This 40W 24V frameless brushless DC motor is designed for high-precision, low-speed applications requiring smooth and consistent torque. Its frameless construction reduces system weight and offers greater design flexibility. Paired with a compatible ESC, it ensures efficient, reliable performance with precise control where it matters most.
Specification
Model |
BLDC-WK8110 |
Rated Power |
42W |
Nominal Voltage |
24V |
Nominal Current |
1.75A |
Nominal Torque |
1.6 Nm |
Nominal Speed |
130 rpm |
Max. Speed |
290 rpm |
Stall Torque |
2 Nm |
Stall Current |
3A |
Winding Turns of Motor |
30T |
Phase to Phase Resistance |
3Ω |
Phase to Phase Inductance |
31.5Mh |
Speed Constant |
11 rpm/V |
Torque Constant |
1.13 Nm/A |
Rotor Inertia |
2860 gcm2 |
Number of Pole Pairs |
21 |
Motor Weight |
206 g |
Working Temperature |
-20~80℃ |
Max. Demagnetize Temperature |
120℃ |
Features
- The frameless design enables easy integration, saving space and allowing flexible custom designs.
- With a speed of 130 rpm, this frameless BLDC motor is ideal for precise, smooth low-speed applications.
- Operating at 24V, it delivers 40W of power with efficient performance and minimal heat.
- The brushless design reduces maintenance, wear, and increases durability.
- Its frameless build and low speed suit direct-drive systems, removing the need for gears.
- Frameless motors allow custom housing design, perfect for DIY and specialized projects.
Dimension (Unit: mm)

Applications
Q: How to choose the right frameless BLDC motor for the application?
A: Choosing the right frameless BLDC motor involves evaluating several key parameters based on your application's requirements. Start by defining the space constraints — outer diameter, inner diameter, and length. Then, determine the required continuous and peak torque, target speed, and duty cycle. Electrical characteristics such as operating voltage, current limits, and the motor’s back-EMF constant (Ke) must match your driver or controller. Consider thermal management early: frameless motors rely on the integration structure for heat dissipation. Finally, check for compatibility with encoders, bearings, and cooling methods (air, passive, or liquid). Always consult with the motor manufacturer for performance curves and integration support.