Governor drive pulley

[mbrady.glide]

Looking for some assistance identifying the style of pulley used on my governor input shaft. Its a stamped pulley with a recess that engaged with a nut on the shaft, and another nut on the opposite side to clamp it tight. I need to find a larger size pulley to get the governor in its operating range. I may end up taking the assembly off the shaft and going with a keyed pulley, but it looks like the shaft is an odd size, between 1/2 and 5/8. The hub is keyed and looks like retained on the shaft with a dowel pin.

 

[wore out]

GOOGLE "Gates Tru-Run".

That's what that series of sheaves and interchangeable hubs was called.

From what I saw, they don't seem to be available any more from Gates, only on ebay and such places, as "used" or "N.O.S.".

I'm not sure about that, though.

 

[mbrady.glide]

Awesome! Thanks a bunch.