Cobra C3520/12 KV820 3-5S Brushless Outrunner Motor For RC Models
Description:
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 3520 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.
Specification:
Brand Name: Cobra
Item Name: C3520/12 brushless motor
KV: 820
Propeller Base Rod Diameter: M6,M8 (optional)
Stator Diameter: 35.0 mm (1.378 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 Wind: 12 Turn Delta
No Load Current (Io): 1.45 Amps @ 14 Volts
Motor Resistance (Rm) per Phase: 0.039 Ohms
Motor Resistance (Rm) Phase to Phase: 0.026 Ohms
Maximum Continuous Current: 56 Amps
Max Continuous Power (3-cell Li-Po): 620 Watts
Max Continuous Power (4-cell Li-Po): 830 Watts
Max Continuous Power (5-cell Li-Po): 1040 Watts
Motor Weight: 216 grams (7.62 oz.)
Outside Diameter: 43.0 mm (1.693 in.)
Shaft Diameter: 5.00 mm (0.197 in.)
Motor Body Length: 46.0 mm (1.811 in.)
Overall Shaft Length: 68.0 mm (2.677 in.)
Motor Timing: 5-10 degrees
PWM Frequency: 8 KHz
for the Cobra C-3520/12 Propeller Data Chart
Package Included:
1x Cobra C3520/12 KV820 motor
1x Accessories
for the Cobra C-3520/12 Propeller Data Chart
Package Included:
1x Cobra C3520/12 KV820 motor
1x Accessories
