Hi there,

Did you ever think which bearing standards are used in the dismantling (serviceable) bottom brackets? It would be good to have possibility to buy cheap sealed industrial bearings instead of the worn out one. I am first of all interested in bearing sizes (or standard) used in Am. Classic BB ISIS.
The ABI offers a variety of bearings for integrated ISIS bottom brackets but none for non-integrated. There is also a vast selection of bike bearings but no reference which bottom brackets do they fit. The same situation is with the SKF Company, which manufactures excellent bottom brackets and has huge nomenclature of bearings. I understand that it is not reasonable for such manufacturers give access to information on the bearings used in one or another bottom brackets but maybe someone has already measured the bearings of his own dismantling bottom bracket and could share the bearing size (or standard) used in the specific BB (preferably ISIS standard)?