Did you ever wish your bird just had a little extra something to give, but didn't want to break your batteries (and the bank)? If so, Armattan's Oomph motors are the choice for you. Designed and produced with the finest quality materials, these brushless beasts will provide an unmatched thrust/amp ratio among 2206 sized motors. If you don't believe it, just check out Ryan Harrell's review over at Miniquad Test Bench.
This motor packs much of your standard fare; an M3/22xx mounting pattern, a screw that secures a hollow shaft, and genuine NMB bearings, for some. What may stand out the most, however, is the unique prop-fastening adapter on top. Why this design? After rigorous testing (read: lots of crashes) it was observed that standard exteriorthreaded shafts can be heavy, can bind on props, and require large hardware to remove (who wants to carry around a socket wrench?). This is why the OOmph motors were conceived with a better solution.
A NEW PROP NUT APPROACH
With Armattan's innovative design changing props is easy. All that holds the propeller down is a standard M3 bolt and washer combination on the top of the motor. Once the bolt is unscrewed, the propeller and washer will slide right off of the smooth shaft. Gone are the days of fighting to pull off a blade-less hub and coming away bruised and bloodied. Besides eliminating binding, the Oomph motors have a shorter (lighter) shaft and require only a hex-key (Allen Wrench) for a prop-swap. Another added feature of this solution is that you can tighten the prop-bolt much tighter without fear of stripping anything. This means you don't need to worry about fitting locknuts in above the prop or getting shafts threaded in the proper direction.
Miniquad Test Bench
Stator Dimensions: 22x6mm
Shaft: 5mm wide x 5mm tall prop shaft
Weight: 31g full wires, 29g short wires
Max Current: 36.8A (6" prop)
Motor Mount Holes: M3 16mm x 19mm
Post your build using this product to RotorBuilds.com and it will show up here! Awesome :-)
Complete builds using this part: