NEMA 17 High Torque Brushless DC Motor 42mm 24V 105W 6.6A 4000RPM – Grade 8

The high torque brushless DC motor delivers powerful and efficient performance in a compact 42mm NEMA 17 frame.
Designed for reliability, this 24V brushless motor provides smooth speed control, long lifespan, and low noise operation,
making it ideal for automation systems, 3D printers, robotics, and precision machinery.

Key Features

• High efficiency and low noise BLDC design
• Rated torque: 0.25Nm and rated power: 105W
• High speed operation up to 4000RPM
• Durable construction with customizable shaft sizes
• Compatible with brushless DC motor driver and brushless DC motor controller

Technical Specifications

Parameter	Value
No. of Phase	3
No. of Poles	8
Rated Voltage	24V DC
No Load Speed	5800 ±10% RPM
Rated Speed	4000 ±10% RPM
No Load Current (Max.)	2.0A
Rated Torque	0.25Nm
Rated Power	105W
Rated Current (Max.)	6.6A

Wiring and Connections

Terminal	Color	Function
U	Yellow	Phase A
V	Green	Phase B
W	Blue	Phase C
+V	Red	Power Supply +24V
GND	Black	Ground
HA	Yellow	Hall Sensor A
HB	Green	Hall Sensor B
HC	Blue	Hall Sensor C
+5V	Red	Hall Power +5V
CND	Black	Hall Ground

Applications

This brushless DC machine is widely used in:

• Robotics and automation
• CNC and motion control systems
• Medical devices
• Electric valves and pumps
• Precision positioning mechanisms

FAQ

1. How does a brushless motor work?

A brushless DC motor uses electronic commutation instead of brushes and a commutator. Hall sensors detect the rotor position,
and the brushless DC motor controller switches the current in the stator windings to maintain continuous rotation.

2. Brushless DC motor vs brushed DC motor

Unlike brushed motors, BLDC motors have no mechanical contact, reducing wear and improving efficiency, reliability, and service life.

3. What is the relationship between a brushless DC motor and controller?

The controller regulates power flow to the motor phases, controlling speed, torque, and rotation direction accurately.

4. What is a brushless motor speed controller?

It’s an electronic device that manages voltage and current supplied to the BLDC motor to ensure stable operation across various loads.

Download Datasheet

Download the full specification sheet for detailed parameters, wiring guide, and performance curves.

📄 Download PDF Datasheet