{"product_id":"genuine-aluminum-bobbin-9033a-for-pfaff-463-sewing-machine","title":"Genuine Aluminum Bobbin 9033A for Pfaff 463 Sewing Machine","description":"\u003cp\u003eGenuine The 9033A Aluminum Bobbin is a high-performance alternative to the standard steel bobbin, specifically engineered for the Pfaff 138, 234, 463, and 563 series. Manufactured by Seki (Japan), these bobbins are the preferred choice for high-speed industrial sewing where precision and weight reduction are critical for maintaining perfect thread tension.\u003c\/p\u003e\n\n\u003cp\u003eBy utilizing high-grade aircraft-grade aluminum, the 9033A provides a significant reduction in rotational mass. This allows the bobbin to start and stop more precisely than heavier steel versions, making it the ideal choice for machines equipped with automatic thread trimmers.\u003c\/p\u003e\n\n\u003cp\u003eKey Features \u0026amp; Performance\u003cbr\u003e\nSeki Japanese Engineering: Precision-turned from solid aluminum stock, ensuring absolute concentricity. This prevents \"wobble\" inside the bobbin case at speeds up to 6,000 RPM.\u003c\/p\u003e\n\n\u003cp\u003eUltra-Lightweight Design: The reduced mass significantly lowers \"rotational inertia.\" When the machine stops suddenly, the aluminum bobbin stops instantly, drastically reducing the risk of \"backlash\" (thread overrun) and bird-nesting.\u003c\/p\u003e","brand":"Seki","offers":[{"title":"Default Title","offer_id":48268032213241,"sku":"9033A","price":1.3,"currency_code":"USD","in_stock":true}],"url":"https:\/\/empenzoamericas.com\/products\/genuine-aluminum-bobbin-9033a-for-pfaff-463-sewing-machine","provider":"Empenzo Americas Corp.","version":"1.0","type":"link"}