{"id":1704,"date":"2026-03-16T09:43:39","date_gmt":"2026-03-16T01:43:39","guid":{"rendered":"https:\/\/jeez-semicon.com\/?p=1704"},"modified":"2026-03-16T09:43:39","modified_gmt":"2026-03-16T01:43:39","slug":"hub-vs-hubless-dicing-blades-which-one-should-you-choose","status":"publish","type":"post","link":"https:\/\/jeez-semicon.com\/de\/blog\/hub-vs-hubless-dicing-blades-which-one-should-you-choose\/","title":{"rendered":"Hub vs Hubless Dicing Blades Which One Should You Choose"},"content":{"rendered":"<!-- ============================================================\n     CLUSTER A-02\n     H1 \/ URL slug: hub-vs-hubless-dicing-blades-which-one-should-you-choose\n     Full URL: https:\/\/jeez-semicon.com\/blog\/hub-vs-hubless-dicing-blades-which-one-should-you-choose\n     Pillar:   https:\/\/jeez-semicon.com\/blog\/diamond-dicing-blades\n     Company:  Jizhi Electronic Technology Co., Ltd.\n     Target:   ~1,500 words visible body text\n     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tr:nth-child(even){background:#fff;}\n.jz-table tbody td{padding:8px 13px;border-bottom:1px solid #d5e5f5;vertical-align:top;}\n.jz-tip{background:#fff8e1;border-left:4px solid #f59e0b;border-radius:0 6px 6px 0;padding:.9rem 1.2rem;margin:1.5rem 0;font-size:.94rem;}\n.jz-tip strong{color:#92400e;}\n.jz-warning{background:#fff1f2;border-left:4px solid #ef4444;border-radius:0 6px 6px 0;padding:.9rem 1.2rem;margin:1.5rem 0;font-size:.94rem;}\n.jz-warning strong{color:#991b1b;}\n.jz-compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem;margin:1.5rem 0 2rem;}\n.jz-compare-card{border-radius:9px;padding:1.3rem 1.5rem;}\n.jz-compare-card.hub{background:#f0f6ff;border:2px solid #0072ce;}\n.jz-compare-card.hubless{background:#f0fff4;border:2px solid #22c55e;}\n.jz-compare-card .cc-title{font-family:'Trebuchet MS',sans-serif;font-weight:700;font-size:1.05rem;margin-bottom:.7rem;}\n.jz-compare-card.hub .cc-title{color:#003d82;}\n.jz-compare-card.hubless .cc-title{color:#166534;}\n.jz-compare-card ul{margin:0;padding-left:1.2rem;font-size:.88rem;color:#374151;}\n.jz-compare-card li{margin-bottom:.35rem;}\n.jz-cta{background:linear-gradient(135deg,#003d82,#0072ce);border-radius:10px;padding:1.8rem 2rem;margin:2.5rem 0;text-align:center;color:#fff;}\n.jz-cta h3{color:#fff;margin:0 0 .5rem;font-size:1.25rem;font-family:'Trebuchet MS',sans-serif;}\n.jz-cta p{color:#d4e8ff;margin:0 0 1.1rem;font-size:.97rem;}\n.jz-cta a.jz-btn{display:inline-block;background:#fff;color:#003d82;font-family:'Trebuchet MS',sans-serif;font-weight:700;font-size:.93rem;padding:.65rem 1.6rem;border-radius:50px;text-decoration:none;margin:.25rem .35rem;}\n.jz-cta a.jz-btn:hover{background:#e0edff;}\n.jz-cta a.jz-btn.outline{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.7);}\n.jz-faq-item{border:1px solid #d0e4f5;border-radius:8px;margin-bottom:.85rem;overflow:hidden;}\n.jz-faq-q{background:#f0f7ff;padding:.85rem 1.15rem;font-family:'Trebuchet MS',sans-serif;font-weight:600;font-size:.95rem;color:#0d2b55;}\n.jz-faq-a{padding:.8rem 1.15rem;font-size:.92rem;color:#374151;line-height:1.7;}\n.jz-back{font-size:.88rem;margin:0 0 1.75rem;color:#6b7280;}\n.jz-back a{color:#0072ce;}\n@media(max-width:600px){\n  .jz-art h1{font-size:1.6rem;}\n  .jz-art h2{font-size:1.3rem;}\n  .jz-intro-box,.jz-cta{padding:1.2rem 1.1rem;}\n  .jz-compare-grid{grid-template-columns:1fr;}\n}\n<\/style>\n\n<div class=\"jz-art\">\n\n<p class=\"jz-back\">\u2190 Back to: <a href=\"https:\/\/jeez-semicon.com\/de\/blog\/diamond-dicing-blades\/\" target=\"_blank\">Diamond Dicing Blades: The Complete Guide<\/a><\/p>\n\n\n<div class=\"jz-intro-box\">\n  <p>When engineers first encounter the terms &#8220;hub type&#8221; and &#8220;hubless&#8221; dicing blades, they often assume it is a minor mechanical detail. In practice, the mounting configuration determines which dicing saws the blade is compatible with, affects spindle runout and blade stability, and directly influences whether installation takes seconds or minutes. This guide clarifies the structural difference, the performance implications, and exactly how to match blade type to your equipment and application.