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[DPRG] Help finding motors...

Subject: [DPRG] Help finding motors...
From: Ed Koffeman edk at kinetric.com
Date: Mon Jun 6 08:57:35 CDT 2005


> -----Original Message-----
> From: dprglist-bounces at dprg.org [mailto:dprglist-bounces at dprg.org] On
> Behalf Of Joe
> Sent: Sunday, June 05, 2005 10:07 PM
> To: DPRG
> Subject: [DPRG] Help finding motors...
> I've been searching high and low but I just can't find what I'm looking
> for.
> I'm building an electric car about the size of a small riding lawn
> tractor, but I can't seem to find DC motors to power it. I'm not trying
> to be cheap, but I just can't seem to justify $400-500 for a new E-Tek
> motor.
> My requirements are:
> 12-60 volts
> Output shaft that matches standard pulley bores, slotted or flatted
> (1/4, 3/8, 1/2, 5/8, 3/4, and the metric equivalent)
> RPMs that fall within the range of 300 - 3000, I'll make other
> adjustments with gearing.
> Decent amount of torque, couple of ft-lbs or higher, again I can make
> trade offs between RPMs and gearing
> Cost, preferably less than $100.
> I know this motors are out there and available, I just don't know how to
> find them. I look around at products other people have and know that
> they are being used in commercial products that are only a few hundred
> dollars. When look for parts for these products, the motors cost more
> the buying the product new. Unfortunately the product is outside my
> price range. I've looked at wheelchairs, RVs, electric scooters and
> bikes, golf carts, fork lifts, hand trucks, power wheels, go karts. The
> only promising source I've stumbled on is exercise equipment but the
> voltage is high and the shaft diameters seem to all be non-standard.
> Please help.
> Any direction to sources, contacts, products etc are greatly appreciated.
> If all else fails this summer, I will just scavenge an old lawnmower, a
> clutch and make it a gas toy. :-(
> Thank you.
> Joe W.
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