Genuine 52237NBL (BCDB1NBL6) Universal Bobbin Case is a high-quality replacement part designed to fit all types of flat sewing machines, including Brother, Singer, and Juki models.

Equipped with the NBL406 spring, this bobbin case ensures smooth and consistent thread delivery for even, professional-quality stitching. Manufactured by Towa in Japan, it offers superior durability and reliable performance, making it an ideal choice for maintenance or repairs in industrial and domestic sewing applications.