How much tension should a bobbin have?

How much tension should a bobbin have?

Proper bobbin tension is essential to good embroidery. If tension is too tight, unwanted bobbin thread may begin to show on top of your garment and you may begin to experience frequent thread breaks which wastes time and money. Bobbin tensions should be 18 to 22 grams (up to 25 grams when embroidering caps).

Why does my sewing machine keep jamming underneath?

The reason for the problem could be lint, dust and other debris getting stuck in their mechanism. The solution: Stop work, lift the presser foot and thoroughly clean the fee dogs from any debris. Also, make sure that they are lifted up in a raised position allowing for a proper grip of the fabric.

What is the diameter of a singer bobbin?

SINGER® Class 66 Metal Bobbins Bobbin Height: 7/16” (11mm) Bobbin Diameter: 13/16” (21mm) For use with specific models only. Curved top and curved bottom. Do not substitute in machines that use Class 66 transparent bobbins. BUY NOW SureFit™ Bobbins Bobbin Height: ⅜” (10mm) / Bobbin Diameter (widest): ¾” (20mm)

What is the size of a Class 66 bobbin?

SINGER® Class 66 Metal Bobbins Bobbin Height: 7/16” (11mm) Bobbin Diameter: 13/16” (21mm) For use with specific models only Curved top and curved bottom

What is the size of a singer class 15 J bobbin?

SINGER® Class 15J Bobbin Height: 6/16” (11mm) / Bobbin Diameter: ¾” (20mm) Top & bottom very slightly curved. Transparent with very slightly blue color tint. Do not substitute with Class 15 metal or transparent bobbins. BUY NOW SINGER® Class 15 Metal Bobbins Bobbin Height: 7/16” (12mm) / Bobbin Diameter: 13/16” (21mm) Top and bottom are flat

What is the size of a metal bobbin?

SINGER® Class 15 Metal Bobbins Bobbin Height: 7/16” (12mm) / Bobbin Diameter: 13/16” (21mm) Top and bottom are flat Metal bobbins must be used in models that come with this style