INDC-4120-20 COBRA C-4120/20 Brushless Motor, Kv=480

INDC-4120-20 COBRA C-4120/20 Brushless Motor, Kv=480

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 4120 series motors have a 6.0mm shaft for extra strength, as well as oversize ball bearings to support the shaft and provide a long life. There are two internal bearing measure 12mm x 6mm x 4mm and the outer bearing measures a massive 17mm x 6mm x 6mm! 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 4.0mm bullet connectors already installed.

Included with every Cobra 4120 Series Motor is a complete accessory package which contains the following items:

• Heavy Duty 3mm Thick Cross Style Motor Mount
• Four M4x8mm Motor Mount Screws
• Bolt-On style threaded prop adapter with 8mm shaft and M8x1.25mm thread
• 3 Prop Adapter retaining screws
• Retaining Collar with Set Screw
• Three female 4.0mm bullet connectors
• Three pieces of heat-shrink tubing

Cobra 4120/22 Motor Specifications

• Stator Diameter: 41.0 mm (1.614 in)
• Stator Thickness: 20.0 mm (0.787 in)
• Number of Stator Slots: 12
• Number of Magnet Poles: 14
• Motor Wind: 20 Turn Delta
• Motor Kv Value: 480 RPM per Volt
• No Load Current (Io): 1.87 Amps @ 20 Volts
• Motor Resistance (Rm): per Phase 0.054 Ohms
• Motor Resistance (Rm): Phase to Phase 0.036 Ohms
• Maximum Continuous Current: 48 Amps
• Max Continuous Power (4-cell Li-Po): 710 Watts
• Max Continuous Power (5-cell Li-Po): 890 Watts
• Max Continuous Power (6-cell Li-Po): 1065 Watts
• Max Continuous Power (8-cell Li-Po): 1420 Watts
• Motor Weight: 294 grams (10.37 oz.)
• Outside Diameter: 49.8 mm (1.961 in.)
• Shaft Diameter: 6.00 mm (0.236 in.)
• Motor Body Length: 51.8 mm (2.039 in.)
• Overall Shaft Length: 74.5 mm (2.933 in.)
• Motor Timing: 5-10 degrees
• PWM Frequency: 8 KHz