On Mon, 09 Sep 2013 17:47:47 -0400, Tom Gardner Mars@Tacks wrote:

I have an application where a 1" dia. shaft is hard to R-62 and a part
is attached with two opposing 3/8" cup-point set screws. The part has a
cam follower on it and rotating the part on the shaft then locking it
with the set screws is a positioning adjustment. There is about 75
pounds of force on the part. I hate this set-up! I just don't trust it
not to slip but I can't think of a better way of locking the part on the
shaft yet be able to adjust it easily.

Google "adjustable cam gears" and see if they give you any ideas.

Maybe.

--
Ed Huntress