Are metal bobbins universal?
Emily Wong
Updated on February 21, 2026
Are metal bobbins universal?
Can I interchange metal and plastic bobbins if they are the same size? Metal bobbins and plastic bobbins of the same size can NOT be swapped. Machines are set for a very precise tension setting. If they are set for a lighter plastic bobbin, the tension will change if a heavier metal bobbin is used.
What are the different types of bobbins?
Understanding Bobbins: What Every Sewist Should Know
- The Class 15 (A Style) Bobbin: The Class 15 is about the size of an American nickel.
- The L Style Bobbin:
- The M Style Bobbin:
- The Singer 163131 Bobbin:
- The Singer 8228 Bobbin:
- The Class 15J Bobbin:
- The Class 66 Bobbin:
- The Bernina 0115367000 Bobbin:
What is a bullet bobbin?
The bullet shuttle is long and slender, shaped like a bullet, with a pointed tip that is sometimes called the hook. The bobbin too is long and slender to fit inside the shuttle; in this regard it is very different than the fat rotary bobbins of later sewing machines.
Do all bobbins fit all machines?
There is no such thing as a universal bobbin, meaning no single bobbin will fit every sewing machine. Some sewing machines tolerate a slightly different bobbin better than others, but using the incorrect bobbin will most likely affect the stitch quality of your project, and could result in damage to your machine.
Are all sewing machine bobbins the same size?
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.
Should I use plastic or metal bobbins?
The rule of thumb for bobbins is that metal ones are for metal bobbin cases and plastic ones are for plastic bobbin cases. If you try to place a metal bobbin in a plastic bobbin case you may see that the bobbin case wears out a lot faster than it is supposed to.
Can I use a metal bobbin in my Janome Sewing Machine?
All top loading Janome sewing machines use the same clear plastic bobbins for proper stitching. Metal bobbins interfere with the magnetic hook system. Good quality thread is also a must!
What holds the bobbin case while sewing?
Bobbin spindle- holds the bobbin while it winds.
Will brother bobbins fit singer?
Just because you own a Bernina, a Janome, a Singer, a Babylock, a Pfaff, a Brother, etc., does not mean that every bobbin from that sewing machine manufacturer will fit your same make, but different model machine. The bobbin type should be verified in your owner’s manual or with your local sewing machine dealer.
Are all bobbins universal?
Are there sewing machines with all metal parts?
If you want a sewing machine with all metal parts you may have to go back to the vintage machines before the 1960s or 70s. It was somewhere in those decades that plastic started to make an appearance in the different sewing machine models.
Do Singer sewing machines have metal frames?
Also, a lot of the Singer sewing machines come with a plastic frame instead of a metal one. Yes, they do but like other sewing machine makers, they do not give every model they make a metal frame. Brother is a bit like Singer in that it reserves the metal parts for their heavy-duty series of sewing machines.
Do Bernina sewing machines have metal gears?
The company’s Touch and Sew series does not. Many of the Bernina sewing machine models come with metal gears as do the other top brands. One way to tell if your machine has metal gears or not is to check your bobbin hook. If it is plastic most likely the gears will not be made of metal.
How do I know if my sewing machine has metal gears?
One way to tell if your machine has metal gears or not is to check your bobbin hook. If it is plastic most likely the gears will not be made of metal. Another way to tell is to lift the machine. If it is heavy then you probably have metal gears.