24mm 3V DC Micro Motor RF/RK-320 For Electric Lock Toy Fan Small
Pump
24mm 3V micro DC motor RF-320 (precious metal brush) and RK-320
(carbon brush motor) — your versatile micro DC motor solution for
electric lock, toy, fan, small pump and smart home applications.
The RF-320 motor delivers 2900 RPM at 3V with 20.1mm body length
and 25g weight, ideal for VCD motor, electric valve motor and
office automation. The RK-320 carbon brush motor delivers 3400 RPM
for high-speed toy motor and small pump motor applications. Both
models operate at 1-4V voltage range with 2.0mm standard shaft.
Available in 24mm DC motor form factor with 2-M2*0.4 mounting. The
carbon brush version offers superior durability for continuous duty
fan motor and small pump motor applications. OEM and ODM
customization available.
Specifications
Mechanical:
| Item | Value |
|---|
| Body Diameter | φ24.4 mm |
| Body Length | 20.1 mm |
| Shaft Diameter | φ2.0 mm |
| Shaft Length | L±0.5 (customizable) |
| Mounting Hole | 2-M2*0.4 |
| Mounting Spacing | 11.8 mm |
| Bolt Circle | φ11.8 mm |
| End Cap Diameter | φ15 mm |
| End Cap Outer | φ17.2 mm |
| Body Height | 18.1 mm |
| Weight | 25 g |
| Direction | CCW |
Electrical:
| Model | Voltage | No-Load Speed | No-Load Current | Max Efficiency Speed | Max Efficiency Torque | Max Efficiency Output | Stall Torque | Stall Current |
|---|
| RF-320CH-12400 | 1-4V | 3.0V | 2900 r/min | 0.016A | 2379 r/min | 0.49 mN.m | 0.11W | 25.3 g.cm |
| RF-320CH-14310 | 1-4V | 3.0V | 3400 r/min | 0.021A | 2759 r/min | 0.60 mN.m | 0.18W | 34 g.cm |
Key Features
- 24mm diameter * 20.1mm body, 25g weight
- Dual brush options: Precious metal (RF) or Carbon (RK)
- 1-4V low voltage range, 2900-3400 RPM
- Standard φ2.0mm shaft, length customizable
- Mounting: 2-M2*0.4 on 11.8mm spacing
- Counter-clockwise rotation
- OEM/ODM customization supported
RF/RK-320CH/SH 24 mm Micro Brush DC Electric Motor Data Table
| Model | Voltage | No Load | RATED LOAD | Stall |
| Operating range | Rated | Speed | Current | Speed | Current | Torque | Output | Efficiency | Torque | Current |
| VDC | RPM | A | RPM | A | mN.m | gf.cm | W | % | mN.m | gf.cm | A |
| RF-320CH-12400 | 4.9 - 9.0 | 6 | 14000 | 0.28 | 11910 | 1.6 | 4.46 | 45.5 | 5.56 | 58.0 | 29.9 | 305 | 9.1 |
| RF-320CH-14310 | 4.5 - 12.0 | 9 | 11300 | 0.14 | 9540 | 0.76 | 4.06 | 41.3 | 4.04 | 59.1 | 26 | 265 | 4.1 |
All technical paramter can be customized as your need. Note:1 mNm = 1Ncm = 10.2 gcm |
SEO Keywords
RF-320 motor, RK-320 motor, 24mm DC motor, 3V motor, electric lock
motor, toy motor, fan motor, small pump motor, micro DC motor,
20.1mm motor, 25g motor, 2900 RPM, 3400 RPM, carbon brush motor,
precious metal brush motor, low voltage motor, valve motor, 1-4V
motor, OEM motor
Custom OEM/ODM — Need a Different Specification?
If the standard RF/RK-320 series does not match your exact
requirements, our engineering team can design and manufacture a
custom motor tailored to your application.
What We Customize
- Voltage: Custom nominal voltage (0.5V - 12V range)
- Speed: Custom RPM to match your load requirements
- Torque: Custom winding for higher starting or running torque
- Shaft: Diameter, length, D-cut, flat, keyway, gear integration
- Mounting: Custom hole pattern, flange, bracket, cup mount
- Wire & Connector: Custom lead wire length and connector type
- Brush Type: Precious metal or carbon brush selection
- Body Length: Adjust body length for specific requirements
- Custom Branding: Laser marking, label design
How to Request Custom Motor:
- Step 1 — Send Your Requirements Describe your application: voltage,
speed, torque, load type, duty cycle, dimensions, and any mounting
constraints.
- Step 2 — Engineering Analysis Our R&D team evaluates
feasibility and proposes optimal winding specs and mechanical
configuration.
- Step 3 — Sample Production We manufacture samples for your testing
and performance validation.
- Step 4 — Mass Production Upon approval, we proceed to bulk
manufacturing with consistent quality control.
Contact us now — our engineers will respond within 24 hours.
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