Thread: Ball Bearings
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Old 05-21-17, 05:23 PM
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wschruba
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Yes, the bearings under the driving elements wear out quicker.

I'm going to assume that many bike shops will just want to sell you an entire Tange/Wald bottom bracket (cups, bearings, cones, spacers), as that is the only way to guarantee that you get the right bearing configuration that works with your bottom bracket.

You can use loose bearings in the cups, though it is touchy assembling them without knocking them out of position. 5/16" bearings are also not super common in bike shops, though as you know, they do exist on bicycles. I used to stock several common size retainers for American bottom brackets, rather than try to deal with loose bearings...bring the old bearings with you, so they can visually match up the sizes, and assure you aren't going to be struggling with something that simply won't work.
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