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Amount different classes of bobbins hold, comparatively

Amount different classes of bobbins hold, comparatively

Old 10-31-2017, 09:59 AM
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Default Amount different classes of bobbins hold, comparatively

Does anyone know if this information is available? It seems to me like class 15 look like they hold more, but I've never measured it. Oh! I could weigh empty and full ones, and compare the weight of thread they hold. If no one knows where this info is, I'll try this.
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Old 10-31-2017, 02:04 PM
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Yes, a 15 class bobbin will hold more than a standard rotary bobbin, featherweight bobbin, 66 class bobbin. But I think a White Rotary will hold more, and a Bernina 7 Series machine will hold 75% more than the 15 class bobbin. M class bobbins hold about the same as a Bernina 7 Series bobbin. Don't have any charts with measurements, but I'm a sewing machine tech, and work with all kinds of bobbins.

Just a reminder...only use the bobbins that were intended for your machine.
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Old 10-31-2017, 02:07 PM
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The length of thread in each bobbin also depends upon the weight of the thread
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Old 10-31-2017, 02:17 PM
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It depends on if the bobbin is pre-wound or self wound according to this link.

https://www.superiorthreads.com/educ...obbin-capacity

I use pre-wound bobbins all the time for regular piecing. There is a lot of thread on them. Totally worth my time to use these. Yes, I also wind about 5 or 6 bobbins at a time when I feel like it. Lazy stitcher!
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Old 10-31-2017, 02:29 PM
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Another link to which bobbin to use in which machine is in this thread:

https://www.quiltingboard.com/links-...n-t266129.html
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Old 11-03-2017, 07:29 AM
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It seems to me that my Viking 6430 bobbins hold more than some of my other bobbins.
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Old 11-04-2017, 07:14 AM
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I'm a fan of prewounds too. I take the cardboard sides off before using. The bobbins are wound so precise and even and I rarely have bobbin thread issues.
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Old 11-04-2017, 07:49 AM
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Originally Posted by Onebyone View Post
I'm a fan of prewounds too. I take the cardboard sides off before using. The bobbins are wound so precise and even and I rarely have bobbin thread issues.
I agree. I have started using the prewound Superior bobbins in my Janome and love them. I have been using the Magna-Glides for my LA.
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Old 11-04-2017, 05:07 PM
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I agree, I think the size/weight of the thread is actually a bigger variable than the bobbin itself. I've used Bottom Line (60 wt) for several years and just recently bought a cone of MicroQuilter, which is 100 wt. I wound a bobbin full and it took forever to fill, quite a bit longer than it takes me to wind a bobbin with Bottom Line.
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Old 11-04-2017, 07:33 PM
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Originally Posted by quiltedsunshine View Post
Yes, a 15 class bobbin will hold more than a standard rotary bobbin, featherweight bobbin, 66 class bobbin. But I think a White Rotary will hold more, and a Bernina 7 Series machine will hold 75% more than the 15 class bobbin. M class bobbins hold about the same as a Bernina 7 Series bobbin. Don't have any charts with measurements, but I'm a sewing machine tech, and work with all kinds of bobbins.
Just a reminder...only use the bobbins that were intended for your machine.
See, now, I knew some one here would know this info. And of course, the type of thread would make a difference, that's why I said, "Comparatively."

The reason I was thinking about this is that if one had 2 different machines to use for, say, FMQ, the type of bobbin, and therefore the amount of thread it holds, could be a deciding factor. So, I will try one of my 15 class bobbin machines instead of one that uses the 66 class bobbins. That way, I won't have to run out of bobbin thread as much. Its too bad that new Lydia uses 66's.
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