{"id":906,"date":"2020-01-07T15:09:10","date_gmt":"2020-01-07T14:09:10","guid":{"rendered":"https:\/\/www.stagnoligears.com\/en\/?post_type=news&#038;p=906"},"modified":"2020-01-08T12:35:12","modified_gmt":"2020-01-08T11:35:12","slug":"thermoplastic-gears-design-directive","status":"publish","type":"news","link":"https:\/\/www.stagnoligears.com\/en\/plastic-gears-news\/thermoplastic-gears-design-directive\/","title":{"rendered":"Thermoplastic gears design directive: in-depth study on VDI 2736."},"content":{"rendered":"<p>The sector of application of plastic gears has grown significantly in the last decade. However, the lack of ISO, DIN or AGMA standards for the analysis of the resistance of technopolymer gears has provided uncertainty on the design methodology; this meant that, for years, the only accepted method for gear design was the German guideline VDI 2545. However, a new <strong>directive for the design of thermoplastic gears<\/strong> was introduced in 2014. This is <strong>VDI 2736 Directive<\/strong>, which outlines a broader guideline consisting of 4 parts:<\/p>\n<ul>\n<li>The first part is available as a draft and covers general recommendations and material properties.<\/li>\n<li>The second and third parts are published in the final version and contain methods for evaluating the resistance of spur gears (second part) and helical gears (third part).<\/li>\n<li>The fourth part defines the measurement and evaluation of the material properties necessary for the resistance analysis.<\/li>\n<\/ul>\n<p>The greatest difficulty for the design of plastic gears is the lack of data: the quantity of variables to be taken into consideration, in fact, is very wide. Not only: these variables increase if we consider the different behaviour of the various types of technopolymer families.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The sector of application of plastic gears has grown significantly in the last decade. However, the lack of ISO, DIN or AGMA standards for the analysis of the resistance of technopolymer gears has provided uncertainty on the design methodology; this meant that, for years, the only accepted method for gear design was the German guideline &hellip; <a href=\"https:\/\/www.stagnoligears.com\/en\/plastic-gears-news\/thermoplastic-gears-design-directive\/\">Continued<\/a><\/p>\n","protected":false},"featured_media":909,"parent":0,"template":"","meta":{"_acf_changed":false},"class_list":["post-906","news","type-news","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Thermoplastic gears design directive: VDI 2736 - Stagnoli EN<\/title>\n<meta name=\"description\" content=\"KISSsoft has now become the international standard for the mechanical gear industry. The software, in fact, offers a valid aid in the integration of the VDI 2736 directive.\" \/>\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.stagnoligears.com\/en\/plastic-gears-news\/thermoplastic-gears-design-directive\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Thermoplastic gears design directive: VDI 2736 - Stagnoli EN\" \/>\n<meta property=\"og:description\" content=\"KISSsoft has now become the international standard for the mechanical gear industry. The software, in fact, offers a valid aid in the integration of the VDI 2736 directive.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.stagnoligears.com\/en\/plastic-gears-news\/thermoplastic-gears-design-directive\/\" \/>\n<meta property=\"og:site_name\" content=\"Stagnoli EN\" \/>\n<meta property=\"article:modified_time\" content=\"2020-01-08T11:35:12+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.stagnoligears.com\/en\/wp-content\/uploads\/sites\/2\/directive-on-the-design-of-thermoplastic-gears.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1490\" \/>\n\t<meta property=\"og:image:height\" content=\"763\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.stagnoligears.com\\\/en\\\/plastic-gears-news\\\/thermoplastic-gears-design-directive\\\/\",\"url\":\"https:\\\/\\\/www.stagnoligears.com\\\/en\\\/plastic-gears-news\\\/thermoplastic-gears-design-directive\\\/\",\"name\":\"Thermoplastic gears design directive: VDI 2736 - Stagnoli EN\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.stagnoligears.com\\\/en\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.stagnoligears.com\\\/en\\\/plastic-gears-news\\\/thermoplastic-gears-design-directive\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.stagnoligears.com\\\/en\\\/plastic-gears-news\\\/thermoplastic-gears-design-directive\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.stagnoligears.com\\\/en\\\/wp-content\\\/uploads\\\/sites\\\/2\\\/directive-on-the-design-of-thermoplastic-gears.png\",\"datePublished\":\"2020-01-07T14:09:10+00:00\",\"dateModified\":\"2020-01-08T11:35:12+00:00\",\"description\":\"KISSsoft has now become the international standard for the mechanical gear industry. 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