I need to replace the bearings in a few BB’s I have but I can find any online

I’ve measured them as 7mm OD 31mm ID 21mm
I need 9 or 12 of these if anyone knows where I can find them.

Any help would be appreciated

shimano had them made to a special design to prevent exactly what you’re trying to do 🙁

BETD and so on sell quality replacements but, tbh, complete new XTR BB’s from Germany often come out cheaper.

If they are for HT11 BBs then you need 6805 2RS or 61805 2RS. BUT they are 7mm wide, Shimano use a 6mm wide bespoke version in their cups.
Hope also use a bespoke version, so no aftermarket bearings available.
What cups are you using?

21mm ID? What’s that from? Hope is 24mm, Shimano 25mm without tophats.

these are for KCNC titanium ISIS bb’s
they take three bearings per BB.
the Bearings don’t have any markings on them, nothing at all.

There are some available HERE but they have an extra 0.5mm on the internal diameter.

My Control Tech ISIS BB uses the above bearing size, just thinking that maybe yours is the same…

Thanks for the link.
Is thtat price for each bearing ?

Yessum. It makes you wince when you realise you need three per BB, but if you figure-in that I got over four years out of my last set*, it’s not too bad. From new I clean and refill with my own bearing grease before fitting. It’s an OCD thing…

* Obviously this will depend on the sealing of your component