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Old 12-07-2012, 01:30 PM
MouseFink MouseFink is offline
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I rub off the cosmetic tin flash overlay to expose the lead/tin layer. The flash overlay is an electroplated layer of tin on new bearings that only serves as a dry lubricant during assembly. Some bearing manufacturers calls it a "sliding layer" on their tri-metal bearings. Instead of using Scotch Bright, you can also dip the bearings in lacquer thinner and wipe them with a micro-fiber towel.

Last edited by MouseFink; 12-07-2012 at 01:56 PM.
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