Universal Aluminium Bobbin (Part #272152 / 146290001) for Singer 20U
Optimize your machine's performance with the Universal Aluminium Bobbin (Part #272152). Also identified by part number 146290001, these premium aluminum bobbins are specifically engineered for the Singer 20U series and its various industrial clones.

Aluminum bobbins are the preferred choice for high-speed professional sewing and embroidery because they are significantly lighter than traditional steel bobbins. This lower mass reduces the inertia during rapid starts and stops, leading to superior tension control and fewer thread breaks.

Key Features & Benefits
Authentic OEM Quality: Manufactured to the original factory specifications (272152 / 146290001) to ensure a perfect fit in the 20U rotary hook and bobbin case.

Lightweight Performance: The aluminum construction allows for faster acceleration and deceleration of the bobbin, which is critical for consistent tension during complex zig-zag and embroidery patterns.

Precision Machined: Every bobbin is machined to exacting tolerances, featuring smooth edges that prevent thread snagging and fraying, even when using delicate specialty threads.

Heat Dissipation: Aluminum naturally dissipates heat more effectively than steel or plastic, helping to keep your thread and shuttle hook cool during long, high-speed production runs.

Universal Compatibility: Known as a standard "L-style" bobbin, this part fits the entire Singer 20U range as well as many other industrial zig-zag and straight-stitch machines.

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.