DFRobot 8.5x20mm Coreless Micro Motor 4pcs.

Coreless DC motors are a special type of DC motor that do not have an iron core in the rotor. Instead, a copper wire winding in a basket shape (coil) rotates around the outside of a cylindrical magnet. This design offers several advantages. Coreless motors can be built much more compactly than traditional DC motors, as the mechanism saves a lot of space. Since there is no iron core, the motor core has significantly less mass, allowing it to accelerate and decelerate much faster and achieve extremely high speeds. The absence of an iron core in the rotor prevents the cogging torque caused by magnetic induction; therefore, the rotation is smooth, with minimal noise and vibrations. Of course, there are not only advantages to coreless motors. Because the motors are very compact and can reach extremely high speeds, there is a risk of overheating. Thus, coreless motors are less suitable for applications where they need to run continuously for long periods.

Features:

• Coreless design without iron core
• Maximum speed of 60,000 RPM
• Smooth rotation with low vibrations and noise
• Faster acceleration and deceleration

Technical Details:

• Manufacturer: DFRobot
• Manufacturer SKU: FIT0796
• Voltage: 3.7 V
• Current: 700 mA
• Speed: 46,000 RPM
• Motor length: 20 mm
• Motor diameter: 8.5 mm
• Shaft length: 5 mm
• Shaft diameter: 1 mm
• Weight: 28 g

Delivery includes:
4x 8.5x20 mm coreless micro motors.