{"id":4110,"date":"2026-02-14T10:16:02","date_gmt":"2026-02-14T10:16:02","guid":{"rendered":"https:\/\/yuwei-bearing.com\/?p=4110"},"modified":"2026-02-14T10:16:02","modified_gmt":"2026-02-14T10:16:02","slug":"ru-series-cross-roller-bearing-technical-guide","status":"publish","type":"post","link":"https:\/\/yuwei-bearing.com\/zh\/ru-series-cross-roller-bearing-technical-guide\/","title":{"rendered":"RU Series Cross Roller Bearings: Precision &#038; Performance"},"content":{"rendered":"<p data-start=\"694\" data-end=\"992\">\u8fd9 <a href=\"https:\/\/yuwei-bearing.com\/zh\/product\/ru-cross-roller-bearing-integrated-inner-outer-ring-type\/\"><strong data-start=\"698\" data-end=\"732\">RU Series Cross Roller Bearing<\/strong><\/a> belongs to the category of <strong data-start=\"760\" data-end=\"785\">cross roller bearings<\/strong>. These bearings are perfect for applications that require <strong data-start=\"844\" data-end=\"907\">high precision assembly, smooth rotation, and stable torque<\/strong>, such as <strong data-start=\"917\" data-end=\"989\">precision index tables, optical devices, machine tools, and robotics<\/strong>.<\/p>\n<p data-start=\"994\" data-end=\"1367\">The RU model features an <strong data-start=\"1019\" data-end=\"1064\">integrated inner and outer ring structure<\/strong>, with <strong data-start=\"1071\" data-end=\"1103\">mounting holes on both rings<\/strong>, eliminating the need for separate housings or flanges. Thanks to its <strong data-start=\"1174\" data-end=\"1200\">compact bearing design<\/strong>, the RU Series Cross Roller Bearing offers <strong data-start=\"1244\" data-end=\"1325\">multi-directional load handling capabilities and superior rotational accuracy<\/strong> for <strong data-start=\"1330\" data-end=\"1364\">industrial automation bearings<\/strong>.<\/p>\n<h2 data-start=\"1374\" data-end=\"1420\">Precision Engineering: The Core Advantage<\/h2>\n<p data-start=\"1422\" data-end=\"1722\">\u8fd9 <strong data-start=\"1426\" data-end=\"1448\">precision bearings<\/strong> in the RU series provide <strong data-start=\"1474\" data-end=\"1509\">exceptional rotational accuracy<\/strong> due to their <strong data-start=\"1523\" data-end=\"1552\">integrated bearing system<\/strong>. Bearings can be <strong data-start=\"1570\" data-end=\"1607\">directly installed onto equipment<\/strong> without affecting internal alignment, since both outer and inner rings come with <strong data-start=\"1689\" data-end=\"1719\">pre-drilled mounting holes<\/strong>.<\/p>\n<p data-start=\"1724\" data-end=\"1923\">This design reduces <strong data-start=\"1744\" data-end=\"1763\">assembly errors<\/strong> and prevents performance changes caused by mounting stress, making it an ideal choice for <strong data-start=\"1854\" data-end=\"1878\">robotic arm bearings<\/strong> \u548c <strong data-start=\"1883\" data-end=\"1920\">high-load industrial applications<\/strong>.<\/p>\n<h2 data-start=\"1930\" data-end=\"1976\">Load Capacity and Application Versatility<\/h2>\n<p data-start=\"1978\" data-end=\"2228\">\u8fd9 <strong data-start=\"1982\" data-end=\"2007\">crossed roller design<\/strong> of the RU Series Cross Roller Bearing allows it to support <strong data-start=\"2067\" data-end=\"2117\">axial, radial, and moment loads simultaneously<\/strong>. Cylindrical rollers are arranged at <strong data-start=\"2155\" data-end=\"2169\">90\u00b0 angles<\/strong>, providing <strong data-start=\"2181\" data-end=\"2225\">maximum load dispersion and contact area<\/strong>.