On Fri, 27 Dec 2013 00:32:06 GMT, Doug White
wrote:

snip
The pins are about 5/16" in diameter, and each end has a shallow drilled
out section. It looks like they pressed ball bearings into the ends to
spread them. The linkage the pin goes through is countersunk on both
sides, so the swaged bits hold everything together.
snip

Any thought to simply getting a 6m/m- pin and an arbor press
and pushing the pins out with a block to support the
linkage, possibly soaking the assembly in penetrating oil
first and some heat?

I do like the suggestion of two stub drills in a lathe to
weaken the swedge, perhaps drilling and then pressing.

Sounds like a good compact method to retain pins. Is this
strictly a Russian technique, European, or?

Anyone know if the holes in the linkages are straight or
have a slight taper for this technique. Center drilling
both ends of a pin and a suitable punch for assembly sounds
attractive for the right application.


--
Unka' George

"Gold is the money of kings,
silver is the money of gentlemen,
barter is the money of peasants,
but debt is the money of slaves"

-Norm Franz, "Money and Wealth in the New Millenium"