{"id":4586,"date":"2026-10-25T17:03:25","date_gmt":"2026-10-25T09:03:25","guid":{"rendered":"https:\/\/www.carbon-fiber-corp.com\/carbon-fiber-tube-shouldered-fitting-end-contact\/"},"modified":"2026-10-25T17:03:25","modified_gmt":"2026-10-25T09:03:25","slug":"carbon-fiber-tube-shouldered-fitting-end-contact","status":"publish","type":"post","link":"https:\/\/www.carbon-fiber-corp.com\/zh\/carbon-fiber-tube-shouldered-fitting-end-contact\/","title":{"rendered":"Shouldered Fittings on Carbon Fiber Tubes: Define the End Contact"},"content":{"rendered":"<style>.ly-note{max-width:880px;margin:0 auto;color:#26333c;line-height:1.85;font-size:17px}.ly-note h2{font-size:1.5rem;line-height:1.35;margin:1.8em 0 .6em}.ly-note p{margin:0 0 1.2em}.ly-note .intro{font-size:1.08em}.ly-note figure{margin:2em 0}.ly-note figure img{display:block;width:100%;height:auto}.ly-note figcaption{font-size:.88rem;color:#60727d;line-height:1.55;margin-top:10px}.ly-note ul{padding-left:1.4em}.ly-note li{margin:.45em 0}.ly-note a{color:#8e1e34;text-decoration:underline;text-underline-offset:3px}.ly-note .notes{padding:20px 28px;background:#f0f4f5;border-left:3px solid #296c85;margin:2em 0}.ly-note .notes h2{font-size:1.1rem;margin:0 0 .8em}.ly-note .reading{border-top:1px solid #d9e1e5;margin-top:2em;padding-top:1.1em}.single-post .entry-title{font-size:clamp(1.8rem,3.8vw,2.6rem);line-height:1.25}.single-post .post-thumb-img-content img{width:100%;height:auto;max-height:360px;object-fit:contain;background:#fbfcfc}@media(max-width:600px){.ly-note{font-size:16px}.ly-note h2{font-size:1.3rem}.ly-note .notes{padding:17px}}<\/style><div class=\"ly-note\"><p class=\"intro\">A shouldered fitting can contact the end of a carbon fiber tube while another part of the fitting engages inside or outside it. Define that end contact separately from the engagement length. The visible shoulder does not establish how the complete joint carries its loads.<\/p><p>Provide a section of the fitting and tube at the intended assembled position. Identify the tube-end condition and the faces intended to meet. If a gap is required, show it explicitly. An insertion mark alone does not explain whether the shoulder is seated or deliberately clear.<\/p><h2>Keep contact and retention separate<\/h2><p>A shoulder can establish an axial position, while an adhesive, clamp or other feature provides retention. Describe the proposed arrangement rather than assigning every function to the shoulder. Review any local tube-end loading against the actual construction and hardware through the responsible engineering process.<\/p><h2>Use the represented fitting for the sample<\/h2><p>Keep the fitting reference and revision with the assembled sample. Record the seated position and any agreed dimensional or functional check. If the supplier changes the shoulder geometry or the tube-end preparation, review the affected interface instead of carrying over an unrelated fit approval. The handover should make clear which parts, joining operations and final assembly checks are included in the quotation.<\/p><figure><a href=\"https:\/\/www.carbon-fiber-corp.com\/wp-content\/uploads\/2026\/10\/ly-geo-20261025-12-shoulder-2.webp\" aria-label=\"Open the full-size diagram\"><img src=\"https:\/\/www.carbon-fiber-corp.com\/wp-content\/uploads\/2026\/10\/ly-geo-20261025-12-shoulder-2.webp\" alt=\"A seated contact and a specified clear gap are different assembled conditions.\" width=\"1600\" height=\"1000\" loading=\"lazy\" decoding=\"async\"><\/a><figcaption>A seated contact and a specified clear gap are different assembled conditions. <a href=\"https:\/\/www.carbon-fiber-corp.com\/wp-content\/uploads\/2026\/10\/ly-geo-20261025-12-shoulder-2.webp\">View full size<\/a>.<\/figcaption><\/figure><p><strong>For the project review:<\/strong> fitting section and controlled reference; intended contact faces or gap; engagement and retention arrangement; tube-end condition and sample check.