{"id":7649,"date":"2018-05-31T09:45:18","date_gmt":"2018-05-31T08:45:18","guid":{"rendered":"https:\/\/engineernewsnetwork.com\/blog\/?p=7649"},"modified":"2018-05-30T17:49:37","modified_gmt":"2018-05-30T16:49:37","slug":"springs-constant-force-constant-load","status":"publish","type":"post","link":"https:\/\/www.engineernewsnetwork.com\/blog\/springs-constant-force-constant-load\/","title":{"rendered":"Springs: Constant force &#8211; constant load"},"content":{"rendered":"<span class=\"highlight highlight-blue\"><a href=\"http:\/\/www.leespring.co.uk\" target=\"_blank\" rel=\"noopener\">Constant force springs<\/a><\/span> from <span class=\"highlight highlight-blue\"><a href=\"https:\/\/engineernewsnetwork.com\/blog\/lee-spring-offer-its-complete-torsion-spring-concept\/\" target=\"_blank\" rel=\"noopener\">Lee Spring<\/a><\/span> ex-stock or custom, are a complete spring package offering constant force over the useable range.<\/p>\n<p>They are therefore ideal for applications where a constant load is required.<br \/>\n<script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><br \/>\n<ins class=\"adsbygoogle\" style=\"display: block; text-align: center;\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\" data-ad-client=\"ca-pub-7565662001938327\" data-ad-slot=\"7585079586\"><\/ins><br \/>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><br \/>\nSome of the many applications of constant force springs are in counterbalances, door closers, cable retractors, electric motors, appliances, space vehicles and other long-motion functions.<\/p>\n<p>Motor springs are used for cable retraction, power generation etc.<\/p>\n<p>Power springs are used for retracting applications such as seat belt webbing, tape measures and dog leads, seat recliner, window regulator mechanisms etc.<\/p>\n<p>Where higher loads are encountered then multiple mounting can be used to increase force.<\/p>\n<p>Constant force springs mounted back-to-back make the sum of\u00a0their forces available at one point. This method also provides stable extension over long deflections. Tandem mounting makes the sum of two spring forces available at a single point while pulley mounting doubles the force of a single constant force spring.<\/p>\n<p>Laminar mounting, inter-winding of two or more springs as an assembly, offers the sum of their forces in a minimum of<br \/>\nspace.<\/p>\n<p>Fatigue life of ex-stock constant force springs ranges from 2,500 cycles to 25,000 cycles depending upon the load and size of the spring.<\/p>\n<p>Working deflections up to 42 inches can be achieved and these springs are much easier to handle than a conventional wire spring.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Constant force springs from Lee Spring ex-stock or custom, are a complete spring package offering constant force over the useable range. They are therefore ideal for applications where a constant load is required. Some of the many applications of constant force springs are in counterbalances, door closers, cable retractors, electric motors, appliances, space vehicles and &hellip;<\/p>\n","protected":false},"author":1,"featured_media":7650,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[105],"tags":[4341,821,4342],"class_list":["post-7649","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-design","tag-constant-force-springs","tag-lee-spring","tag-motor-springs"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Springs: Constant force - constant load - Engineer News Network<\/title>\n<meta name=\"description\" content=\"Constant force springs are a complete spring package offering constant force over the useable range\" \/>\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.engineernewsnetwork.com\/blog\/springs-constant-force-constant-load\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Springs: Constant force - constant load - Engineer News Network\" \/>\n<meta property=\"og:description\" content=\"Constant force springs are a complete spring package offering constant force over the useable range\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.engineernewsnetwork.com\/blog\/springs-constant-force-constant-load\/\" \/>\n<meta property=\"og:site_name\" content=\"Engineer News Network\" \/>\n<meta property=\"article:published_time\" content=\"2018-05-31T08:45:18+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2018\/05\/LEESPRING3146-constant-force-springs.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"562\" \/>\n\t<meta property=\"og:image:height\" content=\"375\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/springs-constant-force-constant-load\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/springs-constant-force-constant-load\\\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/#\\\/schema\\\/person\\\/4477342aea8e299c6a21761e513ea8e1\"},\"headline\":\"Springs: Constant force &#8211; constant load\",\"datePublished\":\"2018-05-31T08:45:18+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/springs-constant-force-constant-load\\\/\"},\"wordCount\":233,\"image\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/springs-constant-force-constant-load\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/wp-content\\\/uploads\\\/2018\\\/05\\\/LEESPRING3146-constant-force-springs.jpg\",\"keywords\":[\"Constant force springs\",\"Lee Spring\",\"Motor springs\"],\"articleSection\":[\"Design\"],\"inLanguage\":\"en-GB\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/springs-constant-force-constant-load\\\/\",\"url\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/springs-constant-force-constant-load\\\/\",\"name\":\"Springs: Constant force - constant load - Engineer News Network\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/springs-constant-force-constant-load\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/springs-constant-force-constant-load\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/wp-content\\\/uploads\\\/2018\\\/05\\\/LEESPRING3146-constant-force-springs.jpg\",\"datePublished\":\"2018-05-31T08:45:18+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/#\\\/schema\\\/person\\\/4477342aea8e299c6a21761e513ea8e1\"},\"description\":\"Constant force springs are a complete spring package offering constant force over the useable