<\/p>\n<\/div>\n\n<nav class=\"jz-toc\">\n  <div class=\"jz-toc-title\">\ud83d\udccb Inhaltsverzeichnis<\/div>\n  <ol>\n    <li><a href=\"#what-is-hub\">What Is a Hub Type Dicing Blade?<\/a><\/li>\n    <li><a href=\"#what-is-hubless\">What Is a Hubless (Washer) Dicing Blade?<\/a><\/li>\n    <li><a href=\"#structural-comparison\">Structural and Performance Comparison<\/a><\/li>\n    <li><a href=\"#flange-compatibility\">Flange Compatibility and Saw Platform Matching<\/a><\/li>\n    <li><a href=\"#installation\">Installation Differences and Best Practices<\/a><\/li>\n    <li><a href=\"#which-to-choose\">Which Type Should You Choose?<\/a><\/li>\n    <li><a href=\"#faq\">H\u00e4ufig gestellte Fragen<\/a><\/li>\n  <\/ol>\n<\/nav>\n\n\n<h2 id=\"what-is-hub\">1. What Is a Hub Type Dicing Blade?<\/h2>\n\n<p>A hub type dicing blade \u2014 sometimes called a &#8220;type H&#8221; or &#8220;hubbed&#8221; blade \u2014 consists of a thin abrasive rim bonded to a rigid aluminium or aluminium alloy hub. The hub is a precision-machined disc with a central bore that mounts directly onto the spindle flange. Because the hub provides its own structural support, hub type blades require only a <strong>single outer flange<\/strong> (or in some configurations, no retaining flange at all) to clamp against the hub face during operation.<\/p>\n\n<p>The hub serves two critical functions beyond mechanical mounting: it pre-centres the abrasive rim with high concentricity relative to the bore, and it provides a rigid support structure that reduces lateral blade deflection during cutting. These properties make hub blades particularly well-suited to <strong>thin abrasive rims<\/strong> where the rim alone would lack sufficient stiffness to maintain cutting geometry under load.<\/p>\n\n<p>Hub blades are the dominant configuration for fine-pitch and electroformed blade applications. Most electroformed nickel bond blades \u2014 the thinnest dicing blades available \u2014 are manufactured in hub configuration because the aluminium hub provides the structural rigidity that the ultra-thin diamond rim cannot provide alone. This is discussed further in our <a href=\"https:\/\/jeez-semicon.com\/de\/blog\/types-of-dicing-blades-resin-vs-metal-vs-nickel-bond-explained\/\" target=\"_blank\">bond type comparison guide<\/a>.<\/p>\n\n\n<h2 id=\"what-is-hubless\">2. What Is a Hubless (Washer) Dicing Blade?<\/h2>\n\n<p>A hubless dicing blade \u2014 also called a &#8220;washer type&#8221; or &#8220;type W&#8221; blade \u2014 is an abrasive disc without any mounting hub. The blade is a flat annular ring (resembling a washer) with an abrasive cutting rim around its outer diameter and a plain central bore. It is mounted between two precision-matched flanges on the spindle, and the clamping force from the flanges provides both the mounting security and the structural support needed during cutting.<\/p>\n\n<p>Because the blade body itself is the entire abrasive mass without a hub, hubless blades can be manufactured to a <strong>wider range of thicknesses and diameters<\/strong> more economically than hub blades, and they are easier to manufacture in resin bond and metal bond formulations at standard thicknesses (above ~0.05 mm). Hubless blades are the standard configuration for the majority of resin bond and metal bond dicing applications across silicon, glass, ceramic, and substrate dicing.