TNE205 Series High Precision Planetary Gearbox Helical Gear Reducer
TNE205 Series High Precision Planetary Gearbox Helical Gear Reducer Overview
TNE205 Series High Precision Planetary Gearbox Helical Gear Reducer, also known as servo motor planetary gearbox and low backlash planetary gearbox, is a type of gearbox that is designed to provide high precision and accurate motion control to various industrial applications. It is commonly used in robotics, automation, and other similar industries where precise and reliable motion control is required.

Basic Construction of High Precision Planetary Gearbox

1. Sun Gear
The sun gear is located at the center of the planetary gearbox and is usually connected to the input shaft or fixed to the housing as a stationary component.
2. Planet Gears
Planet gears rotate around the sun gear, supported and held in relative positions to each other by the planet carrier. Each planet gear meshes with both the sun gear and the internal ring gear. When power is input, they share and distribute the load.
3. Planet Carrier
The planet carrier is a structure with multiple planet gear shaft holes, which carries the planet gears and allows them to rotate relative to the sun gear. The planet carrier can act as an output element or be connected to another shaft to transmit or receive torque.
4. Ring Gear/Annulus
The internal ring gear is a large diameter circular gear fixed inside the housing, with teeth on both the inner and outer surfaces that mesh with the planet gears. In some applications, the internal ring gear can also serve as an input or output terminal.
5. Bearings and Shaft System
Bearings in high precision planetary gearboxes support the input shaft, output shaft, and planet carrier, ensuring stable rotation and smooth operation between components.
6. Housing
The housing is a sturdy structure that encloses all internal components, providing stable support for the gears and protecting the interior from external impurities. It may also include cooling or lubrication systems.
7. Shafts and Keys
The input and output shafts are connected to the sun gear or planet carrier through keys to transmit power, ensuring precise torque transmission and axial positioning.
8. Seals
Seals prevent lubricating oil leakage and contamination from entering the gearbox, ensuring internal cleanliness and good lubrication status.
Working Principle of High Precision Planetary Gearbox
The high precision planetary gearbox works based on torque transfer and amplification, speed and gear ratio control, low backlash, and dynamic response and stability. When power is input from the input shaft to the sun gear, the planet gears mesh with the sun gear and the internal ring gear, rotating and revolving at the same time. As multiple sets of planet gears work together, the load is evenly distributed, significantly increasing the output torque and achieving torque amplification. By adjusting the number of planet gears or the gear ratios between the sun gear, planet gears, and internal ring gear, the input and output speed relationship and gear ratio can be precisely controlled. High precision planetary gearboxes are specially designed to reduce or eliminate the backlash between gears, ensuring high motion accuracy and smoothness under any load. Due to the even load distribution and multiple contact points, high precision planetary gearboxes provide excellent dynamic performance, including fast response, stable operation, and durability under heavy loads.

Design and Selection Considerations for High Precision Planetary Gearbox
| Consideration Factors | Description |
|---|---|
| Application type | Determine the specific application requirements and select the appropriate gearbox model. |
| Speed and torque requirements | Determine the required speed and torque range, select the appropriate gear ratio, and ensure that the gearbox can handle the maximum torque and speed without damage. |
| Environmental conditions | Determine the environment in which the gearbox will operate, including temperature, humidity, and other environmental factors, and select the appropriate gearbox with suitable sealing and cooling features. |
| Mounting position and space limitation | Determine the mounting position and space limitations of the gearbox, and select the appropriate gearbox with suitable dimensions and mounting options. |
| Service life and maintenance requirements | Determine the expected service life and maintenance requirements of the gearbox, and select the appropriate gearbox with suitable service life and maintenance features. |
| Cost and budget | Determine the available budget and cost requirements, and select the appropriate gearbox with suitable cost and performance balance. |
Applications of High Precision Planetary Gearbox
High precision planetary gearbox is widely used in various industries that require precise and reliable motion control. Some of the common applications include:
- Servo motor systems in industrial automation equipment, such as robot joint drives, precision machine tool feed mechanisms, semiconductor manufacturing equipment, etc.
- High-end medical equipment, such as CT scanners, MRI machines, surgical robots, etc.
- Aerospace and aviation applications, such as landing gear retracting systems, flight control system actuators, satellite attitude adjustment devices, etc.
- Precision instruments, such as scientific experimental equipment, precision measuring instruments, optical tracking systems, etc.
- Automotive industry, such as power steering systems for new energy vehicles, drive units for electric vehicles, transmission systems for high-performance racing cars, etc.
- Robotics technology, including joint drive parts in industrial robots, service robots, and special operation robots.
- Logistics automation, such as lifters, conveyor drives, AGVs (Automatic Guided Vehicles), etc. in automated storage systems.
Introduction to Our Company

We are a professional manufacturer of power transmission equipment, located in Hangzhou, Zhejiang. We strictly follow the international quality management system standards ISO9001/ISO14001, and our products have passed China Compulsory Certification (CCC) and European Community CE Certification. Our products are manufactured according to international standards and have reached the advanced level of similar products in the world.
Our Advantages
- Professional R&D team with rich experience in power transmission equipment design and development.
- Advanced manufacturing facilities and processes to ensure high-quality and reliable products.
- Strict quality control system to ensure that each product meets customer requirements and specifications.
- Flexible production capacity to meet different customer needs and order requirements.
- Efficient logistics and supply chain management to ensure timely delivery and customer satisfaction.
- Competitive pricing and cost-effective product solutions to meet different customer budgets and performance requirements.
Author: Miya
Product Quick Detail:
- Standard and non-standard available
- With high quality and competitive price
- Prompt delivery
- Packing as per customer’s demand.
We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.
Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.

Materials Available
1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
Surface Treatment
Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.
Processing Method
CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
QC & Certificate
Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009
Package & Lead Time
Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port




