High Precision Planetary Gearbox

TM042 Series High Precision Planetary Gearbox Helical Gear Reducer

The TM042 series high-precision planetary gear reducer is a high-performance helical gear reducer designed for applications requiring extremely high precision and minimal backlash. Also known as a servo motor planetary gear reducer or low-backlash planetary gear reducer, it efficiently reduces input speed while significantly increasing output torque, providing reliable and efficient power transmission within a compact space. It is widely used in demanding industries such as industrial automation, robotics, medical devices, aerospace, and precision instruments.

product Information

Technical Parameters Of TM042 Series High Precision Planetary Gearbox

Advantages

High-precision transmission with extremely low backlash

Utilizing precision-ground gears and optimized tooth profile design, the transmission backlash is ensured to be ≤1 arcmin, meeting the stringent requirements of servo systems for positioning accuracy and repeatability.

Compact structure and high power density

The planetary transmission structure features a rational layout, achieving high torque output in a small volume, suitable for space-constrained automated equipment and robot joints.

High torque capacity

The precision planetary carrier and multi-planet gear load-sharing design effectively distribute the load, improving overall torque output capacity and impact resistance.

Smooth operation and low noise

The helical gear meshing design reduces transmission vibration. Combined with a high-rigidity internal gear ring and precision assembly, it ensures smooth operation and noise levels below 65dB.

High transmission efficiency, energy-saving and reliable

Single-stage transmission efficiency can reach over 98%, reducing energy loss, resulting in low temperature rise during long-term operation and extending service life.

High rigidity and fast response

The high-rigidity structural design enhances torsional stiffness and reduces elastic deformation, ensuring the stability of the servo system's rapid start-stop and dynamic response.

Modular design for easy installation

Input is compatible with mainstream servo motors, and the output connection plate (flange) is standardized for easy integration and equipment assembly.

High durability and low maintenance

Made with high-quality alloy steel, carburizing and quenching, and precision grinding processes, resulting in gears with good wear resistance, a long overall lifespan, and suitability for continuous high-load operation.

WHAT DO YOU WANT TO KNOWInternal Structure

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① Precision Gears

These are planetary gears, typically made of high-strength alloy steel and precision ground. They mesh with the sun gear and internal ring gear to transmit power. Their high-precision machining ensures low backlash, high transmission efficiency, and stable operating performance.
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② Precision Planetary Carrier

The planetary carrier supports and holds multiple planetary gears, maintaining their correct relative positions during operation. It converts the rotational motion of the planetary gears into torque output on the output shaft, while also bearing significant radial and axial loads, making it a key structural component of the transmission system.
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③ Inner Gear Ring

Also known as a ring gear, it is fixed inside the housing and meshes with the planetary gears externally. As a "stationary" or "fixed" element of the planetary gear system, it helps achieve the reduction ratio and improves overall structural rigidity, reducing vibration and noise.
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④ Input Shaft

Connects to the motor or other power source, transmitting input speed and torque to the central sun gear. The high-precision design of the input shaft ensures coaxiality and stability during transmission, preventing wear or efficiency loss due to eccentricity.
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⑤ Connection board

This typically refers to the mounting flange or connecting plate at the output end, used to mechanically connect the gearbox to the load device (such as robot joints, servo motors, etc.). It ensures a secure installation, facilitates integration into automation systems, and supports various installation methods.

These components work together to enable the TM042 series to achieve high-precision, low-backlash, and high-torque output efficient transmission, widely used in industrial automation, robotics, and precision instruments.

Product Application

Industrial Robot Joint Drives
CNC Machine Tool Feed Systems
Automated Assembly Lines
Semiconductor Manufacturing Equipment
Medical Equipment
D Printers and Laser Cutting Machines
AGV/AMR Mobile Robot Steering System
Aerospace Testing Equipment
Packaging and Labeling Machinery
Scientific Instruments and Optical Platforms

How to choose the right High Precision Planetary Gearbox

1. Define Input Power Source Parameters

Motor Type: Confirm whether it is a servo motor, stepper motor, or other type, ensuring interface compatibility.

