Are all bobbin cases the same size?
Types of Bobbins
Bobbins not only come in different sizes, but also in metal as well as plastic, and empty as well as pre-wound. While machines can only use one bobbin size, whether it is plastic or metal does not typically matter, however consult your machine manual to be sure.
Are brother and singer bobbins interchangeable?
For the most part yes they are. But like sewing machines, bobbins are not all made the same. Even if you have the same series of a sewing machine as someone else, there will still be some differences to each machine. Bobbins are the same way.
Are all class 15 bobbins the same?
It’s worth noting that the L Style bobbins are the same diameter as the Class 15 bobbins. As such, you can use L Style bobbins in a sewing machine that uses Class 15 bobbins. However, a Class 15 bobbin is too wide to fit in a machine that uses L Style bobbins.
What happens if you use the wrong size bobbin?
The short answer is YES! Filling a sewing machine bobbin too tightly can make a plastic bobbin bulge or stretch the thread if you are using a metal bobbin. This may be hard to see but can cause all kinds of problems. Plastic bobbins can become compressed in the center causing the bobbin to distort.
Can you use different color bobbin thread?
You can use whatever color you want, but you don’t need to change color to match the top thread. Your bobbin thread should not show through the top layer of stitching. … You will always want to use a lightweight polyester bobbin thread, such as BobbinFil or any other 60-70 weight thread.
What is the difference between a 15 and a 15J bobbin?
They look almost identical, but class 15 bobbins have flat ends, while class 15J bobbins have slightly curved ends. Sometimes they appear to work interchangeably, but even if they fit into your sewing machine, there is a risk of them jamming your machine up and causing major damage.
What size bobbin does a Brother sewing machine use?
This machine uses SA156 bobbins which are class 15 type bobbins. Use of any other bobbin may result in injuries or damage to the machine. We recommend the use of Brother genuine parts and accessories.
Are all Singer bobbins the same?
Use only bobbins that are the same class/style as those that come with your machine – don’t substitute! SINGER® branded bobbins are recommended for best results. … The thread that is wound too loosely can cause machine jamming. The thread that is wound too tightly can distort or break the bobbin.
Can I use metal bobbins in Singer 4423?
Don’t use metal bobbins! As a professional costumer, metal bobbins can hurt these machines and can make your threads break in the middle of a seam. … I bought the M/N 4423 and need additional bobbins.
What size is sa156 bobbin?
High Quality Clear Plastic Bobbins, 7/16″ deep. Size Class 15. Security notch for consistent bobbin thread winding.
What are the holes in bobbins for?
There should be a tiny little hole on the side for you to put your thread through. Thread from the inside of the bobbin, out, so your thread sticks out the side an inch or two.