I have a riccar 9900 electric sewing machine. I was told the machine used class 15 bobbins. When I bought plastic (could not find metal) class 15s from Joanns they did not fit my machine. what size bobbin does a riccar 9900 actually use?

Did you get Class 66 bobbins? See https://www.sewingpartsonline.com/singer-4522-sewing-machine-parts.aspx?index=19 . Singer sewing machines use a variety of different bobbins.

I hope this helps.

Cindy Wells
(I have an older Singer Touch N' Sew. Those bobbins are easy to spot. Newer machines can use Class 15, Class 15J or Class 66 bobbins, https://www.singer.com/sewing-resources/complete-bobbin-guide . Some machines can only use either the plastic or metal bobbins of a particular size. Others can use either metal or plastic bobbins.)

The bobbin for the BabyLock Espree EM1 and Espree II EM2 is the plastic Brother SA155 or 136492-001. You can also use the metal Brother 125701-001. A source for the plastic bobbins is https://www.sewingpartsonline.com/bobbins-babylock-bernina-brother-riccar-136492-001.aspx . There are other reference numbers listed at the bottom of the page. You can use any regular sewing machine needle appropriate for the fabric and thread. Singer 2020, Schmetz 80x12, 90x14 or Janome 15x1 needles are among the compatible needles. See https://www.sewingpartsonline.com/babylock-em1-sewing-machine-parts.aspx?sort.ss_cat_sort=desc&index=140 for some of these needles.

I hope this helps.

Cindy Wells

Here's the manual for your machine. Download and keep it because you will probably be needing more in the future.


RICCAR 9900 Instruction Manual

http://www.singeroriginalvintageproducts.com/Pages/SINGER227MSEWINGMACHINEWITHDROPFEEDDOGGREATCOLLECTOR.aspx


SINGER ORIGINAL VINTAGE PRODUCTS SINGER FEATHERWEIGHT 221

There may be a sensor "eye" for the bobbin that is dirty.

Hi betroy,
I would suggest you stay with the plastic bobbins. but if your still
in doubt contact the singer website & ask them. me myself I would
stay with the plactic bobbins, & I've been sewing for over 30 years.
you have a very nice sewing machine.

You need a bobbin like this:

You can puchase them from this link
http://www.sewingpartsonline.com/bobbins-janome-kenmore-elna-102261103.aspx

Janome have one standard plastic bobbin that fits almost all their models except
1600P, 1600P-DB, 1600P-DBX and MB4.
So if you see packets of plastic "Janome" bobbins for sale they will be the right ones.

The Featherweight II 117 uses the Class 15 bobbin. A 4-pack of the Dritz equivalent of the bobbin is available from Amazon here: http://www.amazon.com/Dritz-Plastic-Class-15-Bobbins/dp/B000Y3D1NG . Singer has a 10-pack of the bobbins here: http://www.singerco.com/accessories/detail/2075/class-15-bobbins-10-pack . You can buy a manual from Singer, as well. (See their Instruction Manual page from the Customer Support Link then enter 117 in the Search box.)

I hope this helps.

Cindy Wells

I check at sewingpartsonline.com they have both models numbers at the top---it's shows they have bobbins

click on the riccar parts & look for your model number it's toward they middle of the page just click on the number R551 or R552

I had been using class 66 but have had bobbin problems for 6 years. I was told a week ago that I should be using class 15 (but still having the same problems). Not sure if that helps or not.