ORIGINAL: DAN REISS
The manufacturer of those bearings is not proud enough to stamp them with his initials like SKF or INA and it may be for a good reason. They could be made in China. In the future get a name brand set of bearings. They cost a little more but are well worth. Dan.
The two eby dealers sell "branded" bearings. My thoughs exactly about not showing the brand on them.
Don