Info from Brex63 The sprocket carrier bearings I bought were the wrong size even though they were listed for bike. I have listed sizes:

Rear wheel bearings (×2) - 6004 - 2rs Real wheel bearing seal (×1) - 30-42-7

Sprocket carrier bearings (×2) - 6005 - rs Sprocket carrier seal (×1) - 30-47-7

Rs = rubber seal, I assume!

Obtained from