42mm brushless planetary gear motor – Product Overview
![42mm brushless gear motor]( "42mm brushless gear motor")
Compact BLDC Planetary Gear Motor for Precision Motion Control
The 42mm brushless planetary gear motor is designed for applications where a standard DC motor cannot provide the required torque or controlled output speed directly. The integrated planetary gearbox reduces motor speed while increasing output torque, making the motor suitable for precise motion control and compact mechanical transmission systems.
Compared with brushed DC gear motors, this BLDC planetary gear motor offers longer service life, lower maintenance requirements and better control performance. Because the motor uses electronic commutation rather than carbon brushes, it is more suitable for applications requiring frequent start-stop operation, stable speed regulation and long working life.
24V Brushless DC Motor Platform with Hall Sensor Feedback
42mm brushless planetary gear motor uses a 24V DC brushless motor platform, which is commonly used in automation equipment, intelligent devices and industrial control systems. The base motor data shows a no-load speed of approximately 6352rpm and rated speed of approximately 5400rpm before gearbox reduction.
42mm brushless planetary gear motor also includes Hall sensor feedback, which allows the controller to detect rotor position and achieve more reliable commutation. Hall feedback is especially useful for applications that require better startup performance, speed control or direction control.
Wide Gear Ratio Range from 3.5:1 to 864:1
One of the most important advantages of this product is the wide planetary gearbox ratio range. The representative table includes ratios such as:
3.5:1 and 4:1 for Higher Output Speed
These lower ratios are suitable for applications that need relatively high output speed while still benefiting from torque improvement. Output speeds can reach approximately 1543rpm or 1350rpm, depending on the selected ratio.
16:1 to 64:1 for Balanced Speed and Torque
Medium ratios are suitable for automation modules, small actuators, precision adjustment mechanisms and compact transmission systems that require a balance between speed and torque.
144:1 to 256:1 for Low-Speed High-Torque Output
Higher ratios are suitable for applications requiring slower movement, stronger holding force and controlled mechanical positioning.
576:1 and 864:1 for Very Low-Speed Motion
Very high reduction ratios are suitable for applications requiring extremely low output speed and high torque, such as precision positioning, locking mechanisms, slow adjustment systems and compact actuator modules.
Planetary Gearbox Stages for Different Torque Levels
The gearbox is available with different reduction stages. According to the representative data, 42mm brushless planetary gear motor can be configured with 1-stage, 2-stage, 3-stage or 4-stage planetary gearbox structures.
A lower-stage gearbox is generally more compact and suitable for higher speed. A higher-stage gearbox provides larger reduction ratio and higher output torque but increases total motor length. This allows OEM engineers to choose the correct balance between output speed, torque, space and gearbox length.
Representative Output Torque and Length Options
The representative parameters show that the output torque can range from approximately 0.2N·m to 39.7N·m, depending on gear ratio and gearbox stage. The total motor length varies from approximately 88mm to 122.5mm, depending on the gearbox configuration.
This range makes 42mm brushless planetary gear motor series highly flexible for OEM projects. Customers can select a shorter motor for compact equipment or a higher-ratio version for applications requiring stronger torque and slower output speed.
Engineering Selection Notes
Select Gear Ratio Based on Final Output Speed
For brushless planetary gear motors, gear ratio selection is one of the most important steps. The motor itself runs at high speed, while the planetary gearbox reduces the speed to match the application.
Before choosing a model, customers should confirm the required final output speed. For example, a high-speed rotating mechanism may use a lower ratio, while a slow actuator or positioning device may require a higher reduction ratio.
Check Required Output Torque and Load Type
The required torque depends on load weight, friction, acceleration, transmission structure and working angle. For actuator systems, starting torque and peak torque should also be considered.
If the application includes frequent start-stop operation, reverse rotation or impact load, the selected gearbox should have enough torque margin. Modar Motor can help evaluate the proper ratio and gearbox stage according to the customer's working conditions.
Match the Motor with a Suitable BLDC Controller
Because this is a brushless DC motor, it must be matched with a suitable BLDC controller. The controller should support the motor voltage, current, Hall sensor signals and control method.
Customers should confirm whether the application needs speed control, direction control, PWM input, analog input, braking function or communication interface. This information helps select a better motor and controller solution.
Consider Gearbox Backlash and Positioning Accuracy
Planetary gearboxes provide compact structure and good torque density, but gearbox backlash should still be considered in precision positioning applications. If the equipment requires high repeatability or accurate angular positioning, customers should discuss backlash requirements before sample confirmation.
Review Duty Cycle and Heat Rise
The motor and gearbox should be selected according to actual working time, load torque, ambient temperature and installation condition. For continuous operation or high-load intermittent operation, heat rise should be reviewed carefully during testing.
Customization Options
Gear Ratio Customization
The planetary gearbox can be configured with different ratios to match the required output speed and torque. Standard representative ratios include 3.5, 4, 6, 16, 24, 36, 64, 144, 256, 576 and 864, and other ratio options may be evaluated according to the project.
Output Shaft Customization
The output shaft can be customized according to the customer’s mechanical connection method. Common options include round shaft, D-cut shaft, flat shaft, threaded shaft, keyway shaft, extended shaft or special machined shaft.
Mounting Interface Customization
The front flange, mounting holes, locating diameter and gearbox housing interface can be customized to match the customer's equipment structure.
Hall Sensor and Wiring Customization
Hall signal wiring, cable length, connector type, wire outlet direction and wire definition can be customized according to the customer's controller and assembly requirements.
