The bargain bearings work okay, Like I said earlier, for engines I intend to spend some time with; I find it worthwhile to get name brand, graded bearings . Prefer old stock, US or European made or old stock Japanese made "NTN" or "NSK" branded.

Not the end of the world either way but the higher graded bearings are usually worth the effort for engines that will see a lot of use in airplanes