Class 15 Metal Bobbin Case | JO1313ZW / 647515006

Replace a worn or missing bobbin case in a compatible front-loading Class 15 domestic machine. The metal case holds the bobbin inside the oscillating-hook assembly and uses its tension spring to regulate lower-thread tension.

A stable bobbin case can correct looping beneath the fabric, erratic lower tension and thread snags caused by a bent or worn case. This non-branded replacement is listed for select Baby Lock, Bernina, Bernette, Brother, Janome, Kenmore, Necchi, Pfaff, Riccar, Singer, White and other machines.

Match your machine model and the case shape before ordering. This is a front-load Class 15 case with a latch finger and no thread hole in that finger; it is not a top-drop-in bobbin holder or a complete hook and shuttle assembly.

Cross-reference: Janome #647515006.