390 Micro Fan Motor DC 7.4V–12V 72W Double Ball Bearing DIY

Power your next DIY project with the DC 390 Micro Fan Motor — a compact, high-efficiency brushed motor engineered for reliability and versatility. Operating across a wide voltage range of 7.4V to 12V DC and delivering up to 72W of output power, this motor is a go-to choice for makers, hobbyists, and engineers building custom fans, vacuum systems, blowers, and more.

Equipped with double ball bearings, this motor runs smoother, cooler, and longer than sleeve-bearing alternatives — minimizing friction and extending service life even under continuous operation.

Key Features

• Wide Voltage Range: Compatible with 7.4V–12V DC power sources for maximum flexibility
• High Power Output: 72W rated power delivers strong, consistent torque and airflow
• Double Ball Bearing Design: Reduces friction, heat, and wear for extended motor life
• Compact 390 Form Factor: Space-saving size fits a wide range of DIY enclosures and builds
• High-Speed Performance: Ideal for fans, turbines, blowers, and vacuum cleaner mechanisms
• Easy Integration: Standard terminal connections for quick wiring into your circuit or project

Ideal Applications

• DIY vacuum cleaners and handheld suction devices
• Custom cooling fans and airflow systems
• RC model aircraft and drones (custom builds)
• Turbine and blower assemblies
• Electronics cooling projects
• Educational robotics and maker projects

Specifications

• Model: 390 Micro Motor
• Operating Voltage: 7.4V – 12V DC
• Rated Power: 72W
• Bearing Type: Double Ball Bearing
• Motor Type: Brushed DC Motor

For guidance on safe electrical practices when working with DC motors and DIY electronics, visit the U.S. Consumer Product Safety Commission (CPSC) for helpful consumer safety resources.

Frequently Asked Questions

Q: What voltage range does the 390 Micro Fan Motor support?

A: The 390 Micro Fan Motor operates on a DC voltage range of 7.4V to 12V, making it compatible with a variety of common power supplies, LiPo battery packs, and DC adapters used in DIY electronics and hobby projects.

Q: Why is the double ball bearing design important in this micro motor?

A: Double ball bearings significantly reduce internal friction compared to standard sleeve bearings. This means the motor runs cooler, produces less noise, and maintains performance over a much longer operational lifespan — ideal for continuous-duty applications like fans and vacuum mechanisms.

Q: What DIY projects is this 390 Micro Fan Motor best suited for?

A: This motor is highly versatile and well-suited for DIY vacuum cleaners, custom cooling fan assemblies, turbine and blower builds, RC model projects, and educational robotics. Its compact 390 form factor and wide voltage range make it easy to integrate into a broad range of maker and engineering builds.

Q: Is this motor easy to wire and install?

A: Yes — the motor features standard terminal connections that can be wired directly into your circuit. It is ready to use once connected to a compatible 7.4V–12V DC power source, making it beginner-friendly while still offering the performance demanded by experienced builders.