How to Thread a Sewing Machine Bobbin?

Threading the bobbin of a sewing machine is an effortless task. Make sure the tension of your sewing machine is settled, and you follow the necessary steps. The thread needs to be smoothly and evenly wound in the bobbin. The smooth and even thread will result in accurately formed stitches.

Follow the steps we will be mentioning down below to know how to thread a sewing machine bobbin properly.

Threading a sewing machine bobbin

  • The spool of thread should be placed on the spool pin very carefully. Most machines come with a plastic wheel called a spool cap, which is placed vertically on the machine.
  • Be sure to place your thread on the thread guide, which is closest to the spool pin, and headed for the bobbin that guides the thread in the thread guide.
  • In some machines, the thread guide might look like a disc. Unwind 18 inches of thread and bring it around the backside of the bobbin to hold tension on the thread.
  • Select the bobbin that works perfectly with your machine.
  • Now put the bobbin onto the bobbin winder.
  • Draw the tail of the thread through its center while the thread is still wrapped in the bobbin winder. It will leave a small tail on the end.
  • If there is no hole in the bobbin, then wrap the thread around the bobbin a few times, leaving sufficient thread for you to hold the tail when the bobbin starts to wind. Always remember the lesser tail you have to hold the better because it might get tangled and create a mess.

Engaging the bobbin winding

  • Now slide the bobbin pin towards the small round plastic part of the bobbin winder and keep pushing it until you hear a click.
  • The bobbin pin is now linked with the bobbin winder.
  • Start pressing down your foot pedal, and remember to start slowly. Be at a steady and comfortable speed.
  • Fill the bobbin fully with the appropriate thread, so you do not have to do it all over again.
  • Holding the tail of the thread you used to thread the needle, crank the handwheel until the needle picks up the bobbin thread.
  • Bring both pieces of thread out to the left side of the machine, and you’re all set to start sewing.

Bobbin threading do’s and don’ts

There are certain aspects that you should keep in mind while going through this procedure. Here are some of the dos and don’ts of bobbin threadings that you need to know.

  • The thread on a bobbin should be as smooth as the thread of the spool that you bought.
  • The size of the bobbin should always be larger than the size of the thread on a bobbin. Otherwise, the brakes of your machine may need readjusting.
  • Always avoid using old and rusty bobbins in your sewing machine. They will cause problems. If you do not have a new one and have to use an old or rusty bobbin, then be sure to abrade the rust and oil it adequately.
  • Select the appropriate bobbin for your sewing machine. They are an inexpensive but essential aspect of sewing. Choosing a wrong bobbin may cause several problems while sewing.
  • Always keep some extra bobbins to use when needed.
  • While sewing, if your bobbin thread knots up, it is usually caused by the top threading of the sewing machine or because of the needle.
  • The thread that comes off the bobbin is used to be threaded for the bobbin case itself. It is placed in a bobbin case, so it takes the form of an upside-down V shape.


This procedure is pretty easy for the people who sew regularly. This is something fundamental that we all should know about. Go through the article thoroughly and follow the steps that we have mentioned above to know how to thread a sewing machine bobbin properly. It also mentions the things you should and should not do while doing it.

Megha Kothari

Megha leads the content strategy and oversees an amazing team of writers, editors, and designers, all having one goal in mind – to create brilliant content that helps people make the right purchase investment. When she is not working, you can find her enjoying making delicious food and planning her next travel.

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