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Old 08-20-14, 10:36 PM
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Wythnail
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Join Date: Nov 2013
Location: Austin, Tx
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Bikes: 78 Raleigh Pro, 80's Centurion Signet (fixed), 81 Lotus Eclair, couple projects always rotating through

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Bearing surface wear question.

Yo yo yo everybody.

Went to service an old bottom bracket, and the fixed cup shows very slight "brinelling" (I don't know if that is a word or if it is spelled correctly).

Question is, in general, how much wear is acceptable for you experienced mechanics to reuse a cup? Or is it one of those things that once you see wear it'll deteriorate quickly and warrent a replacement soon anyway.

This is a general question about all bearing surfaces, but for the sake of an example, here's a pic of the cup I took off today. I plan on reinstalling, as it doesn't look too bad to me, and the bike isn't that special.

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