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How to Choose a Brushed DC Motor for Industrial Applications in 2026: A Practical Guide for Engineers
Views: 0 Author: Site Editor Publish Time: 2026-03-13 Origin: Site
Brushed DC motors are often considered a traditional technology, but they continue to play an important role in many industrial systems. Even as brushless motors gain popularity in robotics and electric vehicles, brushed motors remain widely used in applications that require simplicity, cost efficiency, and reliable torque control.
In 2026, industries such as automation equipment, medical devices, pumps, and compressor systems still rely heavily on brushed DC motors for their predictable behavior and straightforward control requirements.
However, choosing the right brushed motor is not always as simple as selecting a voltage and power rating. Engineers must consider multiple technical factors to ensure long-term performance and reliability.
This guide explores the key parameters engineers should evaluate when selecting a brushed DC motor for industrial applications.
Why Brushed DC Motors Are Still Widely Used
Despite the rapid development of brushless technologies, brushed DC motors remain attractive for many industrial applications.
Several characteristics explain their continued popularity:
simple control systems
low initial cost
high starting torque
easy speed regulation
straightforward maintenance
Unlike brushless motors, brushed motors do not require complex electronic commutation. A basic DC power supply can drive the motor directly, making system design simpler and more economical.
For small and medium industrial equipment, this simplicity often outweighs the efficiency advantages of brushless alternatives.
Key Factors When Selecting a Brushed DC Motor
Selecting the right motor requires understanding both electrical and mechanical requirements.
1. Motor Size and Frame Diameter
Motor diameter often determines torque capability and thermal capacity.
Common industrial brushed motor frame sizes include:
42 mm motors
50 mm motors
60 mm motors
63 mm motors
80 mm motors
Larger frame diameters generally provide higher torque and improved heat dissipation. For example, motors such as 63ZYT or 80ZYT are frequently used in applications requiring higher continuous torque output.
Engineers must balance motor size with available installation space inside the equipment.
2. Rated Voltage
Industrial brushed DC motors are typically available in multiple voltage options, including:
12V
24V
48V
higher custom voltages
Voltage selection affects current draw, efficiency, and system power supply design.
Higher voltage systems generally reduce current and improve electrical efficiency, which can be beneficial for larger motors or long cable runs.
3. Torque Requirements
Torque requirements should be evaluated in three categories:
starting torque
rated torque
peak torque
Many industrial machines require high starting torque to overcome load inertia. Brushed motors naturally provide strong starting torque, which makes them suitable for equipment such as conveyors, pumps, and actuators.
Proper torque margin also helps prevent overheating during continuous operation.
4. Speed Range
Motor speed is determined by the relationship between voltage and back EMF.
In many cases, engineers combine brushed motors with planetary or spur gearboxes to achieve the desired output speed and torque.
5. Duty Cycle and Thermal Performance
Another important consideration is the motor’s duty cycle.
Motors may operate under:
continuous duty
intermittent duty
short-cycle operation
Continuous-duty motors require better cooling and more robust winding insulation. Larger motors often manage heat more effectively because of their increased surface area.
Manufacturers with strong stator winding and impregnation processes can usually provide motors with more stable long-term thermal performance.
Brush and Commutator Quality
The defining feature of brushed motors is the brush-commutator interface.
This interface directly influences:
electrical efficiency
motor lifespan
maintenance interval
noise level
High-quality brush materials reduce wear and ensure consistent electrical contact.
Commutator precision is equally important. Poor commutator surface finishing can increase sparking and reduce motor life.
Manufacturers that carefully control rotor machining and balancing processes typically achieve better brush life and smoother motor operation.
Noise and Vibration Considerations
Although brushed motors are mechanically simple, they can generate vibration and noise if not properly designed.
Important factors influencing NVH performance include:
rotor balance
commutator alignment
brush pressure
bearing quality
High-quality manufacturing processes help minimize vibration and extend component life.
Companies that focus on rotor precision and stator consistency—such as Modar Motor—often deliver more stable performance across large production batches.
Customization Options
Industrial applications often require customized motor features.
Common customization options include:
shaft length and diameter
mounting flange design
special voltage ratings
integrated gearboxes
encoder integration
Customizable brushed motors allow engineers to adapt standard motor platforms to specific equipment requirements.
This flexibility is one reason brushed motors remain widely used across many industries.
Brushes gradually wear during operation and must eventually be replaced. However, in many industrial environments, this maintenance requirement is acceptable because:
motors are easy to service
spare parts are inexpensive
replacement procedures are simple
Proper brush material selection and commutator design can significantly extend service intervals.
Common Mistakes When Choosing Brushed Motors
Engineers sometimes make several common mistakes during motor selection:
underestimating starting torque requirements
ignoring thermal limits in continuous operation
selecting motors based only on voltage and speed
overlooking mounting and shaft compatibility
failing to account for maintenance intervals
A thorough evaluation of both electrical and mechanical requirements helps avoid these issues.
Future Outlook for Brushed Motors
Even with the rapid growth of brushless motor technology, brushed DC motors continue to hold a stable position in many industrial sectors.
In 2026, they remain especially relevant for:
cost-sensitive equipment
compact automation devices
auxiliary industrial machinery
legacy system replacements
Advances in manufacturing precision and material quality are helping brushed motors remain competitive in applications where simplicity and reliability are valued.
Conclusion
Choosing the right brushed DC motor requires more than simply selecting a voltage rating. Engineers must evaluate torque requirements, thermal performance, mechanical dimensions, and manufacturing quality.
When these factors are properly balanced, brushed DC motors can provide reliable and cost-effective motion solutions for a wide range of industrial applications.
For many engineers and equipment designers, brushed motors remain a practical and proven choice—even in an increasingly brushless world.
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