Bobbin speed


Checked Janome's website for info on bobbin speed (rpms). All I found was that Janome bobbins should be wound on med speed. Being that each machine is different, my question is:

On machines with numbers for bobbin speed does: 1= 1000 rpm, 2= 2000 rpms, and so on?

Can't find this info in any of my books or online search. I would like to know what speed I'm winding my bobbins at. Different threads sometimes need a different speed and knowing this would be my guage.


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