Babbitt

Running while low on oil had galled the babbitt.

Source: wiktionary

Figure 2 represents a top plan of the "Babbitting" jig, placed in or upon a cast-iron frame, preparatory to the pouring or casting of the "Babbitt" or other soft metal on to or around its journals, to form journal bearings in said cast-iron frame.

Source: wiktionary

Remove all sharp edges from the babbitt with a chisel or file and try the shaft after removing the paper wrapping for a fit. If a light coat of oil mixed with lampblack be smeared on the shaft and the shaft revolved, the lampblack will catch on the high points of the babbitt, then by removing the shaft and scraping off these high spots a good bearing can be produced.

Source: wiktionary

Coins made from nickel babbitt are fairly hard and give a clear bright ring. This makes it easier to pass them due to the widespread belief that a sure test of a counterfeit coin is to drop it on a hard surface to see if it will "ring". […] The simplest test is to cut the edge of a suspected coin with a pocket knife. If it is made of babbitt the metal will pare off quite easily.

Source: wiktionary