I am wondering what the driver diameters and distances between the centers of the first and fourth axles are for the HO 2-8-0 and 0-8-0 locomotives. The distances between the centers of all drivers would be nice to know but is not as critical.This is information which I would like to see in advertisements for all locomotives as I sometimes use mechanisms from commercial products for scratch building. Thank you.
Roy Krouse
Hi Roy,
I just measured both the older Bachmann Plus version and the newer Bachmann Spectrum versions of the 2-8-0 and found them virtually identical. The wheels are .700" at the smaller part of the tread and spaced .800" apart. These measurements were made on used (well used) locomotives but I tried to average out the variations due to wear and feel the measurements are good to +/- .005". As the locomotives were made in China, I expected the measurements to be close to round numbers in millimeters, but they were not.