{"id":415865,"date":"2026-07-20T15:06:19","date_gmt":"2026-07-20T07:06:19","guid":{"rendered":"https:\/\/www.usubearings.com\/?p=415865"},"modified":"2026-07-29T11:53:12","modified_gmt":"2026-07-29T03:53:12","slug":"bearing-cage-types-and-materials-how-to-choose-the-right-cage-for-different-bearings","status":"publish","type":"post","link":"https:\/\/www.usubearings.com\/russian\/bearing-cage-types-and-materials-how-to-choose-the-right-cage-for-different-bearings\/","title":{"rendered":"Bearing Cage Types and Materials: How to Choose the Right Cage for Different Bearings"},"content":{"rendered":"<p>When purchasing bearings, many engineers and buyers notice that bearings with similar dimensions may use completely different cages. Some bearings are equipped with steel cages, while others use brass, polyamide, phenolic resin, or even aluminum cages.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-medium wp-image-415867\" src=\"https:\/\/www.usubearings.com\/wp-content\/uploads\/2026\/07\/Bearing-Cage-Types-and-Materials-300x169.png\" alt=\"\" width=\"300\" height=\"169\"><\/p>\n<p>Does a brass cage always perform better than a steel cage? Why do high-speed bearings often use phenolic cages? How should the cage material be selected?<\/p>\n<style id=\"wpforms-css-vars-750\">\n\t\t\t\t#wpforms-750 {\n\t\t\t\t--wpforms-container-padding: 0px;\n--wpforms-container-border-width: 1px;\n--wpforms-container-border-radius: 3px;\n--wpforms-background-color: rgba(0, 0, 0, 0);\n--wpforms-field-size-input-height: 43px;\n--wpforms-field-size-input-spacing: 15px;\n--wpforms-field-size-font-size: 16px;\n--wpforms-field-size-line-height: 19px;\n--wpforms-field-size-padding-h: 14px;\n--wpforms-field-size-checkbox-size: 16px;\n--wpforms-field-size-sublabel-spacing: 5px;\n--wpforms-field-size-icon-size: 1;\n--wpforms-label-size-font-size: 16px;\n--wpforms-label-size-line-height: 19px;\n--wpforms-label-size-sublabel-font-size: 14px;\n--wpforms-label-size-sublabel-line-height: 17px;\n--wpforms-button-size-font-size: 17px;\n--wpforms-button-size-height: 41px;\n--wpforms-button-size-padding-h: 15px;\n--wpforms-button-size-margin-top: 10px;\n--wpforms-container-shadow-size-box-shadow: 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wpforms-field-text\" data-field-id=\"13\"><input type=\"text\" id=\"wpforms-750-field_13\" class=\"wpforms-field-large\" name=\"wpforms[fields][13]\" placeholder=\"\u041f\u0440\u043e\u0434\u0430\u044e\u0449\u0438\u0439 \u0431\u0440\u0435\u043d\u0434\" aria-errormessage=\"wpforms-750-field_13-error\" ><\/div><div id=\"wpforms-750-field_14-container\" class=\"wpforms-field wpforms-field-text\" data-field-id=\"14\"><input type=\"text\" id=\"wpforms-750-field_14\" class=\"wpforms-field-large\" name=\"wpforms[fields][14]\" placeholder=\"\u0420\u0430\u0441\u043f\u043e\u043b\u043e\u0436\u0435\u043d\u0438\u0435\" aria-errormessage=\"wpforms-750-field_14-error\" ><\/div><div id=\"wpforms-750-field_15-container\" class=\"wpforms-field wpforms-field-text wpforms-one-half wpforms-first\" data-field-id=\"15\"><input type=\"text\" id=\"wpforms-750-field_15\" class=\"wpforms-field-large\" name=\"wpforms[fields][15]\" placeholder=\"\u0413\u043e\u0434\u043e\u0432\u043e\u0439 \u043e\u0431\u043e\u0440\u043e\u0442\" aria-errormessage=\"wpforms-750-field_15-error\" ><\/div><div id=\"wpforms-750-field_16-container\" class=\"wpforms-field wpforms-field-text wpforms-one-half\" data-field-id=\"16\"><input type=\"text\" id=\"wpforms-750-field_16\" class=\"wpforms-field-large\" name=\"wpforms[fields][16]\" placeholder=\"\u0420\u0430\u0439\u043e\u043d \u043f\u0440\u043e\u0438\u0441\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u044f\" aria-errormessage=\"wpforms-750-field_16-error\" ><\/div><script>\n\t\t\t\t( function() {\n\t\t\t\t\tconst style = document.createElement( 'style' );\n\t\t\t\t\tstyle.appendChild( document.createTextNode( '#wpforms-750-field_2-container { position: absolute !important; overflow: hidden !important; display: inline !important; height: 1px !important; width: 1px !important; z-index: -1000 !important; padding: 0 !important; } #wpforms-750-field_2-container input { visibility: hidden; } #wpforms-conversational-form-page #wpforms-750-field_2-container label { counter-increment: none; }' ) );\n\t\t\t\t\tdocument.head.appendChild( style );\n\t\t\t\t\tdocument.currentScript?.remove();\n\t\t\t\t} )();\n\t\t\t<\/script><\/div><!