{"product_id":"premium-replacement-bobbin-case-52237-sc31-for-singer-491d-591-601d-sewing-machine","title":"Bobbin Case 52237=SC31 for Singer 491D, 591, 601D Sewing Machine","description":"\u003cp\u003eBobbin Case #52237 (SC31)\u003cbr\u003e\nProfessional-Grade Tension Control for Singer Industrial Sewing Machines\u003c\/p\u003e\n\n\u003cp\u003eEnsure 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.\u003c\/p\u003e\n\n\u003cp\u003eThis part is a direct equivalent for both part numbers 52237 and SC31, making it a versatile essential for your repair kit.\u003c\/p\u003e\n\n\u003cp\u003eCompatible Singer Models:\u003cbr\u003e\nThis bobbin case is precision-engineered for the following Singer Industrial Single Needle machines:\u003c\/p\u003e\n\n\u003cp\u003eSinger 491D\u003c\/p\u003e\n\n\u003cp\u003eSinger 591\u003c\/p\u003e\n\n\u003cp\u003eSinger 601D\u003c\/p\u003e\n\n\u003cp\u003eKey Features:\u003cbr\u003e\nDual Part Number Compatibility: Fully compatible with original part numbers 52237 and SC31.\u003c\/p\u003e\n\n\u003cp\u003eAnti-Spin Spring: Equipped with a built-in tension spring to prevent the bobbin from over-spinning and causing \"backlash\" when the machine stops suddenly.\u003c\/p\u003e\n\n\u003cp\u003ePrecision Tension Adjustment: Features a micro-adjustable screw that allows you to fine-tune your bobbin thread tension for different thread weights and fabric types.\u003c\/p\u003e\n\n\u003cp\u003eHardened Steel Finish: The high-polish surface ensures smooth thread delivery and resists the nicks and scratches that cause thread breakage.\u003c\/p\u003e\n\n\u003cp\u003eHigh-Speed Reliability: Built to handle the rigorous RPMs of the Singer 591 and 601D series without overheating or warping.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48307149996281,"sku":"52237","price":2.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850","url":"https:\/\/empenzoamericas.com\/products\/premium-replacement-bobbin-case-52237-sc31-for-singer-491d-591-601d-sewing-machine","provider":"Empenzo Americas Corp.","version":"1.0","type":"link"}