{"id":4713,"date":"2022-06-21T07:42:08","date_gmt":"2022-06-21T00:42:08","guid":{"rendered":"https:\/\/robot3t.com\/?post_type=product&#038;p=4713"},"modified":"2026-10-15T09:09:40","modified_gmt":"2026-10-15T02:09:40","slug":"g3t-11-ultra-compact-harmonic-gear","status":"publish","type":"product","link":"https:\/\/robot3t.com\/en\/products\/g3t-11-ultra-compact-harmonic-gear\/","title":{"rendered":"G3T-11: Ultra-Compact Harmonic Gear"},"content":{"rendered":"<div class=\"r3-keyspecs\">\n<div><strong>50 \u00b7 80 \u00b7 100<\/strong><span>Reduction ratios<\/span><\/div>\n<div><strong>Up to 13.2 Nm<\/strong><span>Peak torque<\/span><\/div>\n<div><strong>\u2264 20 arcsec<\/strong><span>Backlash<\/span><\/div>\n<div><strong>10,000 h<\/strong><span>Design life<\/span><\/div>\n<\/div>\n<p>G3T-11 is an ultra-compact, thin harmonic gear (strain wave gear) for small designs where every millimetre counts. Its hollow structure lets cables, air lines or shafts pass through the center, and its zero-play tooth engagement keeps backlash within 20 arc-seconds. It is a good fit for robot wrists, grippers, camera gimbals, small actuators and any precision axis that needs a high ratio in a tiny, single stage. Supplied and supported by Robot3T, with engineering help to integrate it into your design.<\/p>\n<a href=\"\/en\/contact\/\" class=\"button primary\" style=\"border-radius:99px;\">\n\t\t<span>Request a quote<\/span>\n\t<\/a>\n <a href=\"https:\/\/wa.me\/84974908615\" class=\"button primary is-outline\" style=\"border-radius:99px;\">\n\t\t<span>WhatsApp +84 974 908 615<\/span>\n\t<\/a>\n\n<h3 class=\"r3-spec-title\">Typical applications<\/h3>\n<ul>\n<li><strong>Small robot joints:<\/strong> wrists of light cobots, SCARA and desktop robots.<\/li>\n<li><strong>Grippers and end-effectors:<\/strong> compact rotary and gripping axes.<\/li>\n<li><strong>Automation equipment:<\/strong> pick-and-place heads, inspection stages, camera gimbals.<\/li>\n<li><strong>Research and education:<\/strong> robotics projects and custom actuator development.<\/li>\n<\/ul>\n<h3 class=\"r3-spec-title\">Why G3T-11<\/h3>\n<ul>\n<li><strong>Super thin and compact<\/strong> \u2013 ultra-compact size 11 design saves space in joints and actuators.<\/li>\n<li><strong>Hollow structure<\/strong> \u2013 route cables, tubes or shafts through the center for a clean design.<\/li>\n<li><strong>High load capacity<\/strong> \u2013 up to 13.2 Nm peak torque in a very small package.<\/li>\n<li><strong>High positioning accuracy<\/strong> \u2013 backlash max 20 arcsec for repeatable motion.<\/li>\n<li><strong>Three ratios in one size<\/strong> \u2013 50, 80 or 100 to balance speed and torque.<\/li>\n<\/ul>\n<h3 class=\"r3-spec-title\">Specifications<\/h3>\n<div class=\"r3-spec\">\n<table>\n<tbody>\n<tr>\n<td>Model<\/td>\n<td>G3T-11<\/td>\n<\/tr>\n<tr>\n<td>Reduction ratio<\/td>\n<td>50 \/ 80 \/ 100<\/td>\n<\/tr>\n<tr>\n<td>Rated output torque<\/td>\n<td>4.2 \/ 5 \/ 6 Nm<\/td>\n<\/tr>\n<tr>\n<td>Peak (max. allowed) torque<\/td>\n<td>10 \/ 10.5 \/ 13.2 Nm<\/td>\n<\/tr>\n<tr>\n<td>Average allowed torque<\/td>\n<td>6.6 \/ 8.6 \/ 10.5 Nm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table>\n<tbody>\n<tr>\n<td>Backlash<\/td>\n<td>\u2264 20 arcsec<\/td>\n<\/tr>\n<tr>\n<td>Max. input speed<\/td>\n<td>8,500 rpm<\/td>\n<\/tr>\n<tr>\n<td>Average input speed<\/td>\n<td>3,500 rpm<\/td>\n<\/tr>\n<tr>\n<td>Design life<\/td>\n<td>10,000 h<\/td>\n<\/tr>\n<tr>\n<td>Structure<\/td>\n<td>Ultra-compact, thin, hollow<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p style=\"font-size:14px;color:#666;\">Torque values are listed in the order ratio 50 \/ 80 \/ 100.<\/p>\n<h3 class=\"r3-spec-title\">Product and dimensions<\/h3>\n<div class=\"row align-middle\"  id=\"row-24810529\">\n\n\t<div id=\"col-1850581342\" class=\"col medium-5 small-12 large-5\"  >\n\t\t\t\t<div class=\"col-inner text-center\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1366646473\">\n\t\t<a class=\"image-lightbox lightbox-gallery\" title=\"\" href=\"https:\/\/robot3t.com\/wp-content\/uploads\/2022\/06\/z3586471538250_81074f5e105a67865110b83601d36cf8-800x800.jpg\">\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/robot3t.com\/wp-content\/uploads\/2022\/06\/z3586471538250_81074f5e105a67865110b83601d36cf8-800x800.