Bobbin Case 52237=SC31 for Singer 491D, 591, 601D Sewing Machine
Regular price
$2.69 USD
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Bobbin Case #52237 (SC31)
Professional-Grade Tension Control for Singer Industrial Sewing Machines
Ensure perfect stitch consistency with this Bobbin Case. Designed for high-speed industrial performance, this component provides the stable, even tension necessary for flawless lockstitch results.
This part is a direct equivalent for both part numbers 52237 and SC31, making it a versatile essential for your repair kit.
Compatible Singer Models:
This bobbin case is precision-engineered for the following Singer Industrial Single Needle machines:
Singer 491D
Singer 591
Singer 601D
Key Features:
Dual Part Number Compatibility: Fully compatible with original part numbers 52237 and SC31.
Anti-Spin Spring: Equipped with a built-in tension spring to prevent the bobbin from over-spinning and causing "backlash" when the machine stops suddenly.
Precision Tension Adjustment: Features a micro-adjustable screw that allows you to fine-tune your bobbin thread tension for different thread weights and fabric types.
Hardened Steel Finish: The high-polish surface ensures smooth thread delivery and resists the nicks and scratches that cause thread breakage.
High-Speed Reliability: Built to handle the rigorous RPMs of the Singer 591 and 601D series without overheating or warping.
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.