I ran accross these in one of my parts boxes a little while ago. There has been a bit of discussion about these on the site, since they are no longer made. When they were available, they ran $200 each, which was what we used to pay for whole trucks and not for a single bearing.
Anyway, as should hopefully show in the photo, here is a set of four brand new shiny Aetna A-1570 bearings, which are direct replacements for the old New Departure 928.
Price is **$old pending funds** shipped to Canada, slightly more to elsewhere on the Globe.
http://img.photobucket.com/albums/v2...r/DSCF0086.jpg
Edited to add: the fourth one is sealed in the tin can, for any youngsters who have never seen a bearing come in anything other than plastiwrap or cardboard.