Cobra Brushless Multirotor Motors offer performance and value for Your RC Models. 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 sides, with separate compartments to protect the motor and accessory pack.
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-2204/28 Propeller Data Chart
|Stator Diameter||22.0 mm (0.866 in)|
|Stator Thickness||4.0 mm (0.157 in)|
|Number of Stator Slots||12|
|Number of Magnet Poles||14|
|Motor Wind||28 Turn Delta|
|Motor Kv Value||2300 RPM per Volt|
|No Load Current (Io)||0.66 Amps @ 8 Volts|
|Motor Resistance (Rm) per Phase||0.126 Ohms|
|Motor Resistance (Rm) Phase to Phase||0.084 Ohms|
|Maximum Continuous Current||17 Amps|
|Max Continuous Power (2-cell Li-Po)||125 Watts|
|Max Continuous Power (3-cell Li-Po)||190 Watts|
|Motor Weight||24.6 grams (0.87 oz.)|
|Outside Diameter||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 Timing||5-10 degrees|
|PWM Frequency||8 KHz|
Motor Performance Graphs
The following downloadable PDF files show the performance data curves of the Cobra CM-2204/28 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.
Great motor! review by Kaity on 5/13/2017
I had a motor burn on my RTF rig and decided to fix it instead of wait for warranty work to be approved. Chose this motor based on prior reviews...glad I did!
The motor is premium quality with solid wiring and components.
Fantastic! review by LORIS on 11/26/2016
Very Very Great Motor! I use this from 1 year ago without problem! Powerful and lightweight!
Gods motors review by Airpusher on 5/4/2016
These are some of the best Motors that man has ever built in my opinion
Solid and Powerful review by Jim Cheong on 4/17/2016
I have converted my ImmerssionRC Vortex 285 from T-Motor 1806 to Cobra 2204 and from a 3s to 4s with 6040 props. It is superfast and much more durable as compared to Multi elite 2204 where 2 prop stem broke from minor crashes. Can get Mount Adapter to convert from 1806 to 2204 online.
Smooth and powerful review by Bryce on 2/2/2016
MUCH better than the dys 1806's I upgraded from. Running on 5x4x3 HQ props, RG20's, 4s these really pack a punch.
I have bent a shaft though. The inner magnets (stator) are so close to the bell magnets that even the slightest bend, the motor is unusable. Great for efficiency, not durability.
Excellent motors review by Radu on 9/26/2015
Excellent motors, I bought 2 sets and would not hesitate to buy again whenever they are in stock. I use them at 4s. They are much audibly noisier than equivalent Tiger or EMAX motors, but that does not seem to affect the flight characteristics. With a 30fps camera such as a Mobius I noticed they are a bit more vibey than Tiger motors (was seeing a bit more jello with exactly the same props+ESCs). At 60fps this is NOT an issue, there is zero jello.
Cobra 2204\2300 review by pat on 9/7/2015
Good fast motor on 4s but week motor shaft's they will bend on hard hit's
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