<\/p>\n<p data-start=\"2230\" data-end=\"2258\">Examples of load capacity:<\/p>\n<ul data-start=\"2260\" data-end=\"2434\">\n<li data-start=\"2260\" data-end=\"2348\">\n<p data-start=\"2262\" data-end=\"2348\">RU66 (35 mm ID, 95 mm OD): up to <strong data-start=\"2295\" data-end=\"2318\">22.3 kN static load<\/strong> \u548c <strong data-start=\"2323\" data-end=\"2346\">17.5 kN radial load<\/strong><\/p>\n<\/li>\n<li data-start=\"2349\" data-end=\"2434\">\n<p data-start=\"2351\" data-end=\"2434\">RU445 and larger models: up to <strong data-start=\"2382\" data-end=\"2404\">473 kN static load<\/strong> \u548c <strong data-start=\"2409\" data-end=\"2432\">222 kN dynamic load<\/strong><\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2436\" data-end=\"2716\">Thanks to this <strong data-start=\"2451\" data-end=\"2488\">efficient load-bearing capability<\/strong>, a single <strong data-start=\"2499\" data-end=\"2533\">RU Series Cross Roller <a href=\"https:\/\/en.wikipedia.org\/wiki\/Rolling-element_bearing\" rel=\"nofollow noopener\" target=\"_blank\">\u8f74\u627f<\/a><\/strong> can replace multiple bearings, reducing <strong data-start=\"2574\" data-end=\"2613\">system size, complexity, and weight<\/strong>. It is especially useful for <strong data-start=\"2643\" data-end=\"2660\">rotary tables<\/strong> \u548c <strong data-start=\"2665\" data-end=\"2688\">precision machinery<\/strong> in industrial automation.<\/p>\n<h2 data-start=\"2723\" data-end=\"2751\">Lifespan and Durability<\/h2>\n<p data-start=\"2753\" data-end=\"2902\">The RU Series Cross Roller Bearing is made from <strong data-start=\"2801\" data-end=\"2838\">SUJ2 hardened bearing-grade steel<\/strong> or <strong data-start=\"2842\" data-end=\"2874\">stainless-steel alternatives<\/strong> for corrosion resistance.<\/p>\n<ul data-start=\"2904\" data-end=\"3114\">\n<li data-start=\"2904\" data-end=\"3010\">\n<p data-start=\"2906\" data-end=\"3010\"><strong data-start=\"2906\" data-end=\"2964\">Heat-treated and precision-ground raceways and rollers<\/strong> ensure <strong data-start=\"2972\" data-end=\"3008\">wear resistance and low friction<\/strong><\/p>\n<\/li>\n<li data-start=\"3011\" data-end=\"3114\">\n<p data-start=\"3013\" data-end=\"3114\">Bearings provide <strong data-start=\"3030\" data-end=\"3071\">smooth operation over extended cycles<\/strong> when lubricated and protected with seals<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"3116\" data-end=\"3262\">These features increase <strong data-start=\"3140\" data-end=\"3160\">bearing lifespan<\/strong> and make the RU series ideal for <strong data-start=\"3194\" data-end=\"3259\">precision index tables, robotic arms, and automated equipment<\/strong>.<\/p>\n<h2 data-start=\"3269\" data-end=\"3312\">Materials and Manufacturing Excellence<\/h2>\n<p data-start=\"3314\" data-end=\"3436\">The materials in <strong data-start=\"3331\" data-end=\"3366\">RU Series Cross Roller Bearings<\/strong> are chosen for <strong data-start=\"3382\" data-end=\"3433\">rigidity, dimensional stability, and durability<\/strong>.<\/p>\n<ul data-start=\"3438\" data-end=\"3617\">\n<li data-start=\"3438\" data-end=\"3515\">\n<p data-start=\"3440\" data-end=\"3515\"><strong data-start=\"3440\" data-end=\"3467\">Standard steel bearings<\/strong>: suitable for typical industrial environments<\/p>\n<\/li>\n<li data-start=\"3516\" data-end=\"3617\">\n<p data-start=\"3518\" data-end=\"3617\"><strong data-start=\"3518\" data-end=\"3546\">Stainless steel bearings<\/strong>: ideal for <strong data-start=\"3558\" data-end=\"3615\">corrosive environments, cleanrooms, or vacuum systems<\/strong><\/p>\n<\/li>\n<\/ul>\n<p data-start=\"3619\" data-end=\"3739\">The compact, integrated design ensures <strong data-start=\"3658\" data-end=\"3682\">reliable performance<\/strong> in both <strong data-start=\"3691\" data-end=\"3736\">high-load and high-precision applications<\/strong>.<\/p>\n<h2 data-start=\"3746\" data-end=\"3807\">Selection Principles: How to Choose the Right RU Bearing<\/h2>\n<p data-start=\"3809\" data-end=\"3887\">When selecting a <strong data-start=\"3826\" data-end=\"3860\">RU Series <a href=\"https:\/\/yuwei-bearing.com\/zh\/cross-roller-bearing\/\">\u4ea4\u53c9\u6eda\u5b50\u8f74\u627f<\/a><\/strong>, consider the following:<\/p>\n<ol data-start=\"3889\" data-end=\"4412\">\n<li data-start=\"3889\" data-end=\"3995\">\n<p data-start=\"3892\" data-end=\"3995\"><strong data-start=\"3892\" data-end=\"3916\">Rotational Accuracy:<\/strong> For applications requiring <strong data-start=\"3944\" data-end=\"3971\">high precision