{"id":3644,"date":"2026-04-15T05:46:30","date_gmt":"2026-04-15T10:46:30","guid":{"rendered":"https:\/\/www.emag.com\/blog\/en\/?p=3644"},"modified":"2026-04-15T05:46:30","modified_gmt":"2026-04-15T10:46:30","slug":"how-does-it-work-strain-wave-gear","status":"publish","type":"post","link":"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/","title":{"rendered":"How does… a strain wave gear actually work? Five questions \u2013 five answers"},"content":{"rendered":"

Strain\u00a0<\/span>w<\/span>ave\u00a0<\/span>gearboxes are<\/span>\u00a0an indispensable part of precision drive systems.\u00a0<\/span>They play a central role in robotics, automation technology, and positioning axes with high accuracy\u00a0<\/span>requirements in particular<\/span>.<\/span>\u00a0But what exactly is the operating principle behind this gear technology, and why is it particularly suitable for compact, low-backlash drive solutions?<\/span><\/span>\u00a0<\/span><\/strong><\/p>\n

<\/p>\n

1. How does the strain wave gearwork?<\/h3>\n

Strain\u00a0wave gearboxes differ fundamentally from classic gearboxes in that their mode of operation is not based on rigidly intermeshing gears. Instead, this type of gearbox makes targeted use of the elastic deformation of a thin-walled gear to achieve a high reduction ratio, a compact design, and low-backlash power transmission.<\/span>\u00a0<\/span><\/p>\n

A\u00a0strain\u00a0wave gear consists\u00a0essentially of\u00a0three functionally coordinated components: the\u00a0<\/span>wave generator<\/span><\/b>, the\u00a0<\/span>flexspline<\/span><\/b>, and the\u00a0<\/span>circular spline<\/span><\/b>. The wave generator is usually connected to the drive shaft and consists of an elliptical cam that deforms the\u00a0flexspline\u00a0via a thin-walled bearing. The\u00a0flexspline\u00a0is a cylindrical, elastic gear with slightly fewer teeth than the surrounding rigid circular spline.<\/span>\u00a0<\/span><\/p>\n

The rotation of the wave generator causes the\u00a0flexspline\u00a0to undergo continuous elliptical deformation. As a result of this deformation, the\u00a0flexspline\u00a0engages with opposite tooth profiles on the circular spline. The different\u00a0number of teeth\u00a0on the two gears is crucial here: with each revolution of the wave generator, the point of engagement shifts by a few teeth. This results in a slow relative movement of the\u00a0flexspline\u00a0relative\u00a0to the circular spline and thus the desired reduction ratio.<\/span>\u00a0<\/span><\/p>\n

The\u00a0particular advantage\u00a0of this principle is that high reduction ratios can be achieved in just one gear stage.\u00a0At the same time, the elastic preload of the\u00a0flexspline\u00a0ensures low-backlash meshing. For the user, this means precision movements, compact sizes, and\u00a0very good\u00a0repeat accuracy, especially in applications with frequent direction changes and high control quality requirements.<\/span>\u00a0<\/span><\/p>\n

\"Schematic

Schematic representation of a strain wave gear with circular spline, flexspline, and elliptical wave generator.<\/p><\/div>\n

