{"id":2151,"date":"2023-05-12T12:00:00","date_gmt":"2023-05-12T04:00:00","guid":{"rendered":"https:\/\/mccchains.com\/2023\/05\/12\/push-out-force-test-2"},"modified":"2025-08-21T11:56:01","modified_gmt":"2025-08-21T03:56:01","slug":"push-out-force-test","status":"publish","type":"post","link":"https:\/\/mccchains.com\/en\/push-out-force-test","title":{"rendered":"Push Out Force"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Push out force is vital to roller chain reliability, ensuring pins and bushes stay secure under heavy loads. Unlike tensile strength, it has limited international standards, with API SPECIFICATION 7F being the only one. At MCC, every chain undergoes strict push out force testing to guarantee durability and consistent performance.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>What Is Push Out Force?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Push out force refers to the strength required to push the pin from the outer plate or the bush from the inner plate of a roller chain.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Also called <em>pushing force<\/em> or <em>pressing force<\/em><\/li>\n\n\n\n<li>Key factor in roller chain design<\/li>\n\n\n\n<li>Prevents looseness, separation, or breakage during operation<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">If the push out force is insufficient, the chain may loosen, disengage, or fail under load.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Factors That Affect Push Out Force<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The required push out force depends on several factors:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Application:<\/strong> Heavy-duty vs. light-duty usage<\/li>\n\n\n\n<li><strong>Chain size:<\/strong> Larger chains demand higher push out force<\/li>\n\n\n\n<li><strong>Material quality:<\/strong> Stronger steels and treatments increase resistance<\/li>\n\n\n\n<li><strong>Load conditions:<\/strong> Higher operational loads require higher values<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Push Out Force vs. Tensile Strength<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Although both represent strength properties:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Tensile strength<\/strong>: measures the maximum load a chain can withstand before breaking<\/li>\n\n\n\n<li><strong>Push out force<\/strong>: measures the resistance of pins and bushes against loosening<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">#Only <em>tensile strength<\/em> has widely adopted international minimum standards.<br>#The <em>API SPECIFICATION 7F<\/em> Oilfield Chain Standard is currently the only global standard that specifies push out force.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>MCC\u2019s Push Out Force Testing<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"400\" src=\"https:\/\/i0.wp.com\/mccchains.com\/wp-content\/uploads\/2023\/05\/Push-Out-Force-Test.jpg?quality=100&#038;ssl=1\" alt=\"\" class=\"wp-image-4030\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">At MCC, push out force is verified using the same advanced equipment applied for tensile strength tests:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Chain sample is placed on the test machine<\/li>\n\n\n\n<li>Pressure is applied directly on the pin or bush<\/li>\n\n\n\n<li>The force required to push it out is recorded<\/li>\n\n\n\n<li>Data ensures the chain meets design strength and durability requirements<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">This process guarantees that every MCC roller chain is built to withstand demanding applications.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Conclusion: Ensuring Reliable Roller Chains<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Push out force is a critical yet often overlooked factor in chain performance. By performing strict push out force testing, MCC ensures its roller chains deliver <strong>strength, durability, and safety<\/strong> for diverse industrial applications.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Looking for tested and reliable roller chains? <strong>Contact MCC <\/strong>for technical details and custom solutions.<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-outline is-style-outline--1\"><a class=\"wp-block-button__link wp-element-button\">Contact Us<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Discover push out force in roller chains and how MCC testing ensures strength and durability.<\/p>\n","protected":false},"author":5,"featured_media":1531,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[166],"tags":[170,173,174,177,178],"class_list":["post-2151","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-chain-knowledge","tag-roller-chain-knowledge","tag-chain-testing","tag-chain-quality","tag-what-is-leaf-chain","tag-attachment-chain"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/mccchains.com\/wp-content\/uploads\/migra\/blog\/9bb98938eb572d99877486dcd21bfc812a049d50.jpg?quality=100&ssl=1","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/mccchains.com\/en\/wp-json\/wp\/v2\/posts\/2151","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mccchains.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mccchains.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mccchains.com\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/mccchains.com\/en\/wp-json\/wp\/v2\/comments?post=2151"}],"version-history":[{"count":2,"href":"https:\/\/mccchains.com\/en\/wp-json\/wp\/v2\/posts\/2151\/revisions"}],"predecessor-version":[{"id":4034,"href":"https:\/\/mccchains.com\/en\/wp-json\/wp\/v2\/posts\/2151\/revisions\/4034"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mccchains.com\/en\/wp-json\/wp\/v2\/media\/1531"}],"wp:attachment":[{"href":"https:\/\/mccchains.com\/en\/wp-json\/wp\/v2\/media?parent=2151"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mccchains.com\/en\/wp-json\/wp\/v2\/categories?post=2151"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mccchains.com\/en\/wp-json\/wp\/v2\/tags?post=2151"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}