Mike Wrote:
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> Casey to my knowledge all of the 4000, 3000, and
> 800 class locomotives on the UP were equipped with
> roller bearings on the axles, but not on the rods.
> The 844 has plain bearings on the rods as does the
> 3985.
So, would roller bearings be able to handle the back and fourth motion of the side rods? Is there a reason brasses were used as apposed to rollers? It just seems like the better and more reliable choice to use roller bearings. I am no rocket surgeon, and I also have no idea what I am talking about!
Casey