range\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/springs-constant-force-constant-load\\\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/springs-constant-force-constant-load\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/springs-constant-force-constant-load\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/wp-content\\\/uploads\\\/2018\\\/05\\\/LEESPRING3146-constant-force-springs.jpg\",\"contentUrl\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/wp-content\\\/uploads\\\/2018\\\/05\\\/LEESPRING3146-constant-force-springs.jpg\",\"width\":562,\"height\":375,\"caption\":\"Constant force springs are a complete spring package offering constant force over the useable range\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/springs-constant-force-constant-load\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Springs: Constant force &#8211; constant load\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/\",\"name\":\"Engineer News Network\",\"description\":\"The ultimate online news and information resource for today's engineer\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/#\\\/schema\\\/person\\\/4477342aea8e299c6a21761e513ea8e1\",\"name\":\"admin\",\"url\":\"https:\\\/\\\/www.engineernewsnetwork.com\\\/blog\\\/author\\\/admin\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Springs: Constant force - constant load - Engineer News Network","description":"Constant force springs are a complete spring package offering constant force over the useable range","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.engineernewsnetwork.com\/blog\/springs-constant-force-constant-load\/","og_locale":"en_GB","og_type":"article","og_title":"Springs: Constant force - constant load - Engineer News Network","og_description":"Constant force springs are a complete spring package offering constant force over the useable range","og_url":"https:\/\/www.engineernewsnetwork.com\/blog\/springs-constant-force-constant-load\/","og_site_name":"Engineer News Network","article_published_time":"2018-05-31T08:45:18+00:00","og_image":[{"width":562,"height":375,"url":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2018\/05\/LEESPRING3146-constant-force-springs.jpg","type":"image\/jpeg"}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"Written by":"admin","Estimated reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/springs-constant-force-constant-load\/#article","isPartOf":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/springs-constant-force-constant-load\/"},"author":{"name":"admin","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/#\/schema\/person\/4477342aea8e299c6a21761e513ea8e1"},"headline":"Springs: Constant force &#8211; constant load","datePublished":"2018-05-31T08:45:18+00:00","mainEntityOfPage":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/springs-constant-force-constant-load\/"},"wordCount":233,"image":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/springs-constant-force-constant-load\/#primaryimage"},"thumbnailUrl":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2018\/05\/LEESPRING3146-constant-force-springs.jpg","keywords":["Constant force springs","Lee Spring","Motor springs"],"articleSection":["Design"],"inLanguage":"en-GB"},{"@type":"WebPage","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/springs-constant-force-constant-load\/","url":"https:\/\/www.engineernewsnetwork.com\/blog\/springs-constant-force-constant-load\/","name":"Springs: Constant force - constant load - Engineer News Network","isPartOf":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/springs-constant-force-constant-load\/#primaryimage"},"image":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/springs-constant-force-constant-load\/#primaryimage"},"thumbnailUrl":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2018\/05\/LEESPRING3146-constant-force-springs.jpg","datePublished":"2018-05-31T08:45:18+00:00","author":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/#\/schema\/person\/4477342aea8e299c6a21761e513ea8e1"},"description":"Constant force springs are a complete spring package offering constant force over the useable range","breadcrumb":{"@id":"https:\/\/www.engineernewsnetwork.com\/blog\/springs-constant-force-constant-load\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.engineernewsnetwork.com\/blog\/springs-constant-force-constant-load\/"]}]},{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/springs-constant-force-constant-load\/#primaryimage","url":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2018\/05\/LEESPRING3146-constant-force-springs.jpg","contentUrl":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-content\/uploads\/2018\/05\/LEESPRING3146-constant-force-springs.jpg","width":562,"height":375,"caption":"Constant force springs are a complete spring package offering constant force over the useable range"},{"@type":"BreadcrumbList","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/springs-constant-force-constant-load\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.engineernewsnetwork.com\/blog\/"},{"@type":"ListItem","position":2,"name":"Springs: Constant force &#8211; constant load"}]},{"@type":"WebSite","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/#website","url":"https:\/\/www.engineernewsnetwork.com\/blog\/","name":"Engineer News Network","description":"The ultimate online news and information resource for today's engineer","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.engineernewsnetwork.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-GB"},{"@type":"Person","@id":"https:\/\/www.engineernewsnetwork.com\/blog\/#\/schema\/person\/4477342aea8e299c6a21761e513ea8e1","name":"admin","url":"https:\/\/www.engineernewsnetwork.com\/blog\/author\/admin\/"}]}},"_links":{"self":[{"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/posts\/7649","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/comments?post=7649"}],"version-history":[{"count":2,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/posts\/7649\/revisions"}],"predecessor-version":[{"id":7652,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/posts\/7649\/revisions\/7652"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/media\/7650"}],"wp:attachment":[{"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/media?parent=7649"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/categories?post=7649"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.engineernewsnetwork.com\/blog\/wp-json\/wp\/v2\/tags?post=7649"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}