On Mon, 4 Feb 2008 21:52:21 -0500, "Ed Huntress"
wrote:


Harden it. The best and longest-wearing bushing is hardened steel on
hardened steel. It also requires the best finish and the best fit, because
it won't conform to anything.

Some of the worst are soft steel on soft steel. Hardened steel on soft steel
is only slightly better.

Before ball bearings were common, 10,000 rpm internal grinders used
hardened-steel on hardened-steel bushings. They also used no oil, but that's
another story.


Ok, It'll get hardened and tempered to about 64HRc and then polished then. I
wasn't sure, because I was under the impression that one should run soft
against hard, but that didn't seem to make sense with steel on steel.

Thanks

Mark Rand
RTFM