Dommie gear urgent question

[seasong]

Hallo there,
the dynamo fibre gear wheel of my 1957 model 77 has worn out, as I can't find replacement I've had one machined on a lathe, as it has been done in alluminium my doubt now is: was it in fibre for electrical conduction matters? Any help will be greatly appreciated!

[33d6]

No it wasn't done for electrical conduction matters but rather for quietness and cheap to make.

[Revband]

Yes the "fibre" gear was made in a mold using cotton waste and resin, very cheap to produce.

There are certain magnetos which need an insulated gear but very few still exist.

[seasong]

to 33d6 & Revband: I really appreciate your usefull advises, I'll mount safety the alluminium one then; many many thanks from an entusiast from Italy!