Keszoox
35mm BLDC Brushless Motor DC 7.4V 3200RPM | High Torque | 5–12V | PWM Driver Included | CW Rotation
35mm BLDC Brushless Motor DC 7.4V 3200RPM | High Torque | 5–12V | PWM Driver Included | CW Rotation
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35mm BLDC Brushless Motor — DC 7.4V | 3200RPM | High Torque | PWM Driver Included
A compact 35mm diameter BLDC (Brushless DC) motor with integrated PWM driver, delivering 3200RPM at the rated 7.4V supply with a wide operating voltage range of 5V–12V. Brushless DC motors offer significant advantages over brushed motors in applications requiring long service life, high efficiency, and precise speed control — the absence of brushes eliminates the primary wear mechanism, and the electronic commutation enables smooth, controllable speed across the full RPM range. The 6mm shaft with 5mm flange provides a robust mechanical interface for gears, pulleys, and couplings. The included PWM driver simplifies speed control from any microcontroller with a PWM output. CE certified.
Specifications
| Motor Diameter | 35mm |
| Shaft Diameter | 6mm (with 5mm flange) |
| Wire Length | ~35mm |
| Rated Voltage | DC 7.4V |
| Operating Voltage Range | DC 5V – 12V |
| No-Load Speed | 3200 RPM (at 7.4V) |
| Output Power | <18.65W |
| Rotation Direction | CW (clockwise, viewed from shaft end) |
| Driver | PWM driver included |
| Certification | CE |
| Origin | Mainland China |
BLDC vs. Brushed Motor — Why Choose Brushless
| Property | BLDC (this product) | Brushed DC Motor |
|---|---|---|
| Service life | Very long (no brush wear) | Limited (brush wear) |
| Efficiency | High (85–95%) | Moderate (75–85%) |
| Speed control | Smooth, precise (PWM + ESC) | Simple (voltage control) |
| Noise | Low (no brush arcing) | Higher (brush arcing) |
| Maintenance | None (no brushes to replace) | Periodic brush replacement |
| Cost | Higher (driver required) | Lower (direct voltage control) |
| Best for | Long-life, high-efficiency, precision control | Simple, low-cost applications |
Speed vs. Voltage Reference
| Supply Voltage | Approximate Speed |
|---|---|
| 5V | ~2160 RPM |
| 7.4V (rated) | 3200 RPM |
| 12V | ~5180 RPM |
Speed is approximately proportional to voltage (Kv constant). Actual speed varies with load.
Key Features
- ✅ 35mm compact diameter — fits in tight spaces in robotics, drones, and custom mechanical assemblies
- ✅ 3200RPM at 7.4V — high speed for fan, pump, and propulsion applications
- ✅ 5V–12V operating range — compatible with 1S–3S LiPo batteries and standard DC power supplies
- ✅ PWM driver included — complete speed control solution, connect PWM signal from Arduino or ESC
- ✅ 6mm shaft with 5mm flange — robust mechanical interface for gears, pulleys, and propellers
- ✅ No brush wear — long service life for continuous-duty applications
- ✅ CE certified — meets European electrical safety standards
Common Applications
- Small drone and quadcopter motor
- Robotics joint and wheel drive motor
- RC car and boat propulsion
- Cooling fan and blower motor
- Pump and fluid circulation motor
- Camera gimbal stabilisation motor
- 3D printer extruder and axis motor
- DIY electric vehicle and scooter motor
PWM Speed Control
Connect the included PWM driver between the power supply and motor. Control motor speed by varying the PWM duty cycle from your microcontroller:
- 0% duty cycle = motor stopped
- 50% duty cycle = approximately half speed
- 100% duty cycle = full speed
Use Arduino’s analogWrite(pin, value) (0–255) to set the PWM duty cycle. A value of 128 gives approximately 50% duty cycle and half speed.
Frequently Asked Questions
Q: Can I reverse the rotation direction?
A: The motor is specified as CW rotation. To reverse direction, swap any two of the three motor phase wires at the driver output. Note: the included driver may not support bidirectional control — use a bidirectional ESC or H-bridge driver for reversible applications.
Q: What is the stall torque?
A: Stall torque is not specified. For torque-critical applications, measure the stall torque under your load conditions or contact us for detailed motor specifications.
Package Contents
- 1× 35mm BLDC Brushless Motor
- 1× PWM Driver
