Wind and Insert the Bobbin in Four Steps
To fill a bobbin on your Brother machine, you wind thread onto an empty bobbin using the bobbin winder, then place the wound bobbin in the bobbin case underneath the needle plate. The whole process takes about two minutes once you know where each part is. Most Brother machines use the same basic method, whether you have a basic model or one with more features.
The bobbin is the small spool that holds thread underneath your fabric. When you sew, the top thread (from your needle) loops around the bobbin thread to create a stitch. If your bobbin is empty or nearly empty, your stitches will skip or break. Winding a fresh bobbin before you start a project prevents this problem.
Key Takeaways
- The bobbin winder is a small wheel on the top or side of your Brother machine that you use to wind thread onto an empty bobbin before sewing.
- You must remove the bobbin case (the metal or plastic housing under the needle plate) to insert a wound bobbin, and it clicks or screws back in place.
- Thread the bobbin winder by running thread through the tension disc on the winder itself, not through your machine's needle threader.
- Wind slowly and stop as soon as the bobbin is full — overfilled bobbins jam and cause thread tangles underneath your fabric.
Locate the Bobbin Winder on Your Machine
On most Brother machines, the bobbin winder sits on the top right side of the machine, near the thread guides. It looks like a small wheel or spool holder with a tension disc (a thin metal or plastic ring) next to it. Some older or compact Brother models place the winder on the left side instead. Check your manual if you cannot find it — the manual diagram will show the exact location for your model.
The bobbin winder has a small metal spindle (a rod) in the center. This spindle holds the empty bobbin while you wind thread onto it. You will also see a tension disc nearby — a flat ring with a small slot or opening. This disc controls how tightly the thread winds onto the bobbin, so the bobbin fills evenly.
Thread the Bobbin Winder Correctly
Place an empty bobbin onto the spindle of the bobbin winder. The bobbin should slide on easily and sit flat. If it does not fit, you may have the wrong bobbin size — Brother machines use standard bobbins, but some models accept plastic or metal bobbins, and they are not interchangeable.
Pull thread from your spool (the one on your machine's main thread post) and guide it through the tension disc on the bobbin winder. The thread should pass through the slot in the tension disc — you will feel slight resistance as it goes through. Do not thread the bobbin winder through your machine's needle threader or main tension discs. The bobbin winder has its own separate tension system.
Once the thread is through the tension disc, wrap it around the bobbin two or three times by hand, going clockwise. This anchors the thread so it does not slip when you start winding. Hold the thread end loosely in your hand as you prepare to wind.
Wind the Bobbin at the Right Speed
Engage the bobbin winder by pushing the spindle to the right (on most models) or pressing a button labeled "Bobbin Wind" — your manual will show which. The winder wheel should begin to turn. As it turns, the thread wraps around the bobbin in tight, even layers.
Wind slowly. Use the foot pedal gently or let the machine run at a slow speed. Fast winding can cause the thread to slip or the bobbin to overfill, which creates jams and tangles. Watch the bobbin as it fills. The thread should wrap in neat, parallel lines from one end of the bobbin to the other.
Stop winding as soon as the bobbin is full — when the thread reaches the edges of the bobbin and cannot fit another layer. Most Brother machines have a sensor that stops the winder automatically when the bobbin is full, so you may hear a click or feel the winder disengage. If your machine does not have an automatic stop, turn off the machine and cut the thread.
Remove and Insert the Bobbin into the Case
Slide the full bobbin off the spindle. Cut the thread that connects it to the spool. The bobbin is now ready to use, but it must go into the bobbin case before you can sew.
Locate the bobbin case underneath the needle plate (the flat metal plate with the needle hole). On most Brother machines, you access it by removing the needle plate — unscrew the two small screws on either side of the plate and lift it away. The bobbin case sits in a small compartment directly under the needle.
If your machine has a drop-in bobbin design (common on newer Brother models), you do not need to remove a separate case. Instead, you lift the needle plate and drop the bobbin directly into the round chamber underneath. Check your manual to see which design your machine has.
Place the Bobbin in the Case and Close It
For machines with a removable bobbin case: Hold the case so the small hook or latch faces you. Insert the wound bobbin into the case, then pull the thread through the slot in the case. The thread should sit in the tension spring (a small metal arm inside the case). You will feel the thread catch slightly as it passes through. Reinsert the case into the machine — it usually clicks or screws back in place. Make sure it is fully seated before you close the needle plate.
For drop-in bobbin machines: Drop the wound bobbin into the chamber under the needle plate so it sits flat. Pull the thread up through the slot in the chamber. The thread should catch in the tension spring just as it does in a removable case. Close the needle plate and screw it back in.
Pull up on the top thread (the one in your needle) gently. You should feel the bobbin thread come up with it — this means the two threads are correctly threaded and ready to sew. If the bobbin thread does not come up, rethread the bobbin case and try again.
Common Mistakes to Avoid
Do not wind the bobbin too fast. Speed causes the thread to slip on the bobbin, creating loose, uneven layers. Loose bobbins produce weak stitches and tangles. Wind at a steady, slow pace instead.
Do not overfill the bobbin. A bobbin that is too full will not fit into the case, or it will jam as you sew. Stop winding the moment the bobbin reaches its full capacity. If you are unsure, wind a little less rather than a little more.
Do not thread the bobbin winder through your machine's main needle threader. The bobbin winder has its own tension disc. Threading through the wrong path creates loose, uneven bobbins that skip stitches.
Do not forget to pull the bobbin thread up through the slot in the bobbin case. If the thread does not sit in the tension spring, your stitches will be loose and uneven on the underside of your fabric.
Frequently Asked Questions
How do I know when the bobbin is full?
The bobbin is full when the thread reaches the outer edge and cannot fit another layer. Most Brother machines stop the winder automatically with a click or beep. If your machine does not have an automatic stop, watch the bobbin and turn it off when the thread reaches the edge. A slightly underfilled bobbin is better than an overfilled one.
Can I use a bobbin from a different brand?
Brother machines use standard bobbins, but check your manual to confirm whether your model takes plastic or metal bobbins. Some machines accept only one type. Using the wrong bobbin type can cause it to jam or not fit in the case. If you are unsure, buy bobbins labeled for your specific Brother model.
What if the bobbin thread does not come up when I pull the top thread?
The bobbin thread is not threaded through the tension spring in the bobbin case. Remove the bobbin case, pull the thread through the slot again, and make sure it sits in the small metal tension spring. Reinsert the case and try pulling the top thread again. If it still does not work, rewind the bobbin and start over.
Do I need to rewind the bobbin between projects?
Only if the bobbin is nearly empty or you are switching to a very different thread color. A bobbin with thread left on it can be used again. If you want to change colors, you can either wind a new bobbin or unwind the old thread and rewind with the new color.
Why does my bobbin keep jamming?
Jams usually happen because the bobbin is overfilled, the thread is not seated in the tension spring, or the bobbin case is not fully inserted. Check that the bobbin is not too full, that the thread passes through the tension spring, and that the case clicks firmly into place. If jams continue, the bobbin case may be damaged — contact Brother support for a replacement.