You asked: What are the different classes of bobbins?

Are Class A and Class 15 bobbins the same?

Also, while many of those 60 different bobbins have a different look, many look almost the same and any differences are very subtle. The Class 15 is also known as the A style. Its overall size is about 20.3 mm or the size of an American nickel. Its depth is about 11.7 mm and comes with 2 flat sides.

Are all Class M bobbins the same?

All have the same general design, and you may be able to use these bobbins on machines like the Onique Quilter, the Blockrockit or others with ease. … Some sources recommend that you have at least 10 to 15 M class bobbins on hand for your various needs, but you may even find that you benefit from having more.

What machines do class 15 bobbins fit?

This package of Dritz Class 15 metal bobbins comes packaged in a reusable plastic storage case. They fit some of the following machines: Singer, Baby Lock, Riccar, Simplicity and White. Not compatible with the following machines: Bernina, Elna, Husqvarna/Viking, Janome/New Home and Pfaff.

What is the difference between Class 15 and Class 15J bobbins?

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.

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