Input Power (kW or W): The rated power of the reducer should be ≥ the motor output power.

Input Speed (rpm): Must be within the reducer's maximum allowable input speed range.
2. Determine the Required Reduction Ratio

Calculate the reduction ratio based on the required output speed of the load:

Reduction Ratio = Input Speed ÷ Output Speed

Common ratios include 3:1, 5:1, 10:1, etc., with single-stage or multi-stage planetary structures available.
3. Calculate Output Torque Requirements

Continuous Torque: Ensure the reducer's rated output torque ≥ the torque required by the actual load.

Peak Torque: Must be able to withstand short-term overloads (such as start-stop, impact), generally not exceeding 80% of the reducer's maximum allowable peak torque.
4. Control Backlash Requirements

For high-precision applications (such as robots, CNC), it is recommended to select an ultra-low backlash model with ≤1 arcmin.

Standard automated equipment can accept a backlash of 1–3 arcmin.

Smaller backlash results in higher positioning accuracy, but also increases cost.
5. Matching Installation Interfaces

Input End: Confirm compatibility with servo motor flange size (e.g., NEMA 23/34), shaft diameter, keyway, or clamping method (e.g., RCF, clamping ring).

Output End: Select output flange size, hole spacing, and shaft extension type (solid/hollow shaft) based on the load connection method.
6. Considering the Operating Environment

Protection Rating: IP65 or higher is recommended for humid and dusty environments.

Lubrication Method: Lifetime lubrication and maintenance-free systems are more suitable for enclosed equipment operating for extended periods.

Temperature Range: Special greases or materials are required for extreme environments.
7. Evaluating Rigidity and Inertia Matching

Torsional Rigidity: High rigidity reduces elastic deformation and improves response speed.

Inertia Ratio: Load inertia / motor inertia is recommended to be ≤10:1. An excessively high ratio will affect control stability; a reducer can help match the inertia.

Talk To Our Team Today

Our high precision planetary gearbox integrates seamlessly with a range of core motion components, and we manufacture all these products in-house for full system compatibility. We produce servo motors and stepper motors with standard mounting interfaces for direct coupling to our gearboxes. Our product line also includes precision gear racks, helical gears, and spur gears for reliable power transmission. Additionally, we supply timing pulleys and timing belts in various pitches for synchronization applications, as well as linear guides for smooth and accurate linear motion. This complete offering ensures optimal performance, precise matching, and simplified sourcing for automation, robotics, and industrial equipment.

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TM042 Series High Precision Planetary Gearbox Helical Gear Reducer

Technical Parameters Of TM042 Series High Precision Planetary Gearbox

Advantages

High-precision transmission with extremely low backlash

Compact structure and high power density

High torque capacity

Smooth operation and low noise

High transmission efficiency, energy-saving and reliable

High rigidity and fast response

Modular design for easy installation

High durability and low maintenance

WHAT DO YOU WANT TO KNOWInternal Structure

Product Application

Industrial Robot Joint Drives

CNC Machine Tool Feed Systems

Automated Assembly Lines

Semiconductor Manufacturing Equipment

Medical Equipment

D Printers and Laser Cutting Machines

AGV/AMR Mobile Robot Steering System

Aerospace Testing Equipment

Packaging and Labeling Machinery

Scientific Instruments and Optical Platforms

How to choose the right High Precision Planetary Gearbox

1. Define Input Power Source Parameters

2. Determine the Required Reduction Ratio

3. Calculate Output Torque Requirements

4. Control Backlash Requirements

5. Matching Installation Interfaces

6. Considering the Operating Environment

7. Evaluating Rigidity and Inertia Matching

Talk To Our Team Today

LET'S DISCUSS YOUR PROJECT

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