I am developing an application with an auger (a type of drill bit ) in which this auger will be pushing balls up a tube. The weight of the balls equals about .5 lbs but I would like to have 2.5lbs of pressure applied to them. The auger will be powered by a DC motor and I need to figure out the torque rating needed for this motor to push this kind of weight in inch pounds. The motor needs to spin at 1500-1800 RPM if that is helpful. Does anyone have a formula or formulas for calculating something like this? Attached is a basic drawing of the auger specs and what it looks like. If the image does not show, it is located at www.develonet.com/auger1.GIF Please detail your formula if you have one. Thanks a ton!