Tension Spring is an important thread tension control component used in industrial sewing machines, especially Juki single-needle lockstitch machines. It helps maintain stable upper thread tension during high-speed sewing operations.

• Take-Up Spring
• Check Spring
• Thread Tension Spring

It works by controlling thread movement while the needle enters and exits the fabric, helping produce smooth and balanced stitches.

This part is commonly used in:

• Juki DDL series
• Industrial flat sewing machines
• Single needle lockstitch machines

• Maintains proper thread tension
• Prevents loose stitches
• Helps reduce thread looping
• Supports smooth stitch formation
• Improves sewing consistency at high speed

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.