{"title":"Bobbin Case Towa M Size 100100 Replacement Longarm","description":"\u003cp\u003eThe \u003cstrong\u003eBobbin Case Towa M Size 100100\u003c\/strong\u003e is a precision replacement bobbin case for M-size longarm quilting machines, calibrated to Towa’s exact tension specifications. The bobbin case is the single most critical tension component in a longarm machine — a properly calibrated case is essential for consistent stitch quality.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cdl\u003e\n\u003cdt\u003eWhy replace the bobbin case?\u003c\/dt\u003e\n\u003cdd\u003eBobbin cases wear over time — the tension spring weakens, the case can develop slight warps, and tension settings drift. A fresh factory-calibrated case restores consistent tension immediately. Many production studios keep a spare ready for instant swap if tension becomes erratic.\u003c\/dd\u003e\n\u003cdt\u003eHow do I know if my bobbin case needs replacement?\u003c\/dt\u003e\n\u003cdd\u003eSigns include erratic tension that resists adjustment, inconsistent stitch balance even with correct thread weights, or visible physical damage such as dents or a bent tension spring.\u003c\/dd\u003e\n\u003cdt\u003eIs 100100 the standard Towa M-size case number?\u003c\/dt\u003e\n\u003cdd\u003eYes — 100100 is Towa’s standard M-size replacement bobbin case designation. Verify compatibility with your specific machine model before ordering.\u003c\/dd\u003e\n\u003cdt\u003eHow long does a quality bobbin case last?\u003c\/dt\u003e\n\u003cdd\u003eWith proper care and regular tension verification, 1–3 years in production use. Replace when tension drift cannot be corrected by normal spring adjustment.\u003c\/dd\u003e\n\u003cdt\u003eShould I verify a new bobbin case with a tension gauge?\u003c\/dt\u003e\n\u003cdd\u003eYes — always check a new case with a Towa TM-3 tension gauge before loading a production quilt.\u003c\/dd\u003e\n\u003c\/dl\u003e","products":[],"url":"https:\/\/lindas.com\/collections\/bobbin-case-towa-m-size-100100-replacement-longarm-aeo.oembed","provider":"Linda's Electric Quilters ","version":"1.0","type":"link"}