Hi Kenneth,
Here's an excerpt from the site I put together:
"To size my drivetrain, I registered at http://www.emerson-
<http://www.emerson-
drive/pulleys) - they have a little wizard there which takes your shaft
dia, motor HP, etc and builds a laundry list
<http://sites.
. I ordered the parts from Drillspot.com (retail version of Grainger -
Here's my parts-list from Drillspot
<http://sites.
a little work to match the part #'s from Browning to Drillspots search
engine. These parts are beefy, but soft steel - treat gently - I had
some trouble with binding during final assembly. Drillspot delivered in
3-4 days, and seems to have good service.
I originally ordered the wrong size pulley ratios because I was looking
at the no-load speed on my motor (a Mars) instead of the loaded speed.
There is a 1000 RPM difference! So make sure you are looking at the
loaded vs no-load speed for these calculations. " from
http://sites.
-Keith
--- In electricboats@
wrote:
>
> Hi, i am designing a drive system for my Arthur Robb yawl. Based on a
choice of a mars brushless 48v motor and my existing prop, i should need
a 1.5-1.75:1 belt or chain drivetrain.
>
> my question is, where do i find one? I have tried Sea-EV, but no
answer. Does everyone just build their own with industrial bearings and
shafts or is there some place where various ratio drives can be
obtained?
>
> thank you!
> kenneth
>
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