Bobbin Case

A bobbin case is a component in a sewing machine that holds the bobbin, which supplies the lower thread for stitching. It fits into the machine and helps control the tension and delivery of the bobbin thread, ensuring even, secure stitches. The bobbin case also interacts with the needle thread to form a proper lockstitch. Proper placement and maintenance of the bobbin case are essential for smooth sewing and consistent stitch quality.