Style A (Class 15) bobbins are sometimes called universal bobbins. They are used with home and small commercial machines for garment sewing and embroidery.
https://www.thethreadexchange.com/miva/graphics/00000001/style-a-class-15-bobbins-pennies.jpg Style A, also known as Class 15 bobbins are used with home and small commercial machines. Thinner thread sizes, like Tex 16 are normally used for embroidery. Nylon and polyester thread sizes 46 and 69 are normally used for heavier home sewing, and light to middleweight upholstery. Sizes 92 and higher normally require a commercial machine.
Diameter: 13/16" (0.815 In.), 2.070 cm (approximately that of a U.S. penny)
Height: 15/32" (0.465 In.), 1.181 cm (approximately 8 pennies stacked)
Information
Bobbin Buying Guide
Machine / Style Reference
Bobbin Style Dimensione (PDF)
Code Description Image Price Stock  
BOBA069BLAC144Ne Bobbins - Style A - Size 69 - Black (Eddington) - Nylon - Sideless - Box of 144 $52.60 13
BOBA069WHIT144Ne Bobbins - Style A - Size 69 - White (Eddington) - Nylon - Sideless - Box of 144 $52.60 1
BOBA092ODRA072P Bobbins - Style A - Size 92 - Olive Drab (A&E) - Polyester - Paper Sides - Box of 72 $10.30 268
BOBA092WHIT144Ne Bobbins - Style A - Size 92 - White (Eddington) - Nylon - Sideless - Box of 144 $52.60 2
BOBA207WHIT144Pa Bobbins - Style A - Size 207 - White (A&E) - Polyester - Sideless - Box of 144 $65.20 2