not worried about the gears, I can figure those out. can you post up some picks of what it looks like?
It looked pretty much what it looks like on the ES post above. I have some pics of it around somewhere, but that was over a year ago.
I came across these the other day. Theyāre 66mm x 102mm and designed for tricycles (human/electric powered), so Iād imagine they are a bit more suitable for esk8ā¦ if you could get them to fit. Theyād handle the torque, but would need to spin a lot faster than what they were designed for (skateboard wheel diam vs bicycle wheel diam). From what Iāve found on random forums, prices seem to be under 100USD.
Sorry for clogging up your thread @GrecoMan. Iām keen to see how you go with this; with or without a differential 
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were the bearings placed at intervals? how where they held to the axle? how many?
no worries! I love the suggestions and advice!
How is it going btw ? I didnāt progress at all on the 3-pinions drive idea on my side 
Got the right tools but not enough time.
Arenāt there both straight+angled combined gears available around there ? Just throwing more ideas lol
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hehe havent progressed at all on this idea. end of the trimester was just before thanksgiving so the past week or so have been SUPER busy getting back into school and all that
I had 8x16x6mm (I think) outside of the diff & inside the wheels on both sides, used snap rings to keep them in place with an milled aluminum cylinder holding everything. Used an old caliber 2 hanger, cut down to about in inch from the beginning of the pivot pin, welded on both sides to the aluminum cylinder. I wasnāt built well, but it was good enough.
I think the problem I had was that the torsion stress of the axles would feedback into the diff causing it to loose alignment. That caused it to essentially disintegrate from the inside out, which had the resulting action of throwing on my big ugly face 
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LOL. I never even thought about snap ringsā¦ GENIUS! any chance you remember where you pickked up the bearings?
I like it when people call me geniusā¦I mean, its all bullshit, but I still like it 
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Im sure they came from Alibaba or eBay. This is how to do it, at least think this is the safest and most long lived methodā¦who knows.
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Yea I think he used a one way bearing though, which really fucks with the brakes
that is true, but with another single motor up front for brakes the torque would be insane. anyway, it will take some serious material that can stand high torsion stress and manufactured to high tolerances. it wouldnāt hurt if the diff was in a sealed housing full of lithium grease.
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Yay progress
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looking at these bad boys right now, just got this weeks allowance so maybe ill place an order for a 12t and a 15t one tomorrow maybe I should 3d print firstā¦
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Dude this is so coolā¦
thanks bro!
Looks really nice greco! What cad program do you use? About the trucks and wheels; did you design them from the bottom?