Source:<\/span><\/span>\u00a0<\/span>Jahobr, CC0, via Wikimedia Commons, https:\/\/upload.wikimedia.org\/wikipedia\/commons\/2\/21\/HarmonicDriveAni.gif<\/span><\/span><\/pre>\n
 <\/p>\n
3. What is the purpose of the technology?<\/h3>\n
The strain wave gear enables high-precision motion transmission in a very compact design. It is used wherever rotary motions not only have to be transmitted, but also precisely controlled and reproducibly positioned. A central purpose is low-backlash torque transmission. Due to the elastic deformation of the\u00a0flexspline, several pairs of teeth engage simultaneously, which largely eliminates tooth flank backlash. This enables high repeat accuracy and stable control behavior, even with frequent changes\u00a0in\u00a0direction. At the same time,\u00a0very high\u00a0reduction ratios can be achieved in just one gear stage. The reduction ratio results from the small tooth difference between the\u00a0flexspline\u00a0and circular spline. The even load distribution over many teeth also allows high torques with comparatively small dimensions.<\/span>\u00a0<\/span><\/p>\n
\"Exploded
Exploded view of a strain wave gear with wave generator, flexspline, and circular spline.<\/p><\/div>\n
 <\/p>\n
3. Who invented it?<\/h3>\n
The functional principle of the\u00a0strain\u00a0wave gear was developed by American engineer Clarence Walton Musser. He first described the idea of elastic gearing in a patent application in 1957 (US Patent 2,906,143 \u2013 “Strain Wave Gearing”). Industrial use began in the 1960s, initially in the aerospace industry, where\u00a0the compact\u00a0design, low-backlash gears, and high accuracy offered decisive advantages. With the further development of materials, gear geometries, and manufacturing technologies,\u00a0strain\u00a0wave gearboxes found increasing application in industrial automation and robotics from the 1970s onwards.<\/span>\u00a0<\/span><\/p>\n
\"Industrial
Industrial robots with marked joint axes in which strain wave gears are used. The illustration shows typical areas of application for compact gears in robotics.<\/p><\/div>\n
 <\/p>\n
4. What are the advantages and disadvantages of strain wave gearboxes?<\/h3>\n
The main advantage of the strain wave gear\u00a0is its low-backlash torque transmission. The elastic gearing allows direction changes with minimal backlash (often <1 arcmin), resulting in high positioning and repeat accuracy. This makes the gear particularly suitable for precision, controlled drive systems. Another advantage is the high reduction ratio in just one gear stage. This enables very compact drive solutions with high torque density. Power transmission via many simultaneously load-bearing teeth also ensures smooth running and reduces local load peaks.\u00a0<\/span>\u00a0<\/span><\/p>\n
On the other hand, there is limited torsional stiffness resulting from the elastic deformation of the\u00a0flexspline, which must be\u00a0considered\u00a0in dynamic applications. Efficiency is also lower than that of classic gear drives, as part of the power is\u00a0required\u00a0for cyclic deformation. Further limitations relate to shock and overload\u00a0capacity as well as limited continuous speeds. Alternative gear concepts are therefore more suitable for highly dynamic or shock-loaded applications.<\/span>\u00a0<\/span><\/p>\n
\"Humanoid
Depiction of a humanoid robot with highlighted joint positions on the arms, legs, and torso. The graphic shows typical installation locations for high-precision gearboxes for multi-axis movements.<\/p><\/div>\n
 <\/p>\n
5. What does the future hold?<\/h3>\n
Strain wave gears\u00a0play\u00a0a central role\u00a0in humanoid robots. High positioning accuracy, a compact design, and low backlash are crucial, especially in the arm, hand, and leg axes,\u00a0in order to\u00a0replicate human movements with precision and repetition. Strain wave gears are particularly suitable for joints with high reduction ratios, where the motor, sensory equipment, and gearbox are\u00a0closely integrated,\u00a0and stable control behavior is\u00a0required. Technical developments\u00a0focus\u00a0on extending the service life of the\u00a0flexspline, increasing rigidity, and improving suitability for dynamic load changes, such as those that occur in humanoid motion sequences. This means that strain wave gear boxes\u00a0remain\u00a0a key technology for precision and compact joint drives in humanoid robot systems.<\/span>\u00a0<\/span><\/p>\n
Read here to learn how we achieve high-precision, complete-machining of wave generators in harmonic reducers on the VL 350 GT vertical turning and grinding machine.<\/span><\/span>\u00a0<\/span><\/span><\/a><\/h3>\n","protected":false},"excerpt":{"rendered":"
