We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember "tg"
saying something like:

I have to replace some bearings in a generator I have. I discovered they are a common size - 6302-2RSH. What I want to know is, do
bearings come in different grades or qualities?

They certainly do.

Or are they all the same? I want to replace these bearings with the best I can get.
Thanks for any pointers.

Avoid RHP for a start. SKF are good, but Toyo are the best.

I can tell you from some time I spent directly involved in making the
things that Toyo were the most exacting specs.
--

Dave