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Looking for an inexpensive High Torque DC Motor

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robot321:
Hello All,  ;D

Looking for an an inexpensive, High Torque, Low mA, DC Motor. RPMs are not too important (Not less than 3)
This is for a mobile robotic arm project. ( I require no bells in whistles,  Just a motor and maybe a gear box..  I will handle speed,home sensors,position,feedback in-house)

Looking for something powerful enough to lift a gallon of milk. 8.5-8.8 lbs (3855g-3991g).

Also where can I find standalone really high gear ratio boxes?  4000+

Thanks so much in advance....

Admin:
try these:

http://www.npcrobotics.com/products/index.asp

http://www.robotmarketplace.com/marketplace_motors.html

robot321:
Thank you so much for the quick reply.  These sites do offer some nice choices. 
But I'm on a budget,  while I do not want to sacrifice performance.  I would like to find a happy medium.

The prices seem... bloated. No?  I mean I could buy a drill BNIB (Brand New In Box) take it apart as save way more right?  And if I bough a used tool.  If would go down way more.

These online stores maybe do not see the volume others may do hence higher prices?  Or consider themselves a niche repository?

But since I'm new to the game of pricing motors in particular I may be way off base.

Is motor/gearbox with nice torque/mA numbers in the <$35 a pipe dream?  Otherwise the cost of my project will spin quickly out of control.

BTW:  I found this site about 2 weeks ago.  GREAT SITE!! Lots of info.


Nyx:
I agree that the prices seem bloated (160$ for a motor-gearbox-wheel kit? A single wheel that is?). I too am on a budget, and I found something very nice the other day.... A windshield wiper motor:

http://cgi.ebay.ca/2000-2001-Saturn-L-Series-Wiper-Motor-NEW-Wholesale_W0QQitemZ160081958589QQihZ006QQcategoryZ2594QQrdZ1QQcmdZViewItem

They sell it for $13. I already have one of those at home. Bought a second one. They can do ~100 RPM at 12V, 4A, or 41 RPM with 0.91A. I will use two of these to power the wheels of my robot. I can tell you that they are fairly powerful. Grabbing the lever and trying to stop it is quite difficult.

robot321:
That's outstanding.  That's much more in the direction I'm looking for. 

Maybe not quite powerful enough. But I could use it for something else. Nice find. I'll need to check ebay more.  Its just shipping is usually out of proportion to what it should cost.

Nyx: How much does the battery weigh you are using?  Gel or Lead-acid based?

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