{"product_id":"ckpsms-large-m-style-bobbin-case-set-for-walking-foot-machines-4pcs-with-anti-spin-spring-no-backlash-fit","title":"ckpsms Large M-Style Bobbin Case Set for Walking-Foot Machines — 4PCS with Anti-Spin Spring, No-Backlash Fit","description":"\u003cp\u003e\u003cstrong\u003eThese four CKPSMS large \"M\" style bobbin cases are drop-in replacements designed to stop unwanted bobbin spin and improve stitch stability for heavy-duty walking-foot and longarm sewing machines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eMade as direct-fit, no-backlash bobbin cases, this 4-piece set replaces worn or damaged units on a wide range of industrial and quilting machines from Consew, Juki, Singer and others. Each case integrates an anti-spin spring so the bobbin remains secure when the machine stops, helping prevent thread loops from escaping the case and reducing thread breaks during restart. The metal finish and factory tolerances match the dimensions used by many commercial walking-foot and quilting heads.\u003c\/p\u003e\n\n\u003ch3\u003eWhich machines will these bobbin cases fit?\u003c\/h3\u003e\n\u003cp\u003eThese CKPSMS bobbin cases are engineered to match the 'M' style large bobbin dimensions used by several popular industrial and quilting models.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConsew models: 199RB, 199RBL, 204RB, 205RB, 206RB, 208RB, 306RB.\u003c\/li\u003e\n  \u003cli\u003eJuki models: DNU-1541 series, DNU-241H series, DNU-261H and several DSC\/DLN variants.\u003c\/li\u003e\n  \u003cli\u003eAlso compatible with Singer 531B, Taking TK-8BL and multiple Seiko STH variants.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the anti-spin (no-backlash) spring improve sewing performance?\u003c\/h3\u003e\n\u003cp\u003eThe built-in anti-spin spring prevents the bobbin from turning freely when the machine pauses, which reduces the risk of thread loops slipping out of the case and causing sudden thread breaks once sewing resumes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMakes restarts smoother by keeping thread tension consistent inside the case.\u003c\/li\u003e\n  \u003cli\u003eReduces skipped stitches and thread snapping that result from bobbin spin.\u003c\/li\u003e\n  \u003cli\u003eHelps protect delicate stitches and expensive threads during stop-start sewing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the benefits of buying this 4PCS set for professional sewing?\u003c\/h3\u003e\n\u003cp\u003eBuying a set of four replacement bobbin cases is cost-effective for shops and home sewists who run multiple machines or want ready spares for continuous production.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaintains consistent stitching across several machines without downtime.\u003c\/li\u003e\n  \u003cli\u003eUseful for long projects and quilting where frequent bobbin changes occur.\u003c\/li\u003e\n  \u003cli\u003eSpare parts on-hand minimize repair delays and lost production time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install and maintain these bobbin cases?\u003c\/h3\u003e\n\u003cp\u003eInstallation follows the same steps as the factory bobbin case: drop into the hook area, align the latch, and ensure the anti-spin spring seats properly. Regular cleaning and light lubrication of the hook race will extend service life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eClean lint and dust from the hook area before installing the new case.\u003c\/li\u003e\n  \u003cli\u003eVerify tension and proper seating by running a short stitch test on scrap fabric.\u003c\/li\u003e\n  \u003cli\u003eInspect the spring and case for wear; replace the set if any spring loses tension.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Professional sew shops, longarm quilters, and serious home hobbyists who use walking-foot or industrial machines will benefit most. If you run Consew, Juki, Singer, Seiko or compatible equipment and want reliable replacement bobbin cases that prevent bobbin spin, this four-piece CKPSMS set keeps machines running with fewer thread breaks and less downtime.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these bobbin cases compatible with Juki DNU-1541?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, they fit Juki DNU-1541 series models and several related DNU\/DLN\/DSC variants.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these include the anti-spin spring already installed?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Each bobbin case comes with the no-backlash anti-spin spring built into the assembly.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"ckpsms","offers":[{"title":"Default Title","offer_id":55250185814353,"sku":"B078W2H9ZZ","price":30.39,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/ckpsms-large-m-bobbin-case-front-view.jpg?v=1791638006","url":"https:\/\/craftiche.co.uk\/products\/ckpsms-large-m-style-bobbin-case-set-for-walking-foot-machines-4pcs-with-anti-spin-spring-no-backlash-fit","provider":"Craftiche","version":"1.0","type":"link"}