well i managed to replace the flogged out bearing the crank handle socket is effectively the nut (59) on above once this was undone. was able to replace the bearing. For others bearing part no 64 is a bearing no.6203 40mm x 17mm x 12mm.........and cost $4.20 from veales.

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this pic is part '59'
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everyone likes pics and i think it is beneficial to other supercut owners to document this!