8mm Small DC Motor – 20mm Length Model NFP-D8620-3665

8mm Coreless Motor, Coreless DC Motor

8620-k-dc-motor-carbon-brush

Coreless Micro Motor Model NFP-D8620-3665 Data Sheet


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 CW64.6g.cm CW89.36g.cm CW108.8g.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


NFP-D08520-coreless-micro-dc -motor

Coreless DC Series Motor Applications


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

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