Lloyd E. Sponenburgh wrote:
....
So, they were simply enforcing that the face of the friction washer would
be the ultimate yield point if something slipped, rather than having the
washer slip on the shoulder of the shaft.

Although my grinders have a mere shoulder, _I_ would rather have them
slip on the paper washer than to slip on the shaft -- if they ever
slipped; which they have not.

How do you know that they haven't slipped? G

In fact, Joe posted that his flange is scored from it slipping on the
shaft and the pin's stub cutting it.

BTW - the talk has been "flanges" and I say "flange", cause only the
inner flange is/was pinned, right? Varying thickness of wheels would
prohibit pinning the outer flange. Oh, wait ... "flanges" could mean
the 2 inner ones (both sides).

Bob