"M" size bobbins.

[toxo]

I've been searching for bobbins for my 341 clone. I thought my bobbins were "M" size. All the bobbins I can find for the 341, Techsew 2750 etc have "M" size bobbins that measure approx 25mm x 11mm. My bobbins measure 28mm x 11mm. Clearly my machine has a larger hook than "Normal" but is it the only one? Not complaining mind, loving the capacity and I ordered 10 spares when I bought the machine but I'm running out now and would like to know where to get some more.

[1hp]

https://www.thethreadexchange.com/miva/merchant.mvc?Screen=CTGY&Store_Code=TTE&Category_Code=sewing-machine-bobbin-style-info

some bobbin info

[DieselTech]

My "U" style bobbins are 28mm by 12mm if that helps any. That is on my cobra class 26. 

They are actually 27.95mm by 11.75mm to be exact.

Edited November 5 by DieselTech

[DieselTech]

I have seen 2 different listing for "M" bobbin size. 25mm by 11mm  I also seen them listed as 27mm by 11mm 

[toxo]

Thanks for the effort guys. @1hp Link doesn't have any machines that I'm looking at.

@DieselTech As said, my bobbins are 28x11. Confusing!

Have asked my China lady, they make the machines but can do the stuff that goes with em. The time difference is a problem.

[toxo]

Have just bought some that measure 28x11.4. I think they'll fit else I'll sand em down. Might drill some more holes cos they only have one,

[Constabulary]

same as for the Juki 563 and so forth https://www.ebay.de/itm/222535571262 as it seems

Edited November 6 by Constabulary

[toxo]

10 hours ago, Constabulary said:

same as for the Juki 563 and so forth https://www.ebay.de/itm/222535571262 as it seems

Those are 11.7 Folker.

I thought I could get away with 11.4. But only one hole.

20PCS #282768 ALUMINUM BOBBINS fit for SINGER 211A 411U Walking Foot Machine | eBay

[chisel]

The Juki LU-563 bobbins I have measure 27.9 x 10.9. Part number B-9117-563-000

U bobbins I have for a Consew 255 or 339 e.g. are larger: 28.9 x 12.3

 

 

 

[toxo]

15 minutes ago, chisel said:

The Juki LU-563 bobbins I have measure 27.9 x 10.9. Part number B-9117-563-000

U bobbins I have for a Consew 255 or 339 e.g. are larger: 28.9 x 12.3

 

 

 

Same as the ones @Constabulary linked to above. Here's your part number. Are you saying that you've measured them and the actual height is 10.9mm?

CKPSMS Brand - #B9117-563-000 Large Steel BOBBINS Compatible with JUKI LU 563 1508 1510 1560 1565 Singer 211U G Walking Foot and Double Needle Machines (50PCS) : Amazon.co.uk: Home & Kitchen

[chisel]

18 hours ago, toxo said:

Same as the ones @Constabulary linked to above. Here's your part number. Are you saying that you've measured them and the actual height is 10.9mm?

CKPSMS Brand - #B9117-563-000 Large Steel BOBBINS Compatible with JUKI LU 563 1508 1510 1560 1565 Singer 211U G Walking Foot and Double Needle Machines (50PCS) : Amazon.co.uk: Home & Kitchen

Sorry, my mistake. I had the diameter correct but the B-9117-563-000 bobbin thickness is 11.7...I need to buy a digital caliper or new reading glasses. I have black bobbins from 2015 and new chrome ones purchased earlier this year and there are no dimensional differences between them.

Edited November 9 by chisel

[toxo]

6 hours ago, chisel said:

Sorry, my mistake. I had the diameter correct but the B-9117-563-000 bobbin thickness is 11.7...I need to buy a digital caliper or new reading glasses. I have black bobbins from 2015 and new chrome ones purchased earlier this year and there are no dimensional differences between them.

No worries. Just hoping the 11.4 will fit. 

[nylonRigging]

I got to say, this forum never fails to offer info to pick-up on. I never really paid much attention to M-Bobbin sizing. of my machines running 3 of them use daily are M-bobbin . ( 2 ) consew ( 1 ) juki  . I just buy the same M-bobbins that I use in All them. They all seem to work satisfactory sew great, but when I get some time I will put a Mic. to some of them and check size variation.

.

[toxo]

13 minutes ago, nylonRigging said:

I got to say, this forum never fails to offer info to pick-up on. I never really paid much attention to M-Bobbin sizing. of my machines running 3 of them use daily are M-bobbin . ( 2 ) consew ( 1 ) juki  . I just buy the same M-bobbins that I use in All them. They all seem to work satisfactory sew great, but when I get some time I will put a Mic. to some of them and check size variation.

.

Never had a big bobbin before. Just going on the size of the ones that came in the machine. There's  a bit of movement when I press down  so I'm thinking the extra .4 will be OK.