TRHE110 Series High Precision Planetary Gearbox Right Angle Reducer
Overview of TRHE110 Series High Precision Planetary Gearbox Right Angle Reducer
TRHE110 Series High Precision Planetary Gearbox Right Angle Reducer, also known as servo motor planetary gearbox and low backlash planetary gearbox, is a high precision gearbox that features low backlash, high load capacity, and high torsional stiffness. It is widely used in various industries for its excellent motion control and position accuracy.

Basic Construction of High Precision Planetary Gearbox
High Precision Planetary Gearbox consists of several main components:
- Sun Gear: located in the center of the gearbox, usually connected to the input shaft or fixed to the housing as a stationary component
- Planet Gears: rotate around the sun gear and are supported and positioned relative to each other by a planet carrier. They engage with both the sun gear and the internal ring gear, and share and distribute the load
- Planet Carrier: a structure with multiple planet gear shaft holes that carries the planet gears and allows them to rotate relative to the sun gear. It can act as an output element or be connected to another shaft to transmit or receive torque
- Ring Gear/Annulus: a large diameter ring gear fixed inside the housing that engages with the planet gears. It can also act as an input or output end in some applications
- Bearings and Shaft System: bearings support the input shaft, output shaft, and planet carrier, ensuring stable rotation and smooth operation between components
- Housing: a sturdy structure that encloses all internal components, provides stable support for the gears, protects the interior from external impurities, and may contain cooling or lubrication systems
- Shafts and Keys: input and output shafts are connected by a key to the sun gear or planet carrier for precise torque transmission and axial positioning
- Seals: prevent lubricant leakage and contamination, ensuring internal cleanliness and good lubrication conditions

Working Principle of High Precision Planetary Gearbox
High Precision Planetary Gearbox works by:
- Transferring and amplifying torque: when the power is transmitted from the input shaft to the sun gear, the sun gear starts to rotate, and the planet gears start to rotate and revolve due to their engagement with the sun gear and the internal ring gear. Multiple groups of planet gears work together, and the load is evenly distributed, significantly increasing the output torque and achieving torque amplification
- Controlling speed and gear ratio: by adjusting the gear ratio between the sun gear, planet gears, and internal ring gear, the speed relationship and gear ratio between the input and output can be precisely controlled. For example, if there are more planet gears or the difference in the number of teeth between the sun gear and internal ring gear is larger, the gear ratio increases, the output speed decreases, and the torque correspondingly increases
- Low backlash characteristic: High Precision Planetary Gearbox pays special attention to reducing or eliminating the backlash between gears, known as "zero/low backlash." This is usually achieved through precision processing, preloading technology, and component selection, ensuring high motion accuracy and smoothness under any load
- Dynamic response and stability: due to the even load distribution and multiple contact points, High Precision Planetary Gearbox can provide excellent dynamic performance, including fast response, stable operation, and durability under heavy loads

Design and Selection Considerations for High Precision Planetary Gearbox
| Factors | Considerations |
|---|---|
| Load capacity | Match the gearbox size and gear ratio to the load requirements |
| Gear Ratio | Choose the appropriate gear ratio for the desired output speed and torque |
| Backlash | Consider the required precision and select a gearbox with low or zero backlash |
| Efficiency | Choose a gearbox with high transmission efficiency to minimize energy loss |
| Environment | Consider the operating environment and select a gearbox with appropriate protection and cooling measures |
| Cost | Balance the performance and cost to achieve the best value for the application |
Applications of High Precision Planetary Gearbox
High Precision Planetary Gearbox is widely used in various industries, including:
- Servo motor systems: used for precise speed control and position positioning in industrial automation equipment, such as robot joint drives, precision machine tool feed mechanisms, semiconductor manufacturing equipment, etc.
- Medical devices: used in high-end medical equipment such as CT scanners, MRI machines, surgical robots, etc. to achieve precise motion control and torque amplification
- Aerospace: used in aircraft landing gear retractable systems, flight control system actuators, satellite attitude adjustment devices, and other applications that require high reliability and precision
- Precision instruments: used in scientific experimental equipment, precision measuring instruments, optical tracking systems, and other scenarios that require high transmission accuracy
- Automotive manufacturing: used in power steering systems for new energy vehicles, electric drive units for electric vehicles, and transmission systems for high-performance racing cars
- Robotics: used in joint drive parts of industrial robots, service robots, and special operation robots
- Logistics automation: used in lifters, conveyor drive units, AGVs (automated guided vehicles), and other automatic warehousing systems
About Our Company

We are a professional manufacturer of power transmission equipment, located in Hangzhou, Zhejiang Province, China. We operate strictly according to the international quality management system standard ISO 9001:2008, and our products have passed the mandatory CCC certification in China and the CE certification of the European Union. Our products are produced according to international IC standards and have reached the advanced level of similar products internationally.
Our Advantages
- Advanced technology and equipment for high-precision manufacturing
- Strict quality control system and professional testing equipment
- Professional technical team and excellent after-sales service
- Customized solutions to meet different customer needs
- Efficient production and delivery processes to ensure timely delivery
- Competitive pricing and strong cost control capabilities
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



