Menu
Shop By Brand (A-J)
Shop By Brand (K-Z)
Maintenance Supplies
Shop Manuals By Brands (A-J)
Shop Manuals By Brands (K-Z)
Sewing Supplies
Embroidery Supplies
Quilting Supplies
Storage
Shop By Brand (A-J)
Shop By Brand (K-J)
No account yet? Create Account
FITMENT GUIDE
Most modern low-shank Singer sewing machines use a Class 15 bobbin. Many vintage and older low-shank Singer models use a Class 66 bobbin instead. The two are not interchangeable. Compare your current bobbin against the classes below, or check your machine's manual, before you order.
Singer bobbins split into two classes. Here is how to tell them apart.
Most modern low-shank Singer machines use a Class 15 bobbin. Many vintage and older low-shank Singer models use a Class 66 bobbin instead. Compare your current bobbin against the two classes above, or check your machine's manual, before you order.
Both are the same Class 15 shape and size. The metal version uses a machined metal bobbin instead of clear plastic. Either one fits the same machines. The choice is about material preference, not compatibility.
No. The two classes are not interchangeable. Using the wrong bobbin class can cause thread tension problems, skipped stitches, or jamming. Match the class your machine calls for every time.
Class 15 and Class 66 Singer bobbins, plastic or metal.
Class 15 · Plastic · 81348
Clear plastic bobbins built for Class 15 Singer machines. The transparent body shows thread levels at a glance, so you can color-code threads and switch projects fast. Snag-free edges and consistent tension keep stitches even. The plastic resists warping and cracking with regular use.
Also available on Amazon
Class 66 · Plastic · 172336
Class 66 bobbins for older and vintage low-shank Singer machines that use this size instead of Class 15. Check your machine's manual, or compare against your current bobbin, before ordering.
Also available on Amazon
Class 15 · Metal · 2518T
The metal version of the Class 15 bobbin. Same shape and size as the plastic version above, so it fits the same Class 15 machines. Choose metal or plastic based on your own preference.
Also available on Amazon
