The First # is the item number, followed bya a short description, the next number is the number on the bearing followed by another short discription and dimension if we had it.  Please look at the picture in the gallary.  MOST of these item numbers contain several of that same bearing for onr money.  Below the discription pages is the lot numbers for the auction.  You will need to determine what lot # your item is in.  It may be with several other bearings in a lot.