There are several more variations in Wurlitzer gear standards [220718
MMD]. One has a drive wheel for a belt drive roll frame, another one
has the drive rod coming out one end to drive the roll directly.

The one in my Wurlitzer 'I' is smaller than the one in a Wurlitzer CX.
Some are heavier duty than others for driving pressure pumps as well
as vacuum pumps.

Personally, I need a late heavy one for a Wurlitzer LX missing its
gear standard.

Don Teach
Shreveport, Louisiana