Engineering English
Brushless DC Motor
Mechatronics & Robotics · Electrical Engineering · Last updated: July 30, 2026 · How this entry was written
Definition: A brushless DC motor is an electric motor that uses electronic commutation instead of mechanical brushes to control the rotation of the rotor. It offers higher efficiency, reliability, and torque-to-weight ratio compared to brushed motors.
Example in context
“The robot joint uses a brushless DC motor for precise speed control and maintenance-free operation.”
“Robot eklemi, hassas hız kontrolü ve bakım gerektirmeyen çalışma için fırçasız bir DC motor kullanır.”
Where engineers use it
Brushless DC motors are commonly used in robotic actuators and CNC machines where high precision, low noise, and long life are required. Engineers select them for applications needing efficient torque delivery without mechanical brush wear.
Synonyms: BLDC motor, brushless motor
Antonyms: brushed DC motor
In Electrical Engineering
A brushless DC motor is an electric motor that uses permanent magnets on the rotor and electronic commutation to control stator current. It eliminates brushes, reducing maintenance and increasing efficiency.
“The brushless DC motor in the electric vehicle traction drive provides high torque density and requires no periodic brush replacement.”
Practice: can you use “Brushless DC Motor” at work?
You are designing a collaborative robot arm. The joint must provide smooth motion with high torque density. Explain why a brushless DC motor is preferred over a brushed DC motor.
Show a model answer
“We need to specify a brushless DC motor for this joint actuator.”
“Brushless DC Motor” in 21 languages
| English | Brushless DC Motor |
|---|---|
| Turkish | fırçasız DC motor |
| French | moteur à courant continu sans balais |
| German | bürstenloser Gleichstrommotor |
| Spanish | motor DC sin escobillas |
| Chinese | 无刷直流电机 |
| Arabic | محرك تيار مستمر بدون فرش |
| Portuguese | motor CC sem escovas |
| Russian | бесколлекторный двигатель постоянного тока |
| Japanese | ブラシレスDCモータ |
| Italian | motore DC senza spazzole |
| Vietnamese | động cơ DC không chổi than |
| Hindi | ब्रशलेस डीसी मोटर |
| Thai | มอเตอร์กระแสตรงไร้แปรงถ่าน |
| Indonesian | motor DC tanpa sikat |
| Korean | 브러시리스 DC 모터 |
| Bengali | ব্রাশলেস ডিসি মোটর |
| Dutch | borstelloze DC-motor |
| Swedish | borstlös DC-motor |
| Finnish | harjaton DC-moottori |
| Ukrainian | безщітковий двигун постійного струму |
Frequently asked questions
What does Brushless DC Motor mean in engineering?
A brushless DC motor is an electric motor that uses electronic commutation instead of mechanical brushes to control the rotation of the rotor. It offers higher efficiency, reliability, and torque-to-weight ratio compared to brushed motors. In Mechatronics & Robotics, the term carries a usage-frequency rating of 10/10 in the Engineering English library.
How do you pronounce Brushless DC Motor?
Brushless DC Motor is pronounced /ˈbrʌʃləs diː siː ˈmoʊtər/ (IPA). The Engineering English app plays audio for the term and checks your pronunciation with speech recognition.
How is Brushless DC Motor used in a sentence?
Example from an engineering context: “The robot joint uses a brushless DC motor for precise speed control and maintenance-free operation.”
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