Quote:
Originally Posted by Bene505
Jim,
What does "galled" mean?
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It's damage to steel surfaces that can occur due to improper lubrication and friction. What happens is that material is stripped from one surface and deposited on the other. Stainless-on-stainless is particularly susceptible to galling, which is why it's important to keep SS parts well-lubricated.
Galling can't really be fully repaired, except by replacing the damaged parts, because it involves the removal of material from one or both.
I learned all about galling when I administered the coup de grace (it turned out) to our backstay adjuster at the end of the season-before-last
. Luckily we had a friend-of-a-friend who's an accomplished machinist with access to CNC machines
. (Upon the machinist disassembling the thing, it turned out I wasn't the first to abuse it, as there'd been precious few threads in the "nut" left to destroy.) The "nut" must've been of softer stainless than the screw, because the screw was fine. He didn't even have to chase it.
Jim