{"product_id":"premium-replacement-bobbin-case-opener-9117634091-for-pfaff-1445-sewing-machine","title":"Bobbin Case Opener 9117634091 for Pfaff 1445 Sewing Machine","description":"\u003cp\u003eBobbin Case Opener (91-176 340-91) | For Pfaff 1445\u003cbr\u003e\nEnsure flawless thread passage and consistent stitch quality with the Bobbin Case Opener (Part #91-176 340-91). This precision-calibrated component is essential for the high-speed rotary hook system of the Pfaff 1445, specifically designed to handle the demands of heavy-duty industrial sewing.\u003c\/p\u003e\n\n\u003cp\u003eThe Secret to Smooth Thread Clearance\u003cbr\u003e\nThe bobbin case opener (also known as the \"finger\" or \"lever\") plays a critical role in the stitch cycle. Its job is to momentarily pull the bobbin case back, creating a tiny gap for the thread to pass freely around the hook assembly. If this part is worn or misaligned, you will experience thread shredding, tension spikes, and the dreaded \"bird-nesting\" under the fabric.\u003c\/p\u003e\n\n\u003cp\u003eKey Performance Features\u003cbr\u003e\nOptimized Timing Geometry: Engineered to move with microscopic precision, providing the exact clearance needed for heavy bonded nylon and polyester threads.\u003c\/p\u003e\n\n\u003cp\u003eAnti-Friction Finish: Features a micro-polished surface to ensure the thread glides over the opener without snagging or fraying.\u003c\/p\u003e\n\n\u003cp\u003eHigh-Tensile Durability: Manufactured from hardened industrial steel to resist the constant mechanical wear and vibration of a triple-feed machine.\u003c\/p\u003e\n\n\u003cp\u003eDirect Compatibility: A high-quality replacement for part 9117634091, matching the original factory specifications for the Pfaff 1400 series.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48298670096633,"sku":"176340","price":634.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Pfaff_Premium_Replacement_Parts.jpg?v=1775106965","url":"https:\/\/empenzoamericas.com\/products\/premium-replacement-bobbin-case-opener-9117634091-for-pfaff-1445-sewing-machine","provider":"Empenzo Americas Corp.","version":"1.0","type":"link"}