How does a strain wave gear work? Design, operating principle, advantages, and use in drive systems. <\/p>\n","protected":false},"author":13,"featured_media":3646,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"no","_lmt_disable":"","editor_notices":[],"footnotes":""},"categories":[2613],"tags":[2902,2549,2578,2904,2541,2903,2901,2897],"class_list":["post-3644","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-how-does-it-work","tag-automation-technology","tag-gear-technology","tag-mechanical-engineering","tag-positioning-drives","tag-precision-drives","tag-reduction","tag-robotics","tag-strain-wave-gear"],"yoast_head":"\nStrain Wave Gear: Function & benefits<\/title>\n<meta name=\"description\" content=\"How does a strain wave gear work? Design, operating principle, advantages, and use in drive systems. Production possibilities with VL 350 GT.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Strain Wave Gear: Function & benefits\" \/>\n<meta property=\"og:description\" content=\"How does a strain wave gear work? Design, operating principle, advantages, and use in drive systems. Production possibilities with VL 350 GT.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/\" \/>\n<meta property=\"og:site_name\" content=\"EMAG Group - Company Blog\" \/>\n<meta property=\"article:published_time\" content=\"2026-04-15T10:46:30+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emag.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2026\/04\/Blog_Header_strain-wave-gear_1170x781px_en.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1170\" \/>\n\t<meta property=\"og:image:height\" content=\"781\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Oliver Hagenlocher\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Oliver Hagenlocher\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/\"},\"author\":{\"name\":\"Oliver Hagenlocher\",\"@id\":\"https:\/\/www.emag.com\/blog\/en\/#\/schema\/person\/9ae8c8fc62dc80b80a172bf9b201adb6\"},\"headline\":\"How does… a strain wave gear actually work? Five questions \u2013 five answers\",\"datePublished\":\"2026-04-15T10:46:30+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/\"},\"wordCount\":953,\"image\":{\"@id\":\"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.emag.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2026\/04\/Blog_Header_strain-wave-gear_1170x781px_en.jpg\",\"keywords\":[\"automation technology\",\"Gear technology\",\"mechanical engineering\",\"positioning drives\",\"Precision drives\",\"reduction\",\"robotics\",\"strain wave gear\"],\"articleSection\":[\"How does it work\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/\",\"url\":\"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/\",\"name\":\"Strain Wave Gear: Function & benefits\",\"isPartOf\":{\"@id\":\"https:\/\/www.emag.com\/blog\/en\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.emag.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2026\/04\/Blog_Header_strain-wave-gear_1170x781px_en.jpg\",\"datePublished\":\"2026-04-15T10:46:30+00:00\",\"author\":{\"@id\":\"https:\/\/www.emag.com\/blog\/en\/#\/schema\/person\/9ae8c8fc62dc80b80a172bf9b201adb6\"},\"description\":\"How does a strain wave gear work? Design, operating principle, advantages, and use in drive systems. Production possibilities with VL 350 GT.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/#primaryimage\",\"url\":\"https:\/\/www.emag.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2026\/04\/Blog_Header_strain-wave-gear_1170x781px_en.jpg\",\"contentUrl\":\"https:\/\/www.emag.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2026\/04\/Blog_Header_strain-wave-gear_1170x781px_en.jpg\",\"width\":1170,\"height\":781},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.emag.com\/blog\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"How does… a strain wave gear actually work? Five questions \u2013 five answers\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.emag.com\/blog\/en\/#website\",\"url\":\"https:\/\/www.emag.com\/blog\/en\/\",\"name\":\"EMAG Group - Company Blog\",\"description\":\"Articles on machines, technologies and more\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.emag.com\/blog\/en\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.emag.com\/blog\/en\/#\/schema\/person\/9ae8c8fc62dc80b80a172bf9b201adb6\",\"name\":\"Oliver Hagenlocher\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.emag.com\/blog\/en\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/www.emag.com\/blog\/wp-content\/uploads\/2024\/12\/cropped-Blog_Oli_200x200px-96x96.jpg\",\"contentUrl\":\"https:\/\/www.emag.com\/blog\/wp-content\/uploads\/2024\/12\/cropped-Blog_Oli_200x200px-96x96.jpg\",\"caption\":\"Oliver Hagenlocher\"},\"url\":\"https:\/\/www.emag.com\/blog\/en\/author\/ylansky\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Strain Wave Gear: Function & benefits","description":"How does a strain wave gear work? Design, operating principle, advantages, and use in drive systems. Production possibilities with VL 350 GT.