COB Cobra Motors Cobra C-2820/12 Brushless Motor, Kv=970

$45.99 Excl. tax
  • Availability: In stock
Cobra Brushless Motors offer performance and value for Sport Flyers and Competition pilots alike. They are built from high quality components, and are designed to give years of top-level performance. All Cobra Motors are shipped in a custom designed packa ...More information

Product description

The Cobra 2820 series motors have a 5mm shaft for extra strength, as well as oversize ball bearings to support the shaft and provide a long life. The internal bearing measures 11mm x 5mm x 5mm and the outer bearing measures a massive 16mm x 5mm x 5mm! The stators are made with 0.20mm laminations for maximum efficiency and minimum Eddy Current losses. Also included on the motor are ultra-flexible motor leads with high-temp silicone rubber insulation and 3.5mm bullet connectors already installed.

Included with every Cobra 2820 Series Motor is a complete accessory package which contains the following items:

● Heavy Duty 3mm Thick Cross Style Motor Mount
● Four M3x6mm Motor Mount Screws
● Bolt-On style threaded prop adapter with 4 screws
● Retaining Collar with Set Screw
● Three female 3.5mm bullet connectors
● Three pieces of heat-shrink tubing


Cobra 2820/12 Motor Specifications
 Stator Diameter  28.0 mm (1.102 in)
 Stator Thickness  20.0 mm (0.787 in)
 Number of Stator Slots  12
 Number of Magnet Poles  14
 Motor Wind  12 Turn Delta
 Motor Kv Value  970 RPM per Volt
 No Load Current (Io)  1.30 Amps @ 10 Volts
 Motor Resistance (Rm) per Phase  0.059 Ohms
 Motor Resistance (Rm) Phase to Phase  0.039 Ohms
 Maximum Continuous Current  40 Amps
 Max Continuous Power (3-cell Li-Po)  440 Watts
 Max Continuous Power (4-cell Li-Po)  590 Watts
 Motor Weight  138 grams (4.87 oz.)
 Outside Diameter  35.0 mm (1.378 in.)
 Shaft Diameter  5.00 mm (0.197 in.)
 Motor Body Length  40.0 mm (1.575 in.)
 Overall Shaft Length  60.0 mm (2.362 in.)
 Motor Timing  5-10 degrees
 PWM Frequency  8 KHz


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