NPC-02446 Motor
A great mid-size motor that produces fantastic power (.70 hp at 4000rpm). 5/16" shaft
$89.72
NPC-02446 NPC-02446 Motor <p align="left"><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">A very good solution for a lightweight robot's drive system (geared down) or for a medium spinner weapon.</font></p> <p align="left"><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">24V<br> Reversible, Permanent Magnet, center timed<br> 4.8 pounds<br> 4000rpm<br> approx .70 horsepower<br> draws 25 amps normal use, 81.4amps at stall<br> 2.964" diameter<br> 5.5" length<br> 5/16" x 1 1/2" shaft with flat</font></p><BR> <img src="http://www.robotmarketplace.com/images/store_02446results.gif">
These motors were amazing i geared them down 5 to 1 and they ran my 73 lb robot like it was nothing. I ended up doing burnouts all most everywhere i go next time i'll have to invest in sticker tires instead of the scooter ones I used. The motors did seem to get a hotter then i expected although I dont know if it was worse then any other motor drawing this much power If i ever need more I would defently buy these again!
$89.72 
SolidWorks File 
Great product
NPC-K2446 Motor/Gearbox/Wheel Kit with 4 inch wheel