{"id":908,"date":"2026-10-11T02:54:19","date_gmt":"2026-10-11T02:54:19","guid":{"rendered":"https:\/\/aft-forge.jk-ideaweb.com\/?post_type=product&#038;p=908"},"modified":"2026-10-19T13:01:14","modified_gmt":"2026-10-19T13:01:14","slug":"gear-hub","status":"publish","type":"product","link":"https:\/\/aft-forge.com\/en\/product\/gear-hub\/","title":{"rendered":"Gear Hub"},"content":{"rendered":"<div id=\"prodNav\">\n<div class=\"tab-content responsive\" style=\"text-align: left;\">\n<div id=\"contentprod0\" class=\"tab-pane active txtNormal\">\n<h2>Forged Aluminum Gear Hub: Six-Lobe Drivetrain Hub<\/h2>\n<p>The forged aluminum gear hub is a disc-shaped drive part in a heavy-motorcycle drivetrain. It is a six-lobe flower-shaped disc with a round central boss and six recesses around it that can be machined into bolt holes or cush-drive rubber seats. Parts like this are used in rear-wheel drives, clutches or transmission mechanisms, transmitting torque while absorbing shock.<\/p>\n<p>Al Forge Tech (AFT) has produced heavy-motorcycle transmission hubs and handlebar clamps in 6061-T6, 2014-T6 and 7075-T6, including forging, machining and anodizing. The six-lobe shape is closed-die hot forged in one operation so grain flow runs continuously through each lobe and the central boss; after heat treatment, the center bore, bolt holes and mating faces are turned and CNC-machined.<\/p>\n<h3>Key Features<\/h3>\n<ul>\n<li>Six-lobe shape and central boss forged in one operation<\/li>\n<li>Available in 6061-T6, 2014-T6, 7075-T6 and similar grades<\/li>\n<li>Center bore, bolt holes and mating faces turned and CNC-machined<\/li>\n<li>Anodizing for appearance and corrosion resistance<\/li>\n<\/ul>\n<h2>Forged Aluminum Gear Hub Specifications and Manufacturing Capability<\/h2>\n<div class=\"table-container\">\n<table class=\"table table-bordered table-striped\">\n<thead>\n<tr>\n<th>Item<\/th>\n<th>Details<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Product category<\/td>\n<td>Aluminum Forging Moto Parts<\/td>\n<\/tr>\n<tr>\n<td>Application<\/td>\n<td>Heavy-motorcycle rear-wheel drives, clutches and transmission mechanisms<\/td>\n<\/tr>\n<tr>\n<td>Primary process<\/td>\n<td>Closed-die hot forging (hot forging presses 600T\u20138,000T)<\/td>\n<\/tr>\n<tr>\n<td>Material<\/td>\n<td>Per customer specification; similar parts produced in 6061-T6, 2014-T6 and 7075-T6<\/td>\n<\/tr>\n<tr>\n<td>Heat treatment<\/td>\n<td>In-house T4 solution treatment (8 units) and T6 artificial aging (7 units), set by alloy and strength requirement<\/td>\n<\/tr>\n<tr>\n<td>Secondary machining<\/td>\n<td>CNC machining (52 machining centers, 30 lathes), deburring, vibratory finishing<\/td>\n<\/tr>\n<tr>\n<td>Surface finish<\/td>\n<td>Anodizing (including hard anodizing), shot blasting, e-coating or painting, as required<\/td>\n<\/tr>\n<tr>\n<td>Inspection<\/td>\n<td>Zeiss CMM (4 units), hardness testers, spectrometer, fluorescent penetrant inspection line<\/td>\n<\/tr>\n<tr>\n<td>Dimensions and tolerances<\/td>\n<td>Per customer 2D\/3D drawings<\/td>\n<\/tr>\n<tr>\n<td>Quality system<\/td>\n<td>IATF 16949:2016, ISO 14001:2015<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2>Forged Aluminum Gear Hub Manufacturing Process<\/h2>\n<ol>\n<li><strong>Drawing review and DFM<\/strong>: we confirm alloy, load direction and critical dimensions, then run QForm simulation to predict metal flow and defect risk.<\/li>\n<li><strong>Die design and manufacturing<\/strong>: the number of die sets (for example, blocker and finisher dies) is planned around part complexity, and die contours are checked with a portable 3D scanner.<\/li>\n<li><strong><a href=\"https:\/\/aft-forge.com\/forging-service\/hot-forging-service\/\">Hot forging<\/a><\/strong>: closed-die forming on 600T\u20138,000T hot forging presses creates a continuous grain flow that follows the part contour.<\/li>\n<li><strong>Heat treatment<\/strong>: T4 solution treatment and T6 artificial aging are performed in-house, with parameters set by alloy and strength requirement.<\/li>\n<li><strong><a href=\"https:\/\/aft-forge.com\/forging-service\/aluminum-cnc-machining-services\/\">CNC machining<\/a> and finishing<\/strong>: holes, threads and mating surfaces are machined, followed by deburring, vibratory finishing, shot blasting or anodizing as required.<\/li>\n<li><strong>Inspection and shipment<\/strong>: dimensions, hardness and chemical composition are verified with CMM, hardness testers and a spectrometer, with lot traceability kept under IATF 16949.<\/li>\n<\/ol>\n<h2>FAQ<\/h2>\n<h3>Which aluminum alloys are used for gear hubs, and how are they chosen?<\/h3>\n<p>AFT&#8217;s heavy-motorcycle transmission hubs and handlebar clamps have used 6061-T6, 2014-T6 and 7075-T6. 