In article 1126233070.845089.200900
@o13g2000cwo.googlegroups.com,
says...


Ned, I may be able to use a "non rotating" 3/16" OD hardened steel
dowel pin for a follower, If this is what you meant by "sliding
follower".

Sort of, but I was also suggesting that you try to increase
the contact area between the cam and follower. I don't know
what the shape of your cam is, but the ideal situation
would be if the cam were an eccentric circle, the follower
could have a concave face that approximates the curvature
of the cam. This would reduce the contact pressure
drastically. If the cam is more complex, which I expect is
the case, the shape of the follower would have to be a
compromise.

Would I probably need to put a hard chrome plating on the
pin ?


A carbide pin would probably be cheaper, unless you're
talking about large quantities, and assuming impact isn't a
problem.

Ned Simmons