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> Cobra CM 2204 / 20 Multirotor Motor 2850 KV
Cobra CM 2204 / 20 Multirotor Motor 2850 KV
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Cobra Has done it again Bringing you Beast motors into tiny sizes. These 2204 sized motors come angry and ready to rip the sky to shreds. Pair it with your favorite props and turn your multirotor into a rocket ship ready to take on race day. Made from the highest quality components these motors will out last the competition leaving others in your prop wash.
The Cobra CM-2204 series motors have a 3.0mm motor shaft for extra strength, as well as oversize ball bearings to support the shaft and provide a long life. The stators are made with 0.20mm laminations for maximum efficiency and minimum Eddy Current losses. Since these motors are typically soldered directly to the speed controller to save weight, the 2204 motors come without bullet connectors and feature extended pre-tinned motor leads that are 4-1/2 inches (110mm) long. These motors also have 3mm threaded holes in a 16x19mm pattern on the back plate for easy installation on your model.
The newest version of the CM-2204 series motors feature an integrated 5mm threaded motor shaft which eliminates the chance of having a prop adapter spin off in flight. The included prop washer and nylon insert prop nut provides a solid attachment for your propellers that will not loosen up and slip during use.
Included with every Cobra CM-2204 Series Motor is a complete accessory package which contains the following items:
? Four M3x5mm Motor Mount Screws
? Four M3 Flat Washers
? Machined Aluminum Prop Washer
? Locking Prop Nut with Nylon Insert
Click here for the
Cobra CM-2204-2850 Propeller Data Chart
Cobra CM-2204/20 Motor Specifications
22.0 mm (0.866 in)
4.0 mm (0.157 in)
Number of Stator Slots
Number of Magnet Poles
20 Turn Delta
Motor Kv Value
2850 RPM per Volt
No Load Current (Io)
0.993 Amps @ 10 Volts
Motor Resistance (Rm) per Phase
Motor Resistance (Rm) Phase to Phase
Maximum Continuous Current
Max Continuous Power (3-cell Li-Po)
Max Continuous Power (4-cell Li-Po)
24.6 grams (0.87 oz.)
27.0 mm (1.063 in.)
Motor Shaft Diameter
3.00 mm (0.118 in.)
Prop Shaft Diameter
5.00 mm (0.197 in.)
Motor Body Length
14.2 mm (0.559 in.)
Overall Shaft Length
32.5 mm (1.146 in.)
Motor Performance Graphs
The following downloadable PDF files show the performance data curves of the Cobra CM-2204-2850 motor, over its entire throttle range, with a variety of propellers. These graphs can be downloaded and printed to use as a reference for calculating power requirements at specific thrust levels, and enable the user to calculate flight times, current draw and other motor parameters.
3-Cell Li-Po Power
Cobra CM-2204-2850 Performance Data with HQ 5x4 prop on 3S Li-Po
Cobra CM-2204-2850 Performance Data with HQ 5x4.5 prop on 3S Li-Po
Cobra CM-2204-2850 Performance Data with HQ 6x3 prop on 3S Li-Po
4-Cell Li-Po Power
Cobra CM-2204-2850 Performance Data with HQ 4x4 prop on 4S Li-Po
Cobra CM-2204-2850 Performance Data with HQ 5x3 prop on 4S Li-Po
Performance Graph Instructions
This downloadable PDF file shows the step by step process to use for interpreting the data shown in the Motor Performance Graphs. By following this procedure, you can determine how to select a proper motor for a Multirotor aircraft, as well as calculate required power levels, determine overall prop efficiency and calculate expected flight times based on the battery size that is used. This document can be printed out and saved as a valuable reference tool to keep in your workshop for future use as well.
Motor Performance Graph Instructions
Items Included in Hardware Package
Cobra Motor Packaging
*Please observe the motor specifications properly. This will determine the correct size ESC required for proper operation*
*Motors do not come with replacement parts!
*Motors that have failed\burned running on an incorrect ESC size will void warranty*
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