Originally Posted by warewolf
Is the sprocket carrier bearing the same OD as the 6205 wheel bearings... 52mm? (bike's not handy to check).
I can't get a 3205 or 5205 here. Can get a 4205 though: 25x52x18.
WRONG!!! The bearing is actually 25x52x20.6 (angular contact ball bearing, double row, seals on both sides)... likely an SKF "3205 A
-2RS1/MT33", should be available, will check on Monday.
The product lists I was reading previously did not include the angular contact bearings.
It is NOT an SKF 4205 ATN9, a deep groove ball bearing double row
So it looks like the first digit of the code can vary depending on the market/supplier, as someone alluded to earlier. In this instance, it could be a 3205, 5205 or 6205 !!!