I found this from a long ago post from Thayerags, who used to hang here and had a lot of knowledge.
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If it came off of a Singer 66, it must be a 9-spoke. I don’t think they ever put a 6-spoke balance wheel on the model 66.
The reason that I asked, is because the 6-spoke wheels that I’ve come up with all seemed to have a deeper hub than the 9-spoke. I think that my 6-spoke wheels have all come from model 27 machines.
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