Hi,

I'm looking to build a robot that will weigh about 120lbs and travel about 10mph.

Its going to sit on four 8" diameter wheels. I did some calculations, and I'm going to need at least a 420 RPM motor with about 4 lb*ft of torque. I've been looking all over the internet for 2 or 4 12v or 24v DC motor that will power this thing. I don't want the operating and stall current too high either. Can someone help me please. Any websites or motor lists will be helpful. Thanks.

ps: I'm not sure if my calculations are 100% correct. I used p = f*v (assuming 12lb force will be enough to push the 120lb robot). Then t = p/w (t=torque, p = power, w = angular velocity).