T-Pain Is On A Boat: Re: [Electric Boats] Re: reduction drives

Saturday, September 17, 2011

Re: [Electric Boats] Re: reduction drives

One thing your gear box does not do that a lot of the bolt to a large hunk of aluminum/steal setups do. Is give you anything to dump heat to. Your motor and gear box both are heat generators. My motors are bolted to a very substantial chunk of aluminum nicely painted black, which should make for quit the heat sink. If I ever push the motors to there limits that might come in handy. Thankfully we have a fair number of great vendors to choose from. And we can each pick the vendors we think makes the best product for our individual needs.

Mastervolts pods would be the ultimate in heat distribution submerging the entire motor in water, maybe someday we will get one of there customers on this forum. I would love to know what all they get with the motor, and the cost and finish of the setup.

On Sep 17, 2011, at 2:47 PM, Eric wrote:

Another option is a Browning 3201 gearbox. The ME0907 should bolt directly to it. They have a built in thrust bearing, 97% overall efficiency including bearings and seals, 10,000 hours MTBF and come in 10 different gear ratios. To me, a single component that handles everything (reduction, thrust, motor mount, etc.) helps keep it simple.

Fair winds,
Eric
Marina del Rey, CA

--- In electricboats@yahoogroups.com, danbollinger <no_reply@...> wrote:
>
> Take a look at Goodyear Eagle NRG herringbone belts and matching pulleys. http://www.goodyearep.com/ProductsDetail.aspx?id=3400
>
> Most radial bearings will accept a certain thrust, moreso if they are angular contact type, so you might not need a thrust bearing in your drive system.
>
> For simplicity, look at flange and pillow block mounted bearings.
>
> --- In electricboats@yahoogroups.com, "svcabernet" <bsmisner@> wrote:
> >
> > Hello all,
> >
> > I've been lurking here for a while, which has paid great benefits as I've been putting together a parts list for an electric drive for my Cascade 29.
> >
> > Given the limited budget I've decided to "build" the system myself rather than go with one of the tried and true manufacturer's assemblies.
> >
> > The one component(s) I've been having trouble with is the reduction drive. I've decided to use timing pulley's/belts or sprockets and chain along with captured roller/thrust bearings but am having a tough time sourcing them. I wouldn't be opposed to a gear reduction either provided a "bullet proof" reputation. The motor of choice is the ME0907 for it's lack of brushes, performance, and affordability. By my calc's a 2:1 to 2.5:1 reduction will be needed to maximize performance. Any ideas would be appreciated.
> >
> > Thanks,
> >
>