Mini Coreless DC Motor 3.7V 40000-50000 RPM – 612 614 716

DC 3.7V Mini Coreless Motor | 612 / 614 / 716 Sizes | 40,000–50,000 RPM

Power your RC vehicles, micro drones, vibration modules, and DIY electronics projects with this high-speed mini coreless motor. Running at an impressive 40,000–50,000 RPM on just 3.7V DC, this hollow-cup (coreless) motor delivers efficient, smooth, and responsive performance in an ultra-compact form factor.

Available in three popular sizes — 612, 614, and 716 — making it easy to find the right drop-in replacement or upgrade for your build. The coreless design eliminates the iron core from the rotor, resulting in lower inertia, faster acceleration, and reduced energy consumption compared to standard brushed motors.

Key Features

• Voltage: 3.7V DC
• Speed: 40,000–50,000 RPM (no-load)
• Available Sizes: 612, 614, 716
• Coreless (Hollow Cup) Design: Lower rotor inertia for faster start/stop response
• Compact & Lightweight: Ideal for space-constrained RC and electronics applications
• Efficient Power Draw: Maximizes battery life in portable applications
• Versatile Use: Compatible with micro RC cars, mini drones, hobby projects, vibration devices, and more

What Is a Coreless Motor?

A coreless (hollow cup) motor uses a self-supporting coil as the rotor rather than a traditional iron-core design. This means significantly less rotational mass, allowing the motor to spin up and respond almost instantaneously — a crucial advantage in precision RC and robotics applications. Learn more about motor design and electronics standards at NIST.gov.

Common Applications

• Micro RC cars and trucks
• Mini quadcopters and micro drones
• Robotics and hobby electronics
• Vibration feedback modules
• DIY motor replacement projects

Choose Your Size

Select from 612, 614, or 716 configurations to match your project's exact motor bay dimensions. When in doubt, measure the diameter and length of your existing motor before ordering.

Frequently Asked Questions

Q: What does "coreless" or "hollow cup" mean in a mini DC motor?

A: A coreless (hollow cup) motor replaces the traditional iron rotor core with a lightweight, self-supporting wire coil. This dramatically reduces rotational inertia, so the motor accelerates and decelerates much faster, runs more efficiently, and produces less electrical noise — making it ideal for RC vehicles, micro drones, and precision hobby electronics.

Q: Which size should I choose — 612, 614, or 716?

A: The numbers refer to the motor's diameter and length in millimeters. For example, "716" indicates approximately 7mm in diameter and 16mm in length. Measure your existing motor or check your device's motor bay specifications before selecting a size to ensure a proper fit.

Q: What voltage and current should I use with this coreless motor?

A: This motor is rated for 3.7V DC, which matches standard single-cell LiPo batteries commonly used in micro RC and drone applications. Operating within the rated voltage ensures optimal performance and longevity. Exceeding the rated voltage can shorten motor life.

Q: What RC or hobby devices is this motor compatible with?

A: These mini coreless motors are widely used in micro RC cars, mini quadcopters, small hobby robots, vibration modules, and other compact electronic devices that require high-speed, low-voltage DC motors. Always verify the motor diameter, length, and shaft size match your device before installing.