Re: What does "X" mean?


Steve Wells
 

The first generation 16" was introduced in July of 1912. The spindle was 2-3/8-8, nose length was 2".
That spindle ended in June of 1922, they reduced the nose length to 1-3/4.
In December of 1924 they change the spindle threads to 2-3/8-6, and changed the shoulder size to 2-15/16.
In December of 1926 they changed the Taper Diameter to 1.567
In December of 1939 the changed the Taper Diameter to 1.6295 and the shoulder to 2-7/8
These are the only 5 changes I know of, for the 16" threaded spindle, all were .602 taper

Steve Wells

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