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 package that features protective foam on all six sides of the box, with 3 separate compartments to protect the motor, accessory pack and cross mount.
The Cobra 2814 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 2814 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 2814/12 Motor Specifications
Stator Diameter: 28.0 mm (1.102 in)
Stator Thickness: 14.0 mm (0.551 in)
Number of Stator Slots: 12
Number of Magnet Poles: 14
Motor Wind: 12 Turn Delta
Motor Kv Value: 1390 RPM per Volt
No Load Current (Io): 1.44 Amps @ 10 Volts
Motor Resistance (Rm) per Phase: 0.045 Ohms
Motor Resistance (Rm) Phase to Phase: 0.030 Ohms
Maximum Continuous Current: 40 Amps
Max Continuous Power (3-cell Li-Po): 450 Watts
Max Continuous Power (4-cell Li-Po): 600 Watts
Motor Weight: 107 grams (3.77 oz.)
Outside Diameter: 35.0 mm (1.378 in.)
Shaft Diameter: 5.00 mm (0.197 in.)
Motor Body Length: 34.4 mm (1.354 in.)
Overall Shaft Length: 54.0 mm (2.126 in.)
Motor Timing: 5-10 degrees
PWM Frequency: 8 KHz
