Question about Simplicity Fashion Pro SW2145 Mechanical Sewing Machine

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Bobbin size Please let me know what size bobbin is used in this machine.  I want to buy extras, but could not find anything in the manual.

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This machine uses a class 15 bobbin.

Posted on Jul 05, 2009


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Posted on Jan 02, 2017


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What size bobbins, my machine is making a thumping noise, brought it to be looked at and they said the bobbin i was using was too small ( he s pretty sure)

What model sewing machine do you have? That will make it easier for us to recommend a bobbin.
ALSO, very important to use the small brush they give you with the sewing machine and clean out the bobbin area of all the dust that builds up. If you do not have the brush with the machine, you need a make up brush or a small think brush that looks like this below. Sewing machine parts are made to fit very closely together and even the smallest amount of dust and dirt build up can make the machine operate improperly and make that thumping noise you heard. Good luck Walter.

Apr 14, 2016 | Sewing Machines

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"bobbin size

Consult your owner's manual to find out what bobbin to use in your machine. There are many bobbins available, some will actually fit in your machine, but they may be a slight bit different size that will negatively affect your machine's operation. If you don't know which bobbin to buy, take the machine's manufacturer name and model to a sewing shop and ask if they can sell you the bobbin for your machine. Better yet, find a local dealer who supports your particular machine's manufacturer. You may even find the appropriate bobbin online by searching:
Manufacturer + Model + the word "bobbin"


Dec 30, 2015 | Sewing Machines

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Bobbin size for Brother 5001? Not used my machine for a while...took it out, first it wouldn't work because it was Jamed up, oiled it and got motor working. Stitch size still ver stiff, and won't do a...

I just looked on ebay and there is a store that sells your bobbins, 25 for $13.99. You can google your machine bobbins, by entering "brother xl 5001 bobbins" and you will get the sites for them. You may find that a class 15 bobbin will work or a SA156. There are also sites that sell your manual, and of course, you can always call Brother at 1-877-276-8437 and complaint that they do not have your manual available for free to download.

Mar 13, 2011 | Brother Sewing Machines

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What type of bobbin should I use in my Memorycraft 4000.. Plastic or metal..I have been using metal, is this ok?

You should be using plastic bobbins for the MC4000, see: . Usually the machine comes with a handful of the correct size and type bobbins. Using the wrong bobbin could result in the needle hitting the bobbin and damage may occur. (Broken needles are the most likely possibility; damage to the bobbin case or timing could occur and would require the machine be serviced.)

When you buy more bobbins, make sure that they are labeled for Janome or a machine that takes the same size bobbin. See this site for a list of machines that also take this size bobbin:

I hope this helps.

Cindy Wells

Mar 01, 2011 | Janome Memory Craft 4000 Sewing Machine

2 Answers

My Simplicity Americana Series SE3 has quit hooking the bobbin thread and it will not embroider. I had a series of jams and got them clear, re-threaded the machine and tried new bobbins. Is there...

You can download the manual here:

That should help make sure you're using the correct size bobbins.

Does this have a vertical bobbin?

If so, there are a few things you can try. Cleaning the bobbin case and bobbin area is key, but you've done that. A defect in the needle can cause this, so try a brand new needle. Modern fabrics are hell on needles and I find they have to replaced much more often than my budget cares for, but it saves a lot of problems.

Also, check every thread guide on the machine, everywhere. Sometimes they can be loose, or have a nick, which can trap thread and cause this type of problem. Unthread, check each guide closely, use a magnifying glass. If any are loose, tighten them. If you find a nick, a bit of plumber's Teflon tape over the spot may help. Or try to buy a new guide. You can even remove it and try to file it smooth if it allows that.

Another thing; Bobbin cases can become so tightly tensioned that the thread can't move. This may be fixable with some tinkering, but take care.

Look at the bobbin case - you'll see it has a very small screw on it. This is the tension adjuster. First, using a Sharpie or something like it to use so you can very clearly mark the exact position of the screw as it is now, in case you need to restore it.

Next, dangle the bobbin case by the thread tail and give it a shake, like you were playing with a Yoyo. If the tension is OK, the bobbin case should slide down the thread slowly but smoothly with each shake. If it just flies down the thread, it's way too loose. If it doesn't move at all, it is much too tight.

You can try to adjust the tension by moving that screw. Move it very, very slightly. Test after each adjustment of the screw. Not meaning to be repetitive but only use tiny, tiny movements of the screw each time, there isn't that much play in it.

With luck, you find the sweet spot for tension. If not, you may have to buy a new bobbin case. I always keep a spare on hand to use for extra heavy threads, like button thread. I keep the spare's tension loose so it'll work with those coarse threads.

Hope something helps.

Nov 28, 2017 | Simplicity SE3 Computerized Sewing Machine

1 Answer

NewHome L-372

You are sewing heavy thread in a machine designed for sewing clothing but it can be done. Use a size 18 needle or a top stitching needle(it has a larger eye). Thread the machine and adjust the tension to 8 or 9. Set the stitch length at 3 or 4. If you still get loops on the bottom, wind the thread around the bobbin winder thread guide once for more tension and then thread it normally. If you do this, lower the tension to 5, test sew and then tighten the tension until the loops go away.

Aug 05, 2008 | New Home L-372 Mechanical Sewing Machine

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