Right. Removable hubs are typical for industrial pulleys and sheaves.
I highly recommend the Goodyear EAGLE herringbone cogged belt system. TThey are efficient, quiet, and self-tracking. No need for power-robbing flanges. http://goodyearep.
--- In electricboats@
>
>
> Victor,
>
> The power transmission parts are very straight forward. Several
> companies (Gates, Dodge) make a wide range of parts. The pulley is
> fitted to a tapered bushing with a keyway that fits your shaft.
> Google "QD Bushing" to see what I mean.
>
> Use the "Designflex" program on Gates' website to spec your parts -
> you enter your shaft and motor data, the program spits out a list of
> assemblies (two pulleys, two bushings, one belt) that meet your
> criteria and sorts it by price.
>
> You can buy the parts from any bearing and power transmission
> retailer or on the web. The sellers can interchange brands so you
> can take the list of Gates part numbers to a Dodge dealer, etc.
>
> Denny
>
> www.wolfEboats.
> On Wed 21/04/10 2:56 AM , John Raynes johncraynes@
> Victor,
> Baldor makes a 2:1 reducer that will fit a 7/8 shaft. I have one
> but it has been altered. If you want a belt drive you will need
> mounting brackets, cleated belt and pulleys. A cleated belt will run
> quieter but the gear reducer eliminates the belt. Both methods are
> high efficiency contrary to what some people will tell you.
> John
> On Wed, Apr 21, 2010 at 1:34 AM, vjmtymo wrote:
> Years ago I jumped into the group trying to figure out the
> particulars of e-drive in my 36ft sailboat. At the time, I thought it
> wouldn't work but am now having quasi-sublime second thoughts
> particularly as I prepare to lug the diesel out of the garage and,
> somehow, up into the hull. If you're rolling around on the ground
> saying "I told you he'd be back" well, get it all out of your system
> and then read on.
> I've heard 48v is too much, just right, and of course, not enough. A
> local Canadian EV shop in the neighbourhood recommends 72v, but I have
> my doubts. Maybe I should just jump in with both feet and see what
> happens, so, having priced out and sourced all the parts for an Etek
> RT system in 48v, I now need the drive system parts. Kind souls of
> this forum sent good info on how to use a trailer hub for a thrust
> bearing (Dave?) and pillow blocks (others). My boat is steel, my
> medium is steel, and I've got enough scrap left over to make any kind
> of frame for the motor etc. I'm just a bit hung up on the pulley
> thing: the shaft for the Etek is 7/8 with a keyway. How do you
> connect this to an off-the-shelf synchronous pulley? Is there one
> that has range for this shaft? Where do I get it (them) to obtain
> decent reduction around 2:1? Please excuse my lack of power
> transmission knowledge.
> So, if anyone's up for downloading their know-how yet one more time,
> I'd greatly appreciate it. In the meantime, I'll chase a few crows if
> that helps.
> Victor
>
>
>
> Links:
> ------
> [1] http://www.wolfEboa
> [2] mailto:vjmtymo@
> [3] mailto:electricboats@
> Drivetrain details
> [4]
> http://groups.
> [5]
> http://groups.
> [6]
> http://us.ard.
> [7]
> http://us.ard.
> [8]
> http://us.ard.
>
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