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Grant Erwin Grant Erwin is offline
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Default fixing a pinion gear temporarily on a shaft to cross-drill for apin?

I have this old machine I'm working on in my spare time. When I say old,
it's really old, probably pre-1920. It has two shafts which had gears
fixed to them by pinning. The shafts were drilled and the gears were
drilled but the holes didn't line up so they just took thin pin stock
and banged it in so it bent but jammed in there "good enough".

Now I took it all apart and don't want to replicate the bent pin trick.

I'm thinking of temporarily fixing the gear to the shaft somehow, setting
it up in the mill, and drilling straight through with a 1/4" drill and
then just push through a 1/4" roll pin. I can't really figure out how to
fix the gear onto the shaft temporarily, though. Ideas?

PS I'm open to other solutions, but I think a set screw might slip ..

Grant

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