<\/p>\n\n\n<h2 id=\"structural-comparison\">3. Structural and Performance Comparison<\/h2>\n\n<div class=\"jz-compare-grid\">\n  <div class=\"jz-compare-card hub\">\n    <div class=\"cc-title\">Hub Type (Type H)<\/div>\n    <ul>\n      <li>Aluminium hub supports thin abrasive rim<\/li>\n      <li>Single or no outer flange required<\/li>\n      <li>Pre-centred \u2014 high bore-to-rim concentricity<\/li>\n      <li>Lower runout for thin rim blades<\/li>\n      <li>Standard for electroformed and ultra-thin blades<\/li>\n      <li>Faster blade change on compatible platforms<\/li>\n      <li>Higher cost per blade due to hub machining<\/li>\n    <\/ul>\n  <\/div>\n  <div class=\"jz-compare-card hubless\">\n    <div class=\"cc-title\">Hubless Type (Washer \/ Type W)<\/div>\n    <ul>\n      <li>Plain annular disc \u2014 no hub<\/li>\n      <li>Requires matching inner and outer flanges<\/li>\n      <li>Concentricity depends on flange precision<\/li>\n      <li>Wider thickness range economically available<\/li>\n      <li>Standard for resin and metal bond applications<\/li>\n      <li>Lower blade cost per unit<\/li>\n      <li>Flange maintenance critical for runout control<\/li>\n    <\/ul>\n  <\/div>\n<\/div>\n\n<div class=\"jz-table-wrap\">\n  <table class=\"jz-table\">\n    <thead>\n      <tr>\n        <th>Parameter<\/th>\n        <th>Hub Type<\/th>\n        <th>Hubless Type<\/th>\n      <\/tr>\n    <\/thead>\n    <tbody>\n      <tr>\n        <td>Structural support<\/td>\n        <td>Provided by aluminium hub<\/td>\n        <td>Provided by flanges<\/td>\n      <\/tr>\n      <tr>\n        <td>Runout (TIR)<\/td>\n        <td>Lower \u2014 hub pre-centres rim<\/td>\n        <td>Flange-dependent<\/td>\n      <\/tr>\n      <tr>\n        <td>Minimum blade thickness<\/td>\n        <td>Down to 0.015 mm (electroformed)<\/td>\n        <td>Typically 0.04 mm and above<\/td>\n      <\/tr>\n      <tr>\n        <td>Blade change speed<\/td>\n        <td>Faster (one-side mount)<\/td>\n        <td>Slightly slower (dual flange)<\/td>\n      <\/tr>\n      <tr>\n        <td>Cost per blade<\/td>\n        <td>Higher<\/td>\n        <td>Unter<\/td>\n      <\/tr>\n      <tr>\n        <td>Bond type compatibility<\/td>\n        <td>All types; dominant for electroformed<\/td>\n        <td>All types; dominant for resin\/metal bond<\/td>\n      <\/tr>\n      <tr>\n        <td>Saw platform examples<\/td>\n        <td>DISCO 2H50\/2H53 flanges; K&amp;S hub spindles<\/td>\n        <td>DISCO 2050\/2053 flanges; most universal spindles<\/td>\n      <\/tr>\n    <\/tbody>\n  <\/table>\n<\/div>\n\n\n<h2 id=\"flange-compatibility\">4. Flange Compatibility and Saw Platform Matching<\/h2>\n\n<p>The most critical practical consideration when selecting between hub and hubless blades is <strong>flange compatibility with your dicing saw<\/strong>. Hub blades and hubless blades use entirely different flange systems \u2014 they are not interchangeable on the same spindle without changing the flange set.<\/p>\n\n<p>On DISCO dicing saws \u2014 the most widely deployed platform globally \u2014 hub type blades use the &#8220;2H&#8221; flange series (e.g., 2H50-SD, 2H53-SD), which clamps against the flat face of the aluminium hub. Hubless blades use the standard &#8220;20&#8221; flange series (e.g., 2050-SD, 2053-SD), which sandwiches the blade between inner and outer flange faces. Attempting to mount a hub blade on a 20-series flange, or vice versa, will result in incorrect blade positioning, excessive runout, and potential spindle damage.<\/p>\n\n<div class=\"jz-warning\">\n  <strong>\u26a0\ufe0f Critical:<\/strong> Always verify the flange series installed on your spindle before ordering blades. Flange type is the first compatibility checkpoint \u2014 blade bond type, grit, and thickness are secondary decisions.\n<\/div>\n\n<p>For K&amp;S, ACCRETECH TSK, and other saw platforms, equivalent flange systems exist with similar hub\/hubless distinctions. When ordering blades for unfamiliar equipment, obtain the spindle flange part number from the saw manufacturer&#8217;s documentation and confirm blade compatibility before purchasing.<\/p>\n\n<p>Flange condition is equally important for hubless blades. The concentricity of a hubless blade during operation depends entirely on the flatness, cleanliness, and dimensional accuracy of the flange faces. Worn, contaminated, or damaged flanges are a leading cause of increased runout, kerf width variation, and chipping \u2014 issues explored further in our article on <a href=\"https:\/\/jeez-semicon.com\/de\/blog\/kerf-width-variation-in-wafer-dicing-root-causes-and-control-methods\/\" target=\"_blank\">kerf width variation root causes<\/a>.