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Most problems with machine stitching are caused by improper threading — either in the upper thread track or in the bobbin. That’s why learning how to wind a bobbin properly is an essential skill for machine sewing.
The bobbin holds your bottom thread under the machine’s needle plate. This thread is caught by the top thread (carried by the needle) as it passes under the plate. As the needle goes back up, the bobbin thread and top thread interlock between two layers of fabric. This is how your stitch is formed.
If you’re new to sewing, get my Sewing Machine Troubleshooting Book. It’s a handy reference book to have on hand for when you run into sewing machine problems.
Choose the Correct Bobbin
Before winding a bobbin with thread, make sure you are using the correct style and size for your machine. Class 15 bobbins are the most common but check your manual. For example, many Brother sewing machines use a slightly larger bobbin. You might be able to cheat with a smaller bobbin, but you will only get the best stitch quality with the correct style bobbin for your machine. Using the correct bobbin will also prevent you from running into other sewing machine problems.
How to Set Up Your Machine for Winding a Bobbin
All sewing machines are a little different. First, you’ll need to locate the bobbin winding pin. This is typically on the top of your machine. Your sewing machine manual should have a diagram to help you find it.
Can’t find your manual? Read: Where to Find Replacement Sewing Machine Manuals for FREE.
Put your spool of thread on the top pin of your sewing machine. Be sure it unwinds easily without catching. Then, pass the thread through the tension disk on top of your machine, following the guides for your bobbin. There will be a diagram in your sewing machine’s manual for this.
You should feel slight resistance as you pull the thread. Thread the end through the hole at the top of an empty bobbin. Then, place the bobbin on the winding pin and push the pin to the right to engage the bobbin winder. On older sewing machines, you may also need to turn a small wheel inside the handwheel to disengage the needle’s motion. Again, consult your manual for the exact procedure for your machine.
Possible Problems When Winding a Bobbin
If your bobbin is not winding evenly or the thread seems to be wound too loosely, check to be sure the thread passes through the tension disk properly at the top of your machine. If the thread is still too loose, you may place a finger on the thread as it winds (lightly) to increase tension and get a tighter wind.
Here are some troubleshooting articles for other problems you can encounter with your bobbin:
- Why Is My Bobbin Not Winding Evenly?
- Why Does My Sewing Machine Not Pick Up My Bobbin Thread
- Why Does My Bobbin Thread Keep Breaking?
Stand-Alone Bobbin Winders
If you want to wind bobbins without disturbing the top thread on your sewing machine, there are battery-operated automatic bobbin winders available. They are sometimes called “side winders.” They are super useful!
I hope this post has helped you learn how to wind a bobbin on your sewing machine. Do you have any other tips to add? Share them in the comments below.
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I have a sidewinder! They are fabulous!