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/","og_locale":"en_US","og_type":"article","og_title":"Strain Wave Gear: Function & benefits","og_description":"How does a strain wave gear work? Design, operating principle, advantages, and use in drive systems. Production possibilities with VL 350 GT.","og_url":"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/","og_site_name":"EMAG Group - Company Blog","article_published_time":"2026-04-15T10:46:30+00:00","og_image":[{"width":1170,"height":781,"url":"https:\/\/www.emag.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2026\/04\/Blog_Header_strain-wave-gear_1170x781px_en.jpg","type":"image\/jpeg"}],"author":"Oliver Hagenlocher","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Oliver Hagenlocher","Est. reading time":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/#article","isPartOf":{"@id":"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/"},"author":{"name":"Oliver Hagenlocher","@id":"https:\/\/www.emag.com\/blog\/en\/#\/schema\/person\/9ae8c8fc62dc80b80a172bf9b201adb6"},"headline":"How does… a strain wave gear actually work? Five questions \u2013 five answers","datePublished":"2026-04-15T10:46:30+00:00","mainEntityOfPage":{"@id":"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/"},"wordCount":953,"image":{"@id":"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/#primaryimage"},"thumbnailUrl":"https:\/\/www.emag.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2026\/04\/Blog_Header_strain-wave-gear_1170x781px_en.jpg","keywords":["automation technology","Gear technology","mechanical engineering","positioning drives","Precision drives","reduction","robotics","strain wave gear"],"articleSection":["How does it work"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/","url":"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/","name":"Strain Wave Gear: Function & benefits","isPartOf":{"@id":"https:\/\/www.emag.com\/blog\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/#primaryimage"},"image":{"@id":"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/#primaryimage"},"thumbnailUrl":"https:\/\/www.emag.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2026\/04\/Blog_Header_strain-wave-gear_1170x781px_en.jpg","datePublished":"2026-04-15T10:46:30+00:00","author":{"@id":"https:\/\/www.emag.com\/blog\/en\/#\/schema\/person\/9ae8c8fc62dc80b80a172bf9b201adb6"},"description":"How does a strain wave gear work? Design, operating principle, advantages, and use in drive systems. Production possibilities with VL 350 GT.","breadcrumb":{"@id":"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/#primaryimage","url":"https:\/\/www.emag.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2026\/04\/Blog_Header_strain-wave-gear_1170x781px_en.jpg","contentUrl":"https:\/\/www.emag.com\/blog\/en\/wp-content\/uploads\/sites\/2\/2026\/04\/Blog_Header_strain-wave-gear_1170x781px_en.jpg","width":1170,"height":781},{"@type":"BreadcrumbList","@id":"https:\/\/www.emag.com\/blog\/en\/how-does-it-work-strain-wave-gear\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.emag.com\/blog\/en\/"},{"@type":"ListItem","position":2,"name":"How does… a strain wave gear actually work? Five questions \u2013 five answers"}]},{"@type":"WebSite","@id":"https:\/\/www.emag.com\/blog\/en\/#website","url":"https:\/\/www.emag.com\/blog\/en\/","name":"EMAG Group - Company Blog","description":"Articles on machines, technologies and more","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.emag.com\/blog\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/www.emag.com\/blog\/en\/#\/schema\/person\/9ae8c8fc62dc80b80a172bf9b201adb6","name":"Oliver Hagenlocher","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.emag.com\/blog\/en\/#\/schema\/person\/image\/","url":"https:\/\/www.emag.com\/blog\/wp-content\/uploads\/2024\/12\/cropped-Blog_Oli_200x200px-96x96.jpg","contentUrl":"https:\/\/www.emag.com\/blog\/wp-content\/uploads\/2024\/12\/cropped-Blog_Oli_200x200px-96x96.jpg","caption":"Oliver Hagenlocher"},"url":"https:\/\/www.emag.com\/blog\/en\/author\/ylansky\/"}]}},"_links":{"self":[{"href":"https:\/\/www.emag.com\/blog\/en\/wp-json\/wp\/v2\/posts\/3644","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.emag.com\/blog\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.emag.com\/blog\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.emag.com\/blog\/en\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/www.emag.com\/blog\/en\/wp-json\/wp\/v2\/comments?post=3644"}],"version-history":[{"count":5,"href":"https:\/\/www.emag.com\/blog\/en\/wp-json\/wp\/v2\/posts\/3644\/revisions"}],"predecessor-version":[{"id":3655,"href":"https:\/\/www.emag.com\/blog\/en\/wp-json\/wp\/v2\/posts\/3644\/revisions\/3655"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emag.com\/blog\/en\/wp-json\/wp\/v2\/media\/3646"}],"wp:attachment":[{"href":"https:\/\/www.emag.com\/blog\/en\/wp-json\/wp\/v2\/media?parent=3644"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emag.com\/blog\/en\/wp-json\/wp\/v2\/categories?post=3644"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emag.com\/blog\/en\/wp-json\/wp\/v2\/tags?post=3644"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}