Voltage, Speed and Torque Customization
Although the representative model is based on 24V DC, Modar Motor can evaluate customized voltage, speed, torque and motor winding requirements according to the customer's application and order quantity.
Gearbox Material and Lubrication Options
For different load and lifetime requirements, gearbox material, lubrication method and structural details can be discussed during the customization stage.
Key Product Advantages
Brushless Motor for Longer Service Life
The brushless DC motor structure avoids brush wear, making it suitable for applications that require longer lifetime, frequent operation and lower maintenance.
Planetary Gearbox for High Torque Density
The planetary gearbox provides compact structure and strong torque transmission. It is suitable for applications where space is limited but higher output torque is required.
Wide Speed and Torque Coverage
With gear ratios from approximately 3.5:1 to 864:1, 42mm brushless planetary gear motor series can provide both high-speed output and very low-speed high-torque output.
Hall Feedback for Better Control
The Hall sensor feedback helps improve startup performance, direction control and speed control when matched with a suitable BLDC controller.
Compact 42mm Frame for OEM Integration
The 42mm brushless planetary gear motor is suitable for compact equipment, precision devices and automation modules where installation space is limited.
OEM Customization Support from Modar Motor
Modar Motor supports customized BLDC planetary gear motor solutions, including voltage, ratio, speed, torque, shaft, flange, Hall wiring and connector design.
Typical Application of 42mm brushless planetary gear motor
Automation Equipment
This 42mm brushless planetary gear motor can be used in automation equipment requiring compact size, stable output and accurate motion control. Typical uses include feeding mechanisms, rotating modules, indexing devices, small conveyors and automatic adjustment systems.
Robotics and Intelligent Devices
42mm brushless planetary gear motor is suitable for small robotic joints, grippers, mobile robot auxiliary mechanisms and intelligent equipment where compact gear reduction and controlled motion are required.
Electric Actuators
The planetary gearbox allows 42mm brushless planetary gear motor to provide lower speed and higher torque, making it suitable for compact electric actuators, valve actuators, locking mechanisms and mechanical adjustment units.
Medical and Laboratory Equipment
Because the brushless motor offers longer life and stable operation, it can be used in certain medical devices, laboratory instruments, sample handling systems, precision pumps and adjustment modules.
Smart Home and Commercial Devices
42mm brushless planetary gear motor can be applied in smart locks, automatic curtains, smart furniture, vending machines, service devices and other compact intelligent products requiring quiet and controlled motion.
Customized OEM Motion Modules
Many OEM customers use brushless planetary gear motors as the core component inside customized motion modules. Modar Motor can support sample evaluation, ratio selection and parameter optimization according to customer test feedback.
Technical Specifications of 42mm brushless planetary gear motor
The following technical data applies to the 42mm Brushless planetary gear Motor.
Electrical Parameters
Rated voltage options: 24V etc.
Rated speed: 6~1543rpm(customized)
Rated Torque: 0.2~39.7N.m(customized)
Output power range: 26~36W(customized)
Mechanical Parameters
Optional Configurations
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brushless dc motor specification.pdf
| Motor Characteristics |
![42mm brushless gear motor specification]( "42mm brushless gear motor specification") |
| 42mm brushless planetary gear motor Drawing |
![42mm brushless gear motor drawing]( "42mm brushless gear motor drawing") |
| 42mm brushless planetary gear motor Performance Curve |
![42mm brushless gear motor performance curve]( "42mm brushless gear motor performance curve") |
| 42mm brushless planetary gear motor wiring diagram |
![42mm brushless gear motor wiring]( "42mm brushless gear motor wiring") |
FAQ –42mm brushless planetary gear motor
What is a brushless planetary gear motor?
A brushless planetary gear motor combines a BLDC motor with a planetary gearbox. The BLDC motor provides high-speed rotation, while the planetary gearbox reduces speed and increases output torque.
What voltage does 42mm brushless planetary gear motor use?
The representative model uses a 24V DC brushless motor platform. Other voltage requirements may be evaluated according to customer application and order quantity.
What gear ratios are available?
The representative gear ratios include approximately 3.5, 4, 6, 16, 24, 36, 64, 144, 256, 576 and 864. The final ratio should be selected according to required output speed and torque.
What is the output torque range?
According to the representative data, the output torque range is approximately 0.2N·m to 39.7N·m, depending on the gear ratio and gearbox stage.
Does 42mm brushless planetary gear motor include Hall sensors?
Yes. The product information includes Hall sensor wiring and motor connection details. Hall feedback can help with commutation, startup and speed control when used with a suitable BLDC controller.
Is 42mm brushless planetary gear motor suitable for robotics?
Yes. 42mm brushless planetary gear motor can be used in robotics and intelligent equipment, especially where compact size, controlled speed and higher output torque are required.
Can the output shaft be customized?
Yes. Modar Motor can customize shaft length, diameter, flat shaft, D-cut, threaded shaft, keyway or special shaft structures according to customer drawings.
Can the gearbox ratio be customized?
Yes. Gearbox ratio can be selected or customized according to the required output speed, torque and installation space.
What information should I provide for motor selection?
Please provide voltage, required output speed, required torque, duty cycle, load type, shaft drawing, mounting dimensions, controller information, working environment and expected quantity.
Does Modar Motor support OEM customization?
Yes. Modar Motor supports OEM and ODM customization for brushless planetary gear motors, including voltage, gear ratio, shaft, mounting interface, Hall wiring, connector, speed, torque and performance parameters.
