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.
| 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 |
| 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 |
- 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
| 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 |
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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.
- 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
- 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.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.