governor shaft for Columbia BO

michiganmike · Post by **michiganmike** » Wed Aug 10, 2022 3:07 pm

I need a replacement governor shaft for a Columbia BO [1908 cylinder machine]. The one I have has significant wear on some of the teeth on the gear.
This item is the one that meshes with the part of the assembly that has the weights mounted on it.
Present one has siginicant wear on part of the gear diameter. Replacement must be nearly wear-free.

It appears that at least these models have the same governor shaft AO and BQ. It is likely that other models produced around the same time and of similar design would have the needed shaft as well. The AO was first released 1902, and evolved into later case designs. The BQ was from 1907.