Genuine The 9076NBL Bobbin Case is a world-class industrial component manufactured by Towa (Japan), the industry leader in tension-controlled bobbin systems. Designed specifically for the Pfaff 463, 481, 483, 563, and 591 series, the "NBL" designation stands for No-Back-Lash.

This case features a built-in anti-backlash spring (brake spring) that exerts a constant, light pressure on the bobbin. This prevents the bobbin from spinning freely and "overrunning" when the machine stops suddenly or when the automatic thread trimmer activates, eliminating the primary cause of bird-nesting and tangled thread at the start of a seam.

Key Features & Performance
Towa Japanese Engineering: Renowned for the highest manufacturing tolerances in the industry, ensuring the case fits perfectly into the hook race without vibration.

Integrated NBL Spring: The high-tempered steel brake spring inside the case ensures the bobbin stops the millisecond the machine stops, providing a clean thread tail for the next stitch.