What's the difference
 

Between the bobbin and case for a vintage 15-91 and a modern style class 15 bobbin case?

Boy crocee, don’t you ever think of any easy questions?


OK, the term “modern style of Class 15 bobbin case” can cover a whole range of bobbin cases.


To give you the Reader’s Digest answers to your question:


Straight stitch machines, be them Singer or Japanese, tend to have a narrow needle opening, and be either of the 11-o’clock or 1-o’clock style, indicating that the shuttle race notch is a little left or a little right of straight up.


Zigzag machines, usually Japanese, but others too, tend to have a wider needle opening, and be either of the 11-o’clock or 1-o’clock style, indicating that the shuttle race notch is a little left or a little right of straight up.


The zz guys need more room to allow the needle to fritter about from side to side, whether from movement of the needlebar, or movement of the lower assembly.


Class 15 bobbins can be all different shapes (holes in the sides, no holes in the sides, 1 hole in the side, 2 holes in the side... (you get the idea), but they are all of the same general size dimensions for depth, diameter, and center hole.


Now, can someone else bail me out here???????


CD in Oklahoma

I totally understood that CD.

The reason I asked is that my 15-91 is missing the bobbin and the case. I have several for other machines so I found one that looked like what I needed and stuck it in there. It fits but the machine seemed to bind when turned by hand without the needle. I also have several styles of class 15 bobbins but I haven't tried any of those just yet. I need to make sure I have the right case before moving on to the bobbin part. The machine turns freely but with a slight drag due to the motor without the bobbin case in place.

I tried it with the bobbin and it still binds. I didn't want t force it and cause some horrible damage. The cases I have are 11 o'clock design.

The 15-91 bobbin case has the "finger" in the 1 o'clock position, so the 11 o'clock "finger" position case shouldn't even snap into place.

The only class 15 bobbins I use are the ones with a bunch of holes in the sides.

Here is a Singer 15
http://i31.photobucket.com/albums/c3...ps91d77859.jpg

And clone - Btw- that hole does not mean anything - just the way this one was made.

http://i31.photobucket.com/albums/c3...ps6f7da8af.jpg

you can put the wrong bobbin case in, but it doesn't work.

Here is the clone with the singer case

http://i31.photobucket.com/albums/c3...psa033ef00.jpg


Notice the notch the end of the "finger" hooks into, it's got one rather straight side and one slanted, that is the easiest way to tell which one you need, the slant side matches the angle of the finger.

BTW- the earlier 15's were the other direction - my 1914 one is 1 o'clock, as are all the 15-30's

Thanks for the picture it helps a lot. It also seems to show that I'm missing something. Theres a small piece on the right side that's missing on mine. I have the retainer thingy that holds the works together. I have the thin piece directly under it. I have the race but that little part under the thin thingy and to the right of the race is gone. At least I think it is, am I seeing things wrong? With the exception of the direction of the notch, mine looks like the clone in that it doesn't have that other piece showing.

In a quest to find what's missing I went to eBay and looked at complete assemblies. This is what I have and it says its for a Singer and complete.
http://www.ebay.com/itm/SINGER-SEWIN...item43bb3d6204

Anyone know what I'm seeing in Macybaby's picture?

All of that stuff in the auction is in Macybaby's first picture.

In the auction picture, the part at the upper left, which is the race, is upside down.

What is this part? This is what I thought I was missing but didn't see in the complete assembly.

That is the hook. It's in the bottom right of the auction photo.

My husband did up these pictures for me a while back - that is why they've got all the notes on them. I'm not good at that kind of stuff LOL!!

http://i31.photobucket.com/albums/c3...psa7e9b964.jpg



http://i31.photobucket.com/albums/c3...psf83ccc41.jpg

http://i31.photobucket.com/albums/c3...ps744fe367.jpg


http://i31.photobucket.com/albums/c3...ps9c28927d.jpg

The part you are indicating is part of the machine - so if that is missing/broke, then you need more than the shuttle assembly.

Oh, that part. Yeah, if you are missing that, you have problems.

No I have that part, just not quite as shiny. It looks like I have all of it but the bobbin case. I'm going to see of the local guy has one, if not I'll order it.

Those are wonderful pictures Cathy! You wouldn't happen to have 201 pictures like that would you? I've read it's trickier.

the 201 is a pain! Enough so I don't think I could get DH to take one apart to take pictures. He did these for me earlier this year when we were helping someone on another board figure out what was missing under her machine. She had no shuttle body - so the bobbin case kept falling out on her. Easy fix - then she realized her bobbin winder was gone. A good example of someone using a machine for a few parts, then "donating" what was left to Goodwill.

I'm quite sure Rain has something on his site (vssmb.blogspot.com) that deals with the 201's hook mechanism. Once you've taken it apart once, it's not that bad.

And clone - Btw- that hole does not mean anything - just the way this one was made.

Macybaby are you talking about the hole in the bobbin case finger??? If it is:

In Bernina machines there are times you need to thread that hole for a better tension.......don't know about your machine.

that case came with the machine - and it was a Japanese ZZ saved by a garbage man and offered for $35 on Craigslist - I picked up for a friend and shipped it to West Virginia.

On of the prettiest machines - almost hated to send it off!

http://i31.photobucket.com/albums/c3...psc5eaef51.jpg

There are nothing in the manual about a hole in the finger on the bobbin case, so I expect the previous owner bought a replacement at some point in time.

The hole in the finger of the bobbin case is added bobbin tension for button holes and some of the decorative stitches. My Berninas have it too..