China OEM 22mm High Precision Low Noise Planetary Gearbox for Medical Robots manufacturer

Product Description


Our micro gearbox for surgical robots, φ 22mm, 1 stage, with a low backlash within 0.3 °, can withstand a maximum torque of 1NM. It makes the mechanical arms of the surgical robots achieve precise end rotation and multiple operations in minimally invasive surgery.



HangZhou Silent Industry Co.,Ltd has been established since 2006. As the national high-tech enterprise based on a strong & CHINAMFG technical team with more than 30 patents, we can offer you with integrated solutions for precision small module gears, micro precision planetary gearboxes and DC gear motors.


We have the most advanced manufacturing and testing equipments, keep expanding the scope of automation in production process and maintain product consistency. And most of our machining equipments are from Hamai in Japan and Affolter in Switzerland,the gear precision can be ISO 8 ,GB6 with good consistency. 


Our products are characterized by high precision and high torque, low noise and long service life. All gears of the gearboxes and gearmotors are developed and produced by our own gear department. Also we can develop, design and produce according to the needs of customers. 





We are ISO 9001, 14001 & IATF16949 certificated manufactory; the reliability of our product quality and the stability of our service can be ensured. We consistently focus our attention on the quality management system and use FEMA, PPAP and CPK analysis to improve it. We aim to meet the needs of our clients and market, and maintain high quality at reasonable prices. Best price, on time delivery, and customers’satisfaction have always been our first and foremost priority.



 During the past years, We have always been adhering to the business philosophy of “manufacturing products with heart and serving customers sincerely”. Our clients spreads widely all over the world, and we have established a long-term friendly relations of cooperation with many world-renowned enterprises such as Google, BAYER, Danaher, SIEGENIA, HYDAC, GEZE, Maxon, Minebea, Vogel’s, etc.





– How do you guarantee the Quality of your products?
We are ISO 9001, 14001 & IATF16949 certificated manufactory and we have the integrated system for quality control. For example, we have IQC (incoming quality control), OQC (out-going quality control), IPQCS (in process quality control section) and FQC (final quality control) to manage each process.

– Do you offer custom-made service and technology support?
YES. We have our own design and development team. We are able to customize on drawings and samples from clients. Each of our engineers has many years of professional experience, we can provide technology support if you need.

– What do I need to offer for getting quotations?
Please offer us 2D or 3D drawings (with material, dimension, tolerance, surface treatment) and all the other related technical requirements including anual quantity, applications or samples, etc.. Then we will quote the best price within 24h.

– How can I know if your product is suitable for me?
Frist, you need to provide us your detailed requirements. The more details you can provide for your inquiry, the more precise solution we’re able to offer for your application. After you confirm the solutions, we will prepare the drawings for your double checking, and proceed with then sample making once we get your final approval. We will make sure each step will accurately and strictly meet your needs.

– How to pay the money?
We accept T/T in advance. Also we have different bank accounts for receiving money, like US dollors or RMB etc.

– How long is your delivery time?
The general delivery date is around 40-60 days, and we can achieve 30 days for delivering if you have special and urgent needs.


We’re looking for business partners all around the world to work and develop together. Our products are widely used in intelligent robots, medical devices, automotive components, smart homes, high-end electric tools, financial equipment, industrial automation etc. Welcome to our company for more discussion. Our strong & CHINAMFG team will make the best effort to fulfill all your requirements with satisfactory consulting, manufacturing and service. To offer our clients the most efficient & economical solution has always been our committed pursuit. 



Excellent & Reliable Quality

Efficient & Economical Solution

Customer-oriented Service

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Application: Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car
Function: Distribution Power, Change Drive Torque, Speed Reduction
Layout: Three-Ring
Hardness: Hardened Tooth Surface
Installation: Horizontal Type
Step: Single-Step
US$ 10/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

precision planetary gearbox

How do you maintain and service a precision planetary gearbox?

Maintaining and servicing a precision planetary gearbox is essential to ensure its optimal performance and longevity. Here’s a detailed explanation of how to maintain and service a precision planetary gearbox:

1. Regular Inspections:

– Perform regular visual inspections of the gearbox to check for any signs of oil leaks, unusual noises, or abnormal vibrations.

