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dicki in reply to @gbj_tester

You've answered your own question there. The probability of finding spare parts from 30 years ago is pretty slim.

If you mean cage where you wrote race, then it's fine as a second best option to run that BB with loose balls, so just get some good quality steel balls from your favourite bearing shop. There's a German ebay seller with NOS caged balls for about £40, my German isn't up to knowing whether that's per side or per set.

so these could be replaced with loose bearing of a similar size ? 1/4"
by race i meant the cage that holds the bearing in place, here is the singular one in question

i don't even know any bearing shops let alone have a fave one ! , would a modern manufacturer like fag or skfstill make the cage and bearing set ?

could you link to that german seller i'll take a look but it sounds a bit pricey, that being said i haven't had a look at the price of 22 nice bearings yet,

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withered_preacher in reply to @dicki

Caged bearings are used largely as a convenience for assembly, loose balls will be fine : )

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gbj_tester in reply to @withered_preacher

Caged bearings are used largely as a convenience for assembly

Not strictly true, the cages are there to reduce friction and therefore heating in high speed bearings. Obviously this is moot in something which rarely goes over 100rpm 😉 Hubs had loose balls for decades (and many still do) and they typically rotate at three to four times crank speed.

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