{"product_id":"genuine-62740-bc3115-bobbin-case-for-singer-31-331k-sewing-machine","title":"62740=BC3115 Bobbin Case for Singer 31, 331K Sewing Machine","description":"\u003cp\u003eBobbin Case (Part #62740 \/ BC-31-15) – For Singer 31 \u0026amp; 331K\u003cbr\u003e\nEnsure the highest level of stitching precision with the Bobbin Case (Part #62740). Specifically engineered for the Singer 31 and 331K industrial series, this bobbin case is the gold standard for maintaining consistent lower thread tension. Often referred to by the industry code BC-31-15, this component is essential for heavy-duty sewing where stitch reliability is non-negotiable.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\nPrecision Tension Regulation: Equipped with a high-grade tension spring that provides smooth, uniform resistance, eliminating \"bird-nesting\" and puckered seams.\u003c\/p\u003e\n\n\u003cp\u003eOEM Specification Fit: As a genuine-spec component, it offers the exact dimensions required for a perfect seat within the shuttle race, reducing vibration and mechanical noise.\u003c\/p\u003e\n\n\u003cp\u003eHardened Steel Construction: Built to withstand the high-speed rotation and friction of industrial production without warping or losing tension accuracy.\u003c\/p\u003e\n\n\u003cp\u003eAnti-Backlash Design: Helps prevent the bobbin from over-spinning when the machine stops suddenly, ensuring your next stitch starts with perfect tension.\u003c\/p\u003e","brand":"Towa","offers":[{"title":"Default Title","offer_id":48309660254457,"sku":"62740","price":6.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Genuine_Parts.jpg?v=1776585822","url":"https:\/\/empenzoamericas.com\/products\/genuine-62740-bc3115-bobbin-case-for-singer-31-331k-sewing-machine","provider":"Empenzo Americas Corp.","version":"1.0","type":"link"}