This Listing is for 1 BRAND NEW Highest Quality LARGE BOBBIN CASE that fits
Artisan: 618, 797AB
Brother : B740, B741, B741-3, B745-5, B745-7, B746-5, B746-7, B747-5, B747-7, B748, B748-305, B748-307, B791, B792, B797, B797-5, B798, B798-300
Chandler : DY-337, DY-349
Consew : 120, 145, 146RB
Feiyue : FY-5318
Fomax : KDD-5570HB
Golden Wheel : CS-350L, CS-350L-T, CSZ-3211
Janome : DB-J706S
Juki : DDL-201, DDL-201H, DDL-201S
Mitsubishi : CU-865-22, CU-865-22-FP, DB-120-1, -2, DB-127, DB-130, DB-130-22, DB-130E-22, DB-130G-22, DB-132G-22, DB-325-22, DX-370-20, DX-377, DY-330, DY-337, DY-339, DY-340, DY-349
Nakajima : 171L, 175L-1, 175L-2, 178L, 178L-2, 178L-3, 180L, 180LY, 181LY, 280L, 580L, 680L, DBU-70L, DSN-80L, DSN-178L, DSN-178L-3
Seiko : H-2BL, HC-2BL, HCL-2BL, LAH-1LC/N
Singer : 121C330AA, 121D330AA
Unicorn : DB2-H312, DY-H340, LS2-H540
Yakumo : 171L, 175L-1, 175L-2, 178L, 178L-2, 178L-3, 180L, 180LY, 181LY, 280L, 580L
Yamata : FY5318
And many more.
BRAND NEW 1" Diameter "M" Style Bobbin Case.
These are Bobbin Cases with NO BACK LASH spring inside.
A special anti-spin spring is built into the bobbin case assembly to prevent the bobbin from spinning when the machine is suddenly stopped. If the bobbin spins when the machine stops, there is a good chance that a single loop of thread will fall out of the bobbin case. This condition will cause the thread to snap as soon as the operator begins to sew.
No Back Lash Bobbin Cases are also required by sewing machine manufacturers for use in machines with bobbin thread undertrimmers. The anti-spin spring adds slight additional tension to the bobbin thread and stabilizes the bobbin thread just prior to actuation of the trimmer mechanism.