8mm Coreless DC Motor – 20mm Type Model NFP-D8620-3665

Coreless Micro Motor Model NFP-D8620-3665 Data Sheet

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Coreless DC motors do away with the laminated iron core in the rotor. Instead, the rotor windings are wound in a skewed, or honeycomb, fashion to form a self-supporting hollow cylinder or “basket.” For this reason, it is also called ironless. Because there is no iron core to support the windings, they are often held together with epoxy.

Model	NFP-D8620-3665-1-3.4	NFP-D8620-3665-2-3.4	NFP-D8620-3665-3-7.4
Voltage	3.4V	3.4V	7.4V
Terminal resistance	0.4Ω	0.2Ω	1Ω
No-load-speed	44,000rpm	51,500rpm	46,000rpm
No-load-current	135mA	205mA	140mA
Stall torque	64.6g.cm	89.36g.cm	108.8g.cm
Stall current	9,390mA	15,180mA	7,410mA
Max output power	7.293W	11.807W	12.841W
Max efficiency	73%	73%	72%
Torque constant	7g.cm/A	6g.cm/A	15g.cm/A
Rotor inertia	<0.15g.cm²	<0.15g.cm²	<0.15g.cm²
Weight	5.3g	5.3g	5.3g

 

12V DC Large Speed Motor NFP-D8620-3665 Outline Drawing

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Coreless DC Series Motor Applications

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• Electric Vehicles Toys, Pumps, Computer Printers, Tattoo Machines
• Fax Machines, Video Cassette Recorders, Blowers, Golf Caddies
• Drills, Automotive Systems, Electric Screwdrivers, Massage Chairs

If you want to get the samples of this coreless dc motor for your prototype, you can order online 👉 Click Here