<\/p>\n\n\n<h2 id=\"installation\">5. Installation Differences and Best Practices<\/h2>\n\n<h3>Installing a Hub Type Blade<\/h3>\n<ol>\n  <li>Confirm the spindle uses the correct hub-compatible flange series.<\/li>\n  <li>Clean the flange face thoroughly with lint-free cloth and isopropyl alcohol.<\/li>\n  <li>Slide the hub blade onto the spindle shaft, seating the hub flat against the inner flange face.<\/li>\n  <li>Thread the outer retaining nut (if applicable) and tighten to the torque specified in the saw manual \u2014 do not over-tighten.<\/li>\n  <li>Verify blade runout (TIR) using the saw&#8217;s built-in runout check or a dial indicator. Acceptable TIR is typically below 2 \u00b5m for fine-pitch applications.<\/li>\n<\/ol>\n\n<h3>Installing a Hubless Blade<\/h3>\n<ol>\n  <li>Remove the outer flange and inspect both flange faces for contamination, nicks, or scoring \u2014 clean with IPA before every blade change.<\/li>\n  <li>Place the hubless blade on the inner flange, ensuring the blade bore seats centrally.<\/li>\n  <li>Install the outer flange and tighten the retaining nut to the specified torque \u2014 alternating tightening sequence if the saw design requires it.<\/li>\n  <li>Perform a kerf check cut on scrap material and verify kerf width and position before running production wafers.<\/li>\n<\/ol>\n\n<div class=\"jz-tip\">\n  <strong>\ud83d\udca1 Tip:<\/strong> For hubless blades, establish a scheduled flange inspection interval based on blade change frequency \u2014 typically every 10\u201320 blade changes. Replace flanges showing any visible wear on the contact faces; flange wear is a hidden source of gradually increasing chipping that is often misattributed to blade quality.\n<\/div>\n\n\n<h2 id=\"which-to-choose\">6. Which Type Should You Choose?<\/h2>\n\n<p>In most cases, your dicing saw&#8217;s installed flange configuration will pre-determine which blade type you must use \u2014 the decision is made at the equipment procurement stage rather than at the blade ordering stage. However, when setting up a new process line or evaluating blade options for a saw that can accept either configuration, the following guidelines apply:<\/p>\n\n<ul>\n  <li><strong>Choose hub type<\/strong> when: working with ultra-thin blades (below ~0.04 mm), using electroformed nickel bond blades for fine-pitch or QFN applications, or when runout minimisation is the top priority.<\/li>\n  <li><strong>Choose hubless type<\/strong> when: running standard silicon, glass, or ceramic dicing with resin or metal bond blades at conventional thicknesses, blade cost per unit is a significant factor, or the existing saw inventory already uses 20-series flanges.<\/li>\n<\/ul>\n\n<p>For a complete picture of how mounting configuration interacts with bond type, grit, and process parameters, the <a href=\"https:\/\/jeez-semicon.com\/de\/blog\/diamond-dicing-blades\/\" target=\"_blank\">pillar guide on dicing blades<\/a> brings all these variables together in one reference.<\/p>\n\n<hr>\n\n<div class=\"jz-cta\">\n  <h3>Need Help Identifying the Right Blade Configuration for Your Saw?<\/h3>\n  <p>Jizhi Electronic Technology supplies both hub type and hubless dicing blades across all major bond types. Share your saw model and flange part number and our team will confirm exact compatibility.<\/p>\n  <a href=\"https:\/\/jeez-semicon.com\/de\/contact\/\" target=\"_blank\" class=\"jz-btn\">Ask Our Engineers<\/a>\n  <a href=\"https:\/\/jeez-semicon.com\/de\/semi-categories\/dicing_blade\/\" target=\"_blank\" class=\"jz-btn outline\">View Product Range<\/a>\n<\/div>\n\n<h2 id=\"faq\">7. Frequently Asked Questions<\/h2>\n\n<div class=\"jz-faq-item\">\n  <div class=\"jz-faq-q\">Can I convert my dicing saw from hub type to hubless blades (or vice versa)?