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Discussion Starter · #1 · (Edited)
My new cutlass bearing has arrived, but before I installed it I wanted to ask you all about a curious mark on it. It looks like an indexing mark, or alignment mark, but I don't know what it should be aligned with. Any help will be appreciated.
 

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Probably a mark from when it was cut. such things have no top or bottom. the only think I can think of, it may have a mark for where the set screw dimple would go but that would seem doubtful
 

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Discussion Starter · #3 ·
I emailed the manufacturer and got a response right away. They say

The paint dot on the bearing is not an indexing mark. Our bearings go through a series of quality inspections and a particular color identifies the machinist who does the final machining operation.
 
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