I just had both a Komet Super and a Schwinn Approved hub apart.
The Schwinn Approved version is larger in diameter with 52 vs 50mm hub flanges.
The bearings are larger, and the internals will not swap.
I have no doubt that the Schwinn hubs were made by F&S, but they don't appear to be Komet Super models.
The hub on the left came from a 20" Schwinn S6 wheel, the right hub was laced to a chrome 26" S7 rim.
I can't say if either were completely factory wheels. Both wheels came from an old bike shop cleanout.
The only markings on the Schwinn Approved shell is "Germany".
The oil port is smaller on the Komet Super hub.
The Schwinn hubs appears to be somewhere in between the Komet Super and the larger Torpedo coaster brake hubs.
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