Wednesday, June 3, 2020

Re: [electricboats] 2:1 reduction gear

I don't seem to be able to find anyone who sells those in Australia and my motor is german and has metric mounts and what  I can find seems to indicate these gearboxes use imperial dimensions.
(My country went 100% metric system when I was a child, I don't even have any ability to estimate sizes/lengths in imperial units, only metric)

Other than that, the gearbox looks ideal for me, it will fit in the old engine bay and has no nasty spinning bits.
The thunderstruck belt drive is wonderfully simple but would require rebuilding my engine box to be higher and would need a guard around the belt.

On Thu, 4 Jun 2020 at 07:37, Eric via groups.io <ewdysar=yahoo.com@groups.io> wrote:
+1 for the Browning gear box.  I'm using a CbN-3201-SB3-2.5 with the NEMA spec C-face adapter, my Motenergy PMAC motor bolted right up to it.  The Browning gear boxes are industrial grade with service levels of 10,000 hours before changing the factory oil.  They are figuratively, and maybe literally, bulletproof.  They are relatively inexpensive, small, light, quiet, and efficient.  These gear boxes are available for various power levels and in a variety of different gear ratios, My box ratio is 2.55-1.  You can see a pic in the "Eric's Serenity" photo album in this group.  https://groups.io/g/electricboats/album?id=190248 

Fair winds,
Eric

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