Recently the somewhat crotchety man who cleans and adjusts my sewing machines gave me a big frown and said, "You're not even using the correct bobbin size." (Bobbin size?) I always thought as long as the bobbin is round and has a hole in the middle and doesn't spit itself out of the machine it was okay to use it.

What kinds of problems can be experienced if you're using the wrong size? And how do you know what size your machine uses? (My manuel doesn't tell me.)

Yes size does matter. You should google your machine and see what comes up. It can really make a difference with sewing and quilting mine will throw a fit if it is not fitting correctly.

Not all bobbins fit in all machines.

If your manual doesn't tell you look up your machine on the web and see what it says, or let us know here, I'm sure someone can tell you.

It could make a difference in how your tension gets adjusted and how your machine operates overall.

I'm with you though and would think that if it fits.... it should work.

What machine do you have?

Use only the bobbins made specifically for your machine or it will mess up the tension and all sorts of other things. Janome bobbins for Janome machines, singer bobbins for singer machines and the list goes on.

There are as many sizes of bobbin as there are machine (or so it seems at times). Pfaffs are different than Berninas and Singer, and Janome. Some are metal some are plastic, some even screw apart!

Yes, google your machine or get on a site that sells bobbins and type in your machine and the correct one should come up.

Wrong size/style will mess with your tension, stitches and can at times break needles and throw your timing off......

Does dress size matter?? I sure wouldn't want to wear the incorrect size of shoes. My machines don't want a wrong size bobbin in them either!

Bottom line......Size really does matter.

You will break needles. Wrong size bobbin can really mess up your work. Some machines don't even want pre-wound bobbins without a special seat.

Yes it does matter alot.

Everyone of my machines use a different bobbin. Makes things challenging but not paying attention makes a huge mess!