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/robot3t.com\/wp-content\/uploads\/2022\/06\/z3586471538250_81074f5e105a67865110b83601d36cf8-800x800.jpg 800w, https:\/\/robot3t.com\/wp-content\/uploads\/2022\/06\/z3586471538250_81074f5e105a67865110b83601d36cf8-400x400.jpg 400w, https:\/\/robot3t.com\/wp-content\/uploads\/2022\/06\/z3586471538250_81074f5e105a67865110b83601d36cf8-768x768.jpg 768w, https:\/\/robot3t.com\/wp-content\/uploads\/2022\/06\/z3586471538250_81074f5e105a67865110b83601d36cf8-300x300.jpg 300w, https:\/\/robot3t.com\/wp-content\/uploads\/2022\/06\/z3586471538250_81074f5e105a67865110b83601d36cf8-600x600.jpg 600w, https:\/\/robot3t.com\/wp-content\/uploads\/2022\/06\/z3586471538250_81074f5e105a67865110b83601d36cf8-100x100.jpg 100w, https:\/\/robot3t.com\/wp-content\/uploads\/2022\/06\/z3586471538250_81074f5e105a67865110b83601d36cf8.jpg 900w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\t\t\n<style>\n#image_1366646473 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n\n\t<div id=\"col-1206501937\" class=\"col medium-7 small-12 large-7\"  >\n\t\t\t\t<div class=\"col-inner\"  >\n\t\t\t\n\t\t\t\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_967019189\">\n\t\t<a class=\"image-lightbox lightbox-gallery\" title=\"\" href=\"https:\/\/robot3t.com\/wp-content\/uploads\/2022\/06\/G3T-drawing.png\">\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1020\" height=\"508\" src=\"https:\/\/robot3t.com\/wp-content\/uploads\/2022\/06\/G3T-drawing.png\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/robot3t.com\/wp-content\/uploads\/2022\/06\/G3T-drawing.png 1298w, https:\/\/robot3t.com\/wp-content\/uploads\/2022\/06\/G3T-drawing-768x383.png 768w, https:\/\/robot3t.com\/wp-content\/uploads\/2022\/06\/G3T-drawing-600x299.png 600w\" sizes=\"auto, (max-width: 1020px) 100vw, 1020px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\t\t\n<style>\n#image_967019189 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t\n<\/div>\n<h3 class=\"r3-spec-title\">Frequently asked questions<\/h3>\n<p><strong>Which ratio should I choose?<\/strong><br \/>Ratio 100 gives the most torque and the finest resolution; ratio 50 gives higher output speed. Tell us your load, speed and motor and we will recommend one.<\/p>\n<p><strong>Can you supply it with a motor, encoder and brake as a complete joint?<\/strong><br \/>Yes. We can match G3T-11 with a servo motor and driver, or build a complete robot joint module for your project.<\/p>\n<p><strong>Can you modify the flanges or hollow bore?<\/strong><br \/>For volume orders, custom flange and interface designs are possible. Send us your drawing or requirements.<\/p>\n<p><strong>Do you ship outside Vietnam?<\/strong><br \/>Yes. Contact sales@robot3t.com for a quote including shipping to your country.<\/p>\n<div class=\"r3-cta\">\n<h3>Designing a compact robot joint or actuator?<\/h3>\n<p>Send us your load, speed and space requirements. Our engineers will help you select the gear, motor and driver, and quote at no cost.<\/p>\n<a href=\"\/en\/contact\/\" class=\"button primary\" style=\"border-radius:99px;\">\n\t\t<span>Request a quote<\/span>\n\t<\/a>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Ultra-compact, thin harmonic gear with hollow center for small robot joints, grippers and precision actuators. Ratios 50 \/ 80 \/ 100, peak torque up to 13.2 Nm, backlash \u2264 20 arcsec, max input 8,500 rpm, 10,000 h design life. Supplied and supported by Robot3T.<\/p>\n","protected":false},"featured_media":4814,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[221],"product_tag":[],"class_list":["post-4713","product","type-product","status-publish","has-post-thumbnail","product_cat-robot-parts-components","first","instock","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/robot3t.com\/en\/wp-json\/wp\/v2\/product\/4713","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/robot3t.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/robot3t.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/robot3t.com\/en\/wp-json\/wp\/v2\/comments?post=4713"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/robot3t.com\/en\/wp-json\/wp\/v2\/media\/4814"}],"wp:attachment":[{"href":"https:\/\/robot3t.com\/en\/wp-json\/wp\/v2\/media?parent=4713"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/robot3t.com\/en\/wp-json\/wp\/v2\/product_brand?post=4713"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/robot3t.com\/en\/wp-json\/wp\/v2\/product_cat?post=4713"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/robot3t.com\/en\/wp-json\/wp\/v2\/product_tag?post=4713"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}