends on factors such as the quality of manufacturing, operating conditions, load and torque, lubrication and maintenance practices, application requirements, overdesign and safety factors, maintenance and repair practices, manufacturer and design, and usage patterns. While it is challenging to provide an exact lifespan, a well-designed and properly maintained precision planetary gearbox can typically last for several years or even decades in appropriate operating conditions.

precision planetary gearbox

Are there specific industries where precision planetary gearboxes are most commonly used?

Yes, precision planetary gearboxes find applications in various industries where their specific characteristics and performance capabilities are highly valued. Here’s a detailed explanation of some of the industries where precision planetary gearboxes are commonly used:

1. Robotics and Automation:

– Precision planetary gearboxes are extensively used in robotics and automation systems.

– They provide high torque density, compact size, and precise motion control, making them ideal for robotic joints, actuators, and positioning systems.

– The high efficiency and backlash reduction of precision planetary gearboxes contribute to the overall accuracy and reliability of robotic systems.

2. Aerospace and Defense:

– The aerospace and defense industries rely on precision planetary gearboxes for various applications.

– They are used in aircraft landing gear systems, control surfaces, weapon systems, and satellite deployment mechanisms.

– Precision planetary gearboxes offer high torque transmission, compactness, and reliable performance in demanding environments.

3. Industrial Automation and Machinery:

– Precision planetary gearboxes are widely used in industrial automation and machinery applications.

– They are employed in conveyors, packaging equipment, printing machinery, machine tools, and material handling systems.

– The high torque capacity, efficiency, and compact design of precision planetary gearboxes make them suitable for various industrial processes.

4. Medical and Healthcare:

– Precision planetary gearboxes play a crucial role in medical and healthcare equipment.

– They are used in medical robots, surgical devices, prosthetics, and imaging systems.

– The compact size, precise motion control, and reliability of precision planetary gearboxes meet the stringent requirements of the medical industry.

5. Automotive and Electric Vehicles:

– Precision planetary gearboxes are employed in automotive and electric vehicle applications.

– They are used in powertrain systems, electric vehicle transmissions, and hybrid vehicle drivetrains.

– The high torque density, efficiency, and compactness of precision planetary gearboxes contribute to improved vehicle performance and fuel efficiency.

6. Renewable Energy:

– Precision planetary gearboxes are utilized in renewable energy systems, such as wind turbines and solar trackers.

– They enable the conversion of rotational motion from wind or solar energy into electrical power.

– Precision planetary gearboxes in renewable energy systems require high efficiency, durability, and the ability to handle varying loads and environmental conditions.

7. Machine Vision and Optics:

– Precision planetary gearboxes are used in machine vision systems, optical equipment, and cameras.

– They provide smooth and precise movement for focusing, zooming, and adjusting optical elements.

– The compact size, high torque capacity, and low backlash of precision planetary gearboxes contribute to accurate imaging and optical performance.

These are just a few examples of the industries where precision planetary gearboxes are commonly used. Their versatility, compactness, reliability, and precise motion control make them a preferred choice in applications requiring high torque transmission and precise motion control.

precision planetary gearbox

How does a precision planetary gearbox work?

A precision planetary gearbox is a type of gear system that operates based on the principles of planetary motion. Here’s a detailed explanation of how it works:

A precision planetary gearbox consists of several key components:

1. Planetary Gears:

– The core of a precision planetary gearbox is the arrangement of planetary gears. These gears are typically small in size and are mounted on individual shafts called planet gears.

– The planet gears rotate around a central sun gear and are enclosed within an outer ring gear. The sun gear is connected to the input shaft, while the outer ring gear is connected to the output shaft.

2. Input and Output Shafts:

– The input shaft is the component that delivers power to the gearbox, usually connected to a motor or an engine.

– The output shaft is the component that receives power from the gearbox and transmits it to the desired application.

3. Carrier:

– The carrier is a structure that holds the planet gears and allows them to rotate around the central sun gear.

4. Ring Gear:

– The outer ring gear serves as the fixed component of the gearbox, providing support and housing for the planet gears.

Now, let’s understand how the precision planetary gearbox works:

– When the input shaft rotates, it drives the sun gear, which is at the center of the gear system.

– As the sun gear rotates, it meshes with and drives the planet gears that are mounted on the carrier.

– The planet gears, while rotating around the sun gear, also rotate on their own axis due to their connection to the carrier.

– The rotation of the planet gears causes them to engage with and rotate the outer ring gear.

– The output shaft is connected to the outer ring gear and receives the rotational motion from the planet gears, transmitting it to the desired application.

The precision planetary gearbox operates based on the principles of gear reduction, as the rotation of the sun gear is transmitted to the planet gears, resulting in a reduced rotational speed and increased torque at the output shaft compared to the input shaft.

Advantages of a precision planetary gearbox:

1. High Efficiency:

– Precision planetary gearboxes are known for their high efficiency in power transmission. The design minimizes frictional losses, resulting in more efficient energy transfer.

2. Compact and Lightweight:

– The compact layout of the planetary gears allows for a high gear reduction ratio in a relatively small and lightweight package.

– This makes precision planetary gearboxes suitable for applications where space and weight constraints are important considerations.

3. High Precision:

– Precision planetary gearboxes are designed to provide accurate and consistent rotational motion.

– The gear arrangement distributes the load across multiple gears, reducing backlash and ensuring precise positioning.

4. Versatility:

– Precision planetary gearboxes can be customized with different gear ratios and configurations to suit a wide range of applications.

– They are commonly used in various industries, including robotics, automation, aerospace, automotive, and manufacturing.

In summary, a precision planetary gearbox operates by transmitting power through a system of planetary gears. The rotation of the input shaft drives the sun gear, which in turn drives the planet gears. The planet gears rotate around the sun gear and on their own axis, engaging with the outer ring gear and transmitting the rotational motion to the output shaft. This design offers high efficiency, compactness, precision, and versatility for various applications.

China supplier Custom Precision Planetary Gearbox Micro Steel Gear Motor Speed Reduction Servo Gears Spur Gear Parts Power Transmission Gear Box   synchromesh gearbox	China supplier Custom Precision Planetary Gearbox Micro Steel Gear Motor Speed Reduction Servo Gears Spur Gear Parts Power Transmission Gear Box   synchromesh gearbox
editor by CX 2024-04-24

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