<\/p><div class=\"reading\"><p>Related: <a href=\"https:\/\/www.carbon-fiber-corp.com\/carbon-fiber-tube-joints-preparing-the-interface-for-supplier-review\/\">Carbon Fiber Tube Joints: Preparing the Interface for Supplier Review<\/a> \u00b7 <a href=\"https:\/\/www.carbon-fiber-corp.com\/solid-carbon-fiber-rod-hollow-tube-section\/\">Solid Carbon Fiber Rod or Hollow Tube? Show the Cross-Section<\/a>.<\/p><p><a href=\"https:\/\/www.carbon-fiber-corp.com\/contact\/\">Discuss your component with Litian Yunde<\/a> \u00b7 <a href=\"https:\/\/www.carbon-fiber-corp.com\/carbon-fiber-guides\/\">Browse the component guides<\/a><\/p><\/div><\/div><script type=\"application\/ld+json\" class=\"ly-article-schema\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BlogPosting\", \"@id\": \"https:\/\/www.carbon-fiber-corp.com\/carbon-fiber-tube-shouldered-fitting-end-contact\/#article\", \"headline\": \"Shouldered Fittings on Carbon Fiber Tubes: Define the End Contact\", \"description\": \"Define tube-end contact, engagement and retention for a shouldered carbon fiber fitting. Keep the seated position and exact hardware with the sample record.\", \"image\": [\"https:\/\/www.carbon-fiber-corp.com\/wp-content\/uploads\/2026\/10\/ly-geo-20261025-12-shoulder-1.webp\", \"https:\/\/www.carbon-fiber-corp.com\/wp-content\/uploads\/2026\/10\/ly-geo-20261025-12-shoulder-2.webp\"], \"datePublished\": \"2026-10-25T09:03:25Z\", \"mainEntityOfPage\": {\"@type\": \"WebPage\", \"@id\": \"https:\/\/www.carbon-fiber-corp.com\/carbon-fiber-tube-shouldered-fitting-end-contact\/\"}, \"author\": {\"@type\": \"Organization\", \"name\": \"Litian Yunde\", \"url\": \"https:\/\/www.carbon-fiber-corp.com\/about\/\"}, \"publisher\": {\"@type\": \"Organization\", \"name\": \"Dongguan Litian Yunde New Materials Technology Co., Ltd.\", \"url\": \"https:\/\/www.carbon-fiber-corp.com\/\"}, \"inLanguage\": \"en\", \"articleSection\": \"Tubes & Interfaces\"}<\/script>","protected":false},"excerpt":{"rendered":"<p>A shouldered fitting can contact the end of a carbon fiber tube while another part of the fitting engages inside or outside it. Define that end contact separately from the engagement length. The visible shoulder does not establish how the complete joint carries its loads.<\/p>","protected":false},"author":1,"featured_media":4551,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"Carbon Fiber Tube Shoulder Fitting End Contacts | Litian Yunde","_seopress_titles_desc":"Define tube-end contact, engagement and retention for a shouldered carbon fiber fitting. 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Define that end contact separately from the engagement length. The visible shoulder does not establish how the complete joint carries its loads.","_links":{"self":[{"href":"https:\/\/www.carbon-fiber-corp.com\/zh\/wp-json\/wp\/v2\/posts\/4586","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.carbon-fiber-corp.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.carbon-fiber-corp.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.carbon-fiber-corp.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.carbon-fiber-corp.com\/zh\/wp-json\/wp\/v2\/comments?post=4586"}],"version-history":[{"count":0,"href":"https:\/\/www.carbon-fiber-corp.com\/zh\/wp-json\/wp\/v2\/posts\/4586\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.carbon-fiber-corp.com\/zh\/wp-json\/wp\/v2\/media\/4551"}],"wp:attachment":[{"href":"https:\/\/www.carbon-fiber-corp.com\/zh\/wp-json\/wp\/v2\/media?parent=4586"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.carbon-fiber-corp.com\/zh\/wp-json\/wp\/v2\/categories?post=4586"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.carbon-fiber-corp.com\/zh\/wp-json\/wp\/v2\/tags?post=4586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}