Originally Posted by
oneclick
I knew what you meant.
And to make sure you do as well, I doubt it very much that one could persuade a shim of sufficient thickness to effect the necessary fit between the crank and the hole - by physical manipulation of *any kind*. If the crank is on the axle the shim won't go in, and if the shim is on the axle the crank won't go on.
I'm thinking you're still not getting it.
The shim goes in the hole before the arm is installed, not after. The only force is from the bolt.
Quoting an earlier post of mine again: "Using stainless stock from a feeler gauge, I'm sure that one could get one or two sizes to fit even cold just by introducing a
slight bevel to the square hole..."
With a bevel at the hole's entry, surely the bolt could generate
quite a bit of interference fit of the arm on the spindle, equivalent to what is generated on a tapered spindle.