Hello ARGscrap. I snapped some photos for you.

Dimensions on roller wheel:

about 2.25 inches by about 4.5 inches in diameter:





The motor runs @ 1725 rpm:



The shaft that runs the V-shaped roller is 2 inches:



There is NO stamp (15:1, 20:1) on the outside of the gearbox. Sorry, but I am not about to tear it apart to look inside. Wire runs at 75ft/Minute.



With all that info, a good mathematician (which I am not) could figure out the gear reduction.

Hope that helps.