– Inspect gear teeth, shafts, bearings, and seals for wear, damage, or signs of excessive heat.

2. Lubrication:

– Follow the manufacturer’s guidelines for lubrication intervals and use the recommended lubricant.

– Regularly inspect and replace the lubricant as per the manufacturer’s recommendations.

– Ensure that the gearbox is properly lubricated to minimize friction, reduce wear, and dissipate heat.

3. Proper Alignment:

– Ensure that the gearbox is properly aligned with the connected equipment to prevent excessive loads and premature wear.

– Check the alignment periodically and make any necessary adjustments.

4. Temperature Monitoring:

– Monitor the operating temperature of the gearbox using temperature sensors or thermal imaging techniques.

– Excessive heat can indicate issues such as overloading, lubrication problems, or misalignment, which need to be addressed promptly.

5. Vibration Analysis:

– Conduct periodic vibration analysis to detect any abnormal vibrations that could indicate bearing wear, misalignment, or other mechanical issues.

– If abnormal vibrations are detected, investigate the cause and take appropriate corrective measures.

6. Bearing Maintenance:

– Inspect and replace bearings as per the manufacturer’s guidelines or when signs of wear or damage are detected.

– Ensure proper lubrication of bearings and follow the recommended maintenance procedures.

7. Seals and Gaskets:

– Inspect and replace seals and gaskets as necessary to prevent oil leaks and contamination.

– Ensure that seals are properly lubricated and provide effective sealing.

8. Professional Service:

– For more complex maintenance tasks or repairs, consult the manufacturer’s guidelines or seek the assistance of a qualified technician or service provider.

– Follow the recommended service intervals and procedures provided by the manufacturer.

9. Documentation:

– Maintain a record of all maintenance activities, including inspections, lubrication, repairs, and replacements.

– Keep track of the gearbox’s service history to identify any recurring issues or patterns and to ensure that maintenance tasks are performed on schedule.

In summary, maintaining and servicing a precision planetary gearbox involves regular inspections, proper lubrication, alignment checks, temperature monitoring, vibration analysis, bearing maintenance, seal and gasket inspections, and professional service when needed. By following the manufacturer’s guidelines and implementing a proactive maintenance approach, you can ensure the optimal performance, longevity, and reliability of the precision planetary gearbox in industrial machinery.

precision planetary gearbox

How do precision planetary gearboxes contribute to energy efficiency in industrial applications?

Precision planetary gearboxes play a significant role in improving energy efficiency in various industrial applications. Here’s a detailed explanation of how precision planetary gearboxes contribute to energy efficiency:

1. High Gearbox Efficiency:

– Precision planetary gearboxes are designed to achieve high transmission efficiency, minimizing power losses during the torque conversion process.

– The gear tooth profiles, gear meshing accuracy, and lubrication systems are optimized to reduce friction and improve overall gearbox efficiency.

– Higher gearbox efficiency translates to less energy wasted as heat and more effective utilization of input power.

2. Compact and Lightweight Design:

– Precision planetary gearboxes are known for their compact and lightweight construction, which reduces the inertia and mass of the rotating components.

– The reduced inertia allows for faster acceleration and deceleration of the load, resulting in shorter cycle times and improved energy efficiency.

– Additionally, the lightweight design reduces the energy required to drive the gearbox itself, leading to overall energy savings in the system.

3. Load Distribution:

– Precision planetary gearboxes distribute the load among multiple gear meshes, which helps to evenly share the torque and minimize stress concentrations.

– The load distribution reduces the risk of overloading individual gears, resulting in more efficient power transmission and improved energy efficiency.

4. Gear Ratio Optimization:

– Precision planetary gearboxes offer a wide range of gear ratios, allowing for optimization based on the specific application requirements.

– By selecting the appropriate gear ratio, the gearbox can match the load and motor speed more efficiently, resulting in improved energy utilization.

5. Precision Control and Positioning:

– Precision planetary gearboxes provide accurate control and positioning capabilities in industrial applications.

