10pc MF52ZZ MF63ZZ MF148ZZ Miniature Flange Bearing Thin Wall Metal Shielded
This unbranded ball bearing feels sturdy and gets the job done without any fancy names.
20pc MF52ZZ MF63ZZ MF148ZZ Miniature Flange Bearing Thin Wall Metal Shielded
A nice touch is that the unbranded design lets you fit it into various setups easily.