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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,
dicki-
Caged bearings are used largely as a convenience for assembly, loose balls will be fine : )
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loose bearing of a similar size
Same size
look at the price of 22 nice bearings yet
Very little
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don't even know any bearing shops let alone have a fave one !
Use my fave then
https://simplybearings.co.uk/shop/p37908/1/8-inch-Diameter-Grade-10-Hardened-52100-Chrome-Steel-Ball-Bearings/product_info.htmlIf you go down the loose ball route, you will need more than the number in the cages, usually one extra per side in a BB
could you link to that german seller
Search eBay.co.uk for BB-7400, that's what I did.
withered_preacher
snottyotter
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.