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550 Class Electric Helicopters 550 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.

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Old 06-04-2011, 06:58 AM   #1
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Join Date: Feb 2010
Location: Margate, England
Default banana tt

hi guys...after a tail strike and a crash, my tt drive is kinda bent...not too bad but its causing vibes and i still have the loose tail syndrome.
just using 1 tt bearing atm....
so i bought a new tt and boom ....H55034T and it arrived in the post in a tube so no damage from the postman....
this is a pic of the tt drive sitting on a granite flat plate...accurate to within .002mm
imo, its a shame the tt is not accurate to within 1mm let alone .002

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align wtf?? is there no Q/C at your factory, do you even know what Q/C is...
the tt i want to replace has less runout than this.....
anyone else had this....rant over...
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Old 06-04-2011, 08:10 AM   #2
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Location: Benicia, Ca

I've recieved some pretty bad one as well, you should see some of the aluminum ones I get for my 450, man they look like a pretzel.
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Old 06-04-2011, 09:06 AM   #3
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Location: Houston, Texas

Just wondering if this is not another reason to use belt drive? As a person just learning to fly it especially makes sense. I looked at TT from my original setup and it is not quite true either. I also suspect is why two bearings work better in some cases.
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