bearings<\/strong>, choose the RU series<\/p>\n<\/li>\n<li data-start=\"3996\" data-end=\"4115\">\n<p data-start=\"3999\" data-end=\"4115\"><strong data-start=\"3999\" data-end=\"4025\">Load Type &amp; Direction:<\/strong> Ideal for <strong data-start=\"4036\" data-end=\"4064\">multi-directional forces<\/strong> in <strong data-start=\"4068\" data-end=\"4092\">robotic arm bearings<\/strong> or <strong data-start=\"4096\" data-end=\"4113\">rotary tables<\/strong><\/p>\n<\/li>\n<li data-start=\"4116\" data-end=\"4216\">\n<p data-start=\"4119\" data-end=\"4216\"><strong data-start=\"4119\" data-end=\"4144\">Mounting Constraints:<\/strong> Built-in mounting holes simplify installation, reducing time and cost<\/p>\n<\/li>\n<li data-start=\"4217\" data-end=\"4298\">\n<p data-start=\"4220\" data-end=\"4298\"><strong data-start=\"4220\" data-end=\"4241\">Space Efficiency:<\/strong> Compact bearing design is ideal where space is limited<\/p>\n<\/li>\n<li data-start=\"4299\" data-end=\"4412\">\n<p data-start=\"4302\" data-end=\"4412\"><strong data-start=\"4302\" data-end=\"4330\">Application Environment:<\/strong> Choose material suited for <strong data-start=\"4358\" data-end=\"4410\">corrosive, clean, or high-temperature conditions<\/strong><\/p>\n<\/li>\n<\/ol>\n<h2 data-start=\"4419\" data-end=\"4434\">\u7ed3\u8bba<\/h2>\n<p data-start=\"4436\" data-end=\"4672\">\u8fd9 <strong data-start=\"4440\" data-end=\"4474\">RU Series Cross Roller Bearing<\/strong> provides <strong data-start=\"4484\" data-end=\"4555\">high precision, superior load capacity, and long-lasting durability<\/strong> in a compact design. It is a <strong data-start=\"4585\" data-end=\"4669\">top choice for engineers in modern automation, robotics, and precision machinery<\/strong>.<\/p>\n<p data-start=\"4674\" data-end=\"4999\">These bearings are perfect for applications where <strong data-start=\"4724\" data-end=\"4795\">stable torque, multi-directional load handling, and smooth rotation<\/strong> are critical. The <strong data-start=\"4814\" data-end=\"4862\">integrated design and high-quality materials<\/strong> ensure <strong data-start=\"4870\" data-end=\"4918\">consistent performance and long service life<\/strong>, making them ideal for <strong data-start=\"4942\" data-end=\"4996\">industrial automation and robotic arm applications<\/strong>.<\/p>","protected":false},"excerpt":{"rendered":"<p>The RU Series Cross Roller Bearing belongs to the category of cross roller bearings. These bearings are perfect for applications that require high precision assembly, smooth rotation, and stable torque, such as precision index tables, optical devices, machine tools, and robotics. The RU model features an integrated inner and outer ring structure, with mounting holes [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4175,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4110","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/yuwei-bearing.com\/zh\/wp-json\/wp\/v2\/posts\/4110","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yuwei-bearing.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yuwei-bearing.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yuwei-bearing.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yuwei-bearing.com\/zh\/wp-json\/wp\/v2\/comments?post=4110"}],"version-history":[{"count":5,"href":"https:\/\/yuwei-bearing.com\/zh\/wp-json\/wp\/v2\/posts\/4110\/revisions"}],"predecessor-version":[{"id":4176,"href":"https:\/\/yuwei-bearing.com\/zh\/wp-json\/wp\/v2\/posts\/4110\/revisions\/4176"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yuwei-bearing.com\/zh\/wp-json\/wp\/v2\/media\/4175"}],"wp:attachment":[{"href":"https:\/\/yuwei-bearing.com\/zh\/wp-json\/wp\/v2\/media?parent=4110"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yuwei-bearing.com\/zh\/wp-json\/wp\/v2\/categories?post=4110"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yuwei-bearing.com\/zh\/wp-json\/wp\/v2\/tags?post=4110"}],"curies":[{"name":"\u53ef\u6e7f\u6027\u7c89\u5242","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}