Anti-Spin Spring (9117643805) for Pfaff Sewing Machines
Maintain perfect tension and prevent bobbin overrun with this Anti-Spin Spring (Part #9117643805). This precision-engineered component sits inside the bobbin case to ensure the bobbin stops spinning the moment your machine stops, preventing tangled threads and "bird-nesting."

Essential for high-speed industrial sewing, this spring provides the consistent resistance needed for professional-grade stitch quality on heavy fabrics and technical textiles.

Key Features
Optimized Tension Control: Prevents the bobbin from spinning freely (backlash) during sudden stops or high-speed directional changes.

Direct Replacement: Manufactured to meet the exact specifications of part number 91-176 438-05.

High-Resilience Steel: Made from premium spring steel that maintains its shape and tension even under continuous industrial use.

Reduced Downtime: Eliminates common thread jams and tension inconsistencies, keeping your production line moving smoothly.

Orders are typically processed within 1–3 business days.

We ship from our Georgia, USA warehouse. If an item is temporarily unavailable in the U.S., we source it through our global supplier network and will notify you of the estimated lead time.

Free shipping is available on U.S. orders over $99.

Once your order ships, you will receive a tracking number by email.

For urgent orders or shipping questions, please contact us before placing your order.

We stand behind the quality of the products we sell.

• Genuine OEM parts are covered by the manufacturer's warranty where applicable.

• Aftermarket and generic parts are covered against manufacturing defects.

• If you receive a damaged, defective, or incorrect item, please contact us within 30 days of delivery.

• Warranty does not cover damage caused by improper installation, misuse, normal wear, or modifications.

If you have any questions, our support team is happy to help before or after your purchase.