6061-T6 balances machinability and corrosion resistance; 2014-T6 offers higher strength for heavier loads; 7075-T6 is a high-strength alloy for designs demanding maximum strength and lightness, but needs anodizing for corrosion resistance. The choice depends on load, corrosion requirement and cost.<\/p>\n<h3>How is bolt-hole indexing ensured on the hub?<\/h3>\n<p>Bolt-hole indexing and pitch circle diameter determine how the hub assembles to sprockets or wheel hubs. After heat treatment, AFT machines all bolt holes in one CNC setup so indexing shares one datum, then measures pitch circle diameter, indexing and hole size on Zeiss CMM.<\/p>\n<h3>How does a forged aluminum Forged Aluminum Gear Hub compare with casting or machining from billet?<\/h3>\n<p>Forging shapes aluminum in the solid state under pressure, so the grain flow follows the part contour and the porosity and shrinkage common in castings are avoided. Compared with machining from solid billet, a near-net-shape forging removes less material and shortens machining time. For a Forged Aluminum Gear Hub under repeated loads, forging balances strength and weight; the final choice still depends on design loads and volume.<\/p>\n<h3>Is heat treatment for the Forged Aluminum Gear Hub done in-house?<\/h3>\n<p>Yes. Al Forge Tech operates 8 T4 solution treatment units and 7 T6 artificial aging units on site, so the Forged Aluminum Gear Hub can be solution treated, quenched and aged in the same facility before machining and inspection. Keeping heat treatment in-house removes inter-plant transport, reduces lead-time risk and keeps lot traceability within one quality system. Parameters are set according to the alloy grade and your specification.<\/p>\n<h3>Can the Forged Aluminum Gear Hub be anodized or given other surface finishes?<\/h3>\n<p>Yes. Al Forge Tech offers anodizing (including hard anodizing), shot blasting, vibratory finishing, e-coating and painting, plus pickling and ultrasonic washing lines to clean parts after machining. Please note the finish type and film thickness on the drawing so machining allowances and cosmetic standards for the Forged Aluminum Gear Hub can be evaluated together.<\/p>\n<h2>Request a Quote for the Forged Aluminum Gear Hub<\/h2>\n<p>Developing a new Forged Aluminum Gear Hub or converting an existing part to aluminum forging? Send us your 3D\/2D drawings, alloy and temper, annual volume and finishing requirements. Our engineering team will reply with a feasibility review, die plan and quotation.<\/p>\n<ul>\n<li>Online inquiry: <a href=\"https:\/\/aft-forge.com\/contact-us\/\">Contact Us<\/a><\/li>\n<li>Email: <a href=\"mailto:aft@aft-forge.com.tw\">aft@aft-forge.com.tw<\/a><\/li>\n<\/ul>\n<p>To compare similar parts, browse <a href=\"https:\/\/aft-forge.com\/automobile-parts\/\">Aluminum Forging Automobile Parts <\/a>\u00a0and our <a href=\"https:\/\/aft-forge.com\/category\/applications\/\">automotive aluminum forging applications<\/a>, or visit <a href=\"https:\/\/aft-forge.com\/about-us\/\">About Us<\/a> for our equipment and certifications.<\/p>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Forged Aluminum Gear Hub: Six-Lobe Drivetrain Hub The forged aluminum gear hub is a disc-shaped drive part in a heavy-motorcycle drivetrain. It is a six-lobe flower-shaped disc with a round central boss and six recesses around it that can be machined into bolt holes or cush-drive rubber seats. Parts like this are used in rear-wheel [&hellip;]<\/p>\n","protected":false},"featured_media":909,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[26],"product_tag":[],"class_list":["post-908","product","type-product","status-publish","has-post-thumbnail","product_cat-moto-parts","first","instock","taxable","shipping-taxable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/aft-forge.com\/en\/wp-json\/wp\/v2\/product\/908","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aft-forge.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/aft-forge.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/aft-forge.com\/en\/wp-json\/wp\/v2\/comments?post=908"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aft-forge.com\/en\/wp-json\/wp\/v2\/media\/909"}],"wp:attachment":[{"href":"https:\/\/aft-forge.com\/en\/wp-json\/wp\/v2\/media?parent=908"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/aft-forge.com\/en\/wp-json\/wp\/v2\/product_brand?post=908"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/aft-forge.com\/en\/wp-json\/wp\/v2\/product_cat?post=908"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/aft-forge.com\/en\/wp-json\/wp\/v2\/product_tag?post=908"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}