<\/div>\n  <div class=\"jz-faq-a\">Yes, by replacing the spindle flange set. On DISCO saws, for example, switching from a 2H-series hub flange to a 20-series hubless flange is a routine maintenance operation. However, verify with your equipment supplier that the spindle shaft dimensions are compatible before purchasing replacement flanges, as shaft specifications vary between saw models and generations.<\/div>\n<\/div>\n\n<div class=\"jz-faq-item\">\n  <div class=\"jz-faq-q\">Do hub type blades always have lower runout than hubless blades?<\/div>\n  <div class=\"jz-faq-a\">Hub blades have an inherent pre-centring advantage because the hub machining establishes concentricity between bore and rim before installation. However, a hubless blade mounted on well-maintained, precisely-made flanges can achieve runout values comparable to hub blades in the same thickness range. The difference becomes more significant at very thin blade thicknesses, where hub support is structurally essential.<\/div>\n<\/div>\n\n<div class=\"jz-faq-item\">\n  <div class=\"jz-faq-q\">Why are electroformed blades almost always hub type?<\/div>\n  <div class=\"jz-faq-a\">Electroformed blades are extremely thin \u2014 often 0.015\u20130.050 mm \u2014 and the diamond rim alone has essentially no lateral stiffness at these thicknesses. Without the rigidity of an aluminium hub, the rim would deflect and vibrate catastrophically during cutting, producing severe chipping and rapid failure. The hub is structurally inseparable from the electroformed blade design.<\/div>\n<\/div>\n\n<div class=\"jz-faq-item\">\n  <div class=\"jz-faq-q\">How often should I replace dicing flanges?<\/div>\n  <div class=\"jz-faq-a\">There is no universal replacement interval \u2014 it depends on blade change frequency and workpiece material abrasiveness. As a practical guideline, inspect flanges every 10\u201320 blade changes and replace any flange showing visible wear marks, scoring, or flatness deviation on the contact face. If you notice a gradual trend of increasing kerf width or chipping despite using fresh blades, flange wear is a likely contributor.<\/div>\n<\/div>\n\n<p style=\"margin-top:2rem;font-size:.9rem;color:#6b7280;\">\u21a9 Return to the full guide: <a href=\"https:\/\/jeez-semicon.com\/de\/blog\/diamond-dicing-blades\/\" target=\"_blank\">Diamond Dicing Blades \u2014 The Complete Guide<\/a><\/p>\n\n<\/div><!-- \/.jz-art -->","protected":false},"excerpt":{"rendered":"<p>\u2190 Back to: Diamond Dicing Blades: The Complete Guide When engineers first encounter the terms &#8220;hub type&#8221; and &#8220;hubless&#8221; dicing blades, they often assume it is a minor mechanical detail.  &#8230;<\/p>","protected":false},"author":1,"featured_media":1741,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[9,59],"tags":[],"class_list":["post-1704","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-industry"],"acf":[],"_links":{"self":[{"href":"https:\/\/jeez-semicon.com\/de\/wp-json\/wp\/v2\/posts\/1704","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jeez-semicon.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jeez-semicon.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jeez-semicon.com\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jeez-semicon.com\/de\/wp-json\/wp\/v2\/comments?post=1704"}],"version-history":[{"count":2,"href":"https:\/\/jeez-semicon.com\/de\/wp-json\/wp\/v2\/posts\/1704\/revisions"}],"predecessor-version":[{"id":1706,"href":"https:\/\/jeez-semicon.com\/de\/wp-json\/wp\/v2\/posts\/1704\/revisions\/1706"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jeez-semicon.com\/de\/wp-json\/wp\/v2\/media\/1741"}],"wp:attachment":[{"href":"https:\/\/jeez-semicon.com\/de\/wp-json\/wp\/v2\/media?parent=1704"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jeez-semicon.com\/de\/wp-json\/wp\/v2\/categories?post=1704"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jeez-semicon.com\/de\/wp-json\/wp\/v2\/tags?post=1704"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}