– The precise motion control allows for optimal utilization of energy, reducing the need for excessive power consumption and improving overall system efficiency.

6. Maintenance and Reliability:

– Precision planetary gearboxes are designed for long-term reliability, minimizing the risk of unexpected failures and downtime.

– Regular maintenance and lubrication of the gearbox ensure optimal performance and efficiency over the gearbox’s lifespan.

– The reliability factor contributes to energy efficiency by avoiding energy losses due to inefficient or malfunctioning gearboxes.

In summary, precision planetary gearboxes contribute to energy efficiency in industrial applications through their high gearbox efficiency, compact design, load distribution capabilities, gear ratio optimization, precision control, and reliability. By minimizing power losses, optimizing energy utilization, and providing precise motion control, precision planetary gearboxes help industrial systems operate more efficiently, resulting in energy savings and improved overall system performance.

precision planetary gearbox

What materials are commonly used in the construction of precision planetary gearboxes?

The construction of precision planetary gearboxes involves the use of various materials to ensure durability, strength, and efficient power transmission. Here are the commonly used materials in their construction:

1. Gears:

– Gears in precision planetary gearboxes are typically made from high-quality materials with excellent wear resistance and strength.

– Common gear materials include:

Steel: Alloy steels such as 4140, 4340, or 8620 are commonly used due to their high strength, hardness, and toughness.

Stainless Steel: Stainless steel alloys provide corrosion resistance along with good mechanical properties.

Cast Iron: Cast iron gears offer high wear resistance and dampening properties, making them suitable for specific applications.

Brass: Brass gears are used in applications where low noise operation and high lubricity are required.

2. Gear Shafts:

– Gear shafts transmit torque from the gears to the output shaft. They need to be strong and rigid to withstand the forces involved.

– Common materials used for gear shafts include:

Steel Alloys: Similar to gear materials, steel alloys such as 4140, 4340, or 8620 are commonly used for gear shafts due to their high strength and toughness.

Stainless Steel: Stainless steel alloys offer corrosion resistance, making them suitable for specific applications where exposure to moisture or harsh environments is a concern.

3. Housing:

– The housing of precision planetary gearboxes provides support and protection to the internal components.

– Common materials used for gearbox housing include:

Aluminum Alloys: Aluminum alloys offer a good balance of strength and lightweight properties, making them ideal for applications where weight reduction is important.

Cast Iron: Cast iron housings provide excellent strength, rigidity, and vibration damping properties.

Steel: Steel housings offer high strength and durability, suitable for heavy-duty applications.

4. Bearings:

– Bearings in precision planetary gearboxes are crucial for smooth and efficient operation.

– Common bearing materials include:

Steel: Steel bearings, such as chrome steel or stainless steel, are widely used due to their high load-bearing capacity and durability.

Ceramics: Ceramic bearings offer high strength, stiffness, and resistance to corrosion and wear.

5. Lubricants:

– Lubricants are essential for reducing friction and wear between the gears and other moving components in the gearbox.

– Common lubricants include mineral oils, synthetic oils, and greases specifically formulated for gear applications.

In summary, precision planetary gearboxes are constructed using a combination of materials that provide the necessary strength, durability, and efficient power transmission. Gear materials commonly include steel, stainless steel, cast iron, and brass. Gear shafts are typically made from steel alloys or stainless steel. Gearbox housings can be made of aluminum alloys, cast iron, or steel. Bearings are commonly made of steel or ceramics, and lubricants ensure smooth operation and reduce friction. The specific materials used may vary depending on the application requirements and the desired balance of properties, such as strength, weight, corrosion resistance, and wear resistance.

China OEM 22mm High Precision Low Noise Planetary Gearbox for Medical Robots   manufacturer China OEM 22mm High Precision Low Noise Planetary Gearbox for Medical Robots   manufacturer
editor by CX 2024-05-13

Contact Us

servo gearhead

As one of leading rservo gearhead manufacturers, suppliers and exporters of mechanical products, We offer servo gearhead and many other products.

Please contact us for details.

Mail:[email protected]

Manufacturer supplier exporter of servo gearhead

Recent Posts