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Old 09-03-2015, 03:28 AM   #1
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Prop hub too thick?

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Hi everyone!
I'm assembling my first flying wing (a teksumo) and the props that I've bought, TGS 8x4, TGS 7x5 have a hub that's really thick, and only have 2 threads for the prop adaptor to screw onto.

Is there a proper way to mount them? In addition, even with the shim, there is a fair bit of play, as the shim lies along the threads, which appear to be of a smaller radius than the non-threaded areas of the prop adaptor. The motor I have has a 3mm shaft.

I've got one APC 8x3.8SF prop, and that fits well and perfect on this collet style prop adaptor.


PS: I will be trimming down the shaft over the weekend.
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Old 09-03-2015, 05:20 AM   #2
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Re: Prop hub too thick?

I don't see it in the picture but your spacer should be in the back of the prop so it would be on the smooth part of the shaft.

Sadly I find most of the prop adapters are made so short with no accounting for the size of prop that electric motors are actually able to spin.

On bigger motors I found the OS electric adapters have nice long threads but for others it is quite a search to get lucky enough to find one that has longer threads.
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Old 09-04-2015, 12:02 AM   #3
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Re: Prop hub too thick?

Hi David! Thanks for the help!

Actually, I'm using this motor as a pusher, so the photo actually has the prop the wrong way round When it's flipped around, the spacer does wiggle around on the threaded part of the prop.

Thanks for the feedback about the short thread lengths, I think what I'll sell these props, and just buy a bunch of APC props as they seem to fit really well with what I've got.

Thanks again!
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