-- .wpforms-field-container --><div class=\"wpforms-submit-container\" ><input type=\"hidden\" name=\"wpforms[id]\" value=\"750\"><input type=\"hidden\" name=\"page_title\" value=\"\"><input type=\"hidden\" name=\"page_url\" value=\"https:\/\/www.usubearings.com\/russian\/wp-json\/wp\/v2\/posts\/415865\"><input type=\"hidden\" name=\"url_referer\" value=\"\"><button type=\"submit\" name=\"wpforms[submit]\" id=\"wpforms-submit-750\" class=\"wpforms-submit\" data-alt-text=\"Send\u2026\" data-submit-text=\"submit\" aria-live=\"assertive\" value=\"wpforms-submit\">\u043e\u0442\u043f\u0440\u0430\u0432\u0438\u0442\u044c<\/button><img decoding=\"async\" src=\"https:\/\/www.usubearings.com\/wp-content\/plugins\/wpforms-lite\/assets\/images\/submit-spin.svg\" class=\"wpforms-submit-spinner\" style=\"display: none;\" width=\"26\" height=\"26\" alt=\"\u0417\u0430\u0433\u0440\u0443\u0437\u043a\u0430\"><\/div><input type=\"hidden\" name=\"trp-form-language\" value=\"russian\"\/><\/form><\/div>  <!-- .wpforms-container -->\n<p>This article explains the common bearing cage structures, cage materials, and their applications to help you choose the right bearing for your equipment.<\/p>\n<p>What Is a Bearing Cage?<\/p>\n<p>A bearing cage, also called a bearing retainer, is an important component inside a rolling bearing.<\/p>\n<p>Its primary functions include:<\/p>\n<p>Separating rolling elements<\/p>\n<p>Keeping balls or rollers evenly spaced<\/p>\n<p>Guiding rolling elements during operation<\/p>\n<p>Reducing friction between rolling elements<\/p>\n<p>Improving lubricant circulation<\/p>\n<p>Ensuring stable bearing operation at high speed<\/p>\n<p>Although the cage does not directly carry the main load, its design and material have a significant influence on bearing performance, noise, speed capability, and service life.<\/p>\n<p>Why Is Bearing Cage Material Important?<\/p>\n<p>Different applications require different cage materials.<\/p>\n<p>The ideal cage should provide:<\/p>\n<p>High mechanical strength<\/p>\n<p>Good wear resistance<\/p>\n<p>Low friction<\/p>\n<p>High dimensional stability<\/p>\n<p>Suitable temperature resistance<\/p>\n<p>Reliable lubrication performance<\/p>\n<p>There is no single cage material that is best for every application. The correct choice depends on bearing type, operating speed, load, temperature, lubrication, and working environment.<\/p>\n<p>Common Bearing Cage Materials<\/p>\n<p>1.Pressed Steel Cage<\/p>\n<p>Pressed steel cages are the most widely used cage type for small and medium-sized bearings.<\/p>\n<p>Advantages<\/p>\n<p>Economical<\/p>\n<p>High production efficiency<\/p>\n<p>Good strength<\/p>\n<p>Suitable for mass production<\/p>\n<p>Typical Applications<\/p>\n<p>\u0420\u0430\u0434\u0438\u0430\u043b\u044c\u043d\u044b\u0435 \u0448\u0430\u0440\u0438\u043a\u043e\u043f\u043e\u0434\u0448\u0438\u043f\u043d\u0438\u043a\u0438<\/p>\n<p>Tapered Roller Bearings<\/p>\n<p>Thrust Ball Bearings<\/p>\n<p>Needle Roller Bearings<\/p>\n<p>2.Machined Brass Cage<\/p>\n<p>Brass cages are commonly used in medium and large bearings operating under heavy loads or severe conditions.<\/p>\n<p>Advantages<\/p>\n<p>Excellent strength<\/p>\n<p>Outstanding wear resistance<\/p>\n<p>High temperature capability<\/p>\n<p>Good vibration resistance<\/p>\n<p>Typical Applications<\/p>\n<p>Large Cylindrical Roller Bearings<\/p>\n<p>Spherical Roller Bearings<\/p>\n<p>Large Deep Groove Ball Bearings<\/p>\n<p>Large Angular Contact Bearings<\/p>\n<p>3.Engineering Polymer Cage<\/p>\n<p>Engineering polymer cages are becoming increasingly popular in modern high-speed bearings.<\/p>\n<p>Advantages<\/p>\n<p>Lightweight<\/p>\n<p>Low operating noise<\/p>\n<p>Excellent self-lubricating properties<\/p>\n<p>Low centrifugal force<\/p>\n<p>Suitable for high-speed applications<\/p>\n<p>Typical Applications<\/p>\n<p>Electric Motor Bearings<\/p>\n<p>\u0420\u0430\u0434\u0438\u0430\u043b\u044c\u043d\u044b\u0435 \u0448\u0430\u0440\u0438\u043a\u043e\u043f\u043e\u0434\u0448\u0438\u043f\u043d\u0438\u043a\u0438<\/p>\n<p>Self-aligning Ball Bearings<\/p>\n<p>Needle Roller Bearings<\/p>\n<p>4.Phenolic Resin Cage<\/p>\n<p>Phenolic cages are widely used in high-speed precision bearings.<\/p>\n<p>Advantages<\/p>\n<p>Extremely lightweight<\/p>\n<p>Excellent high-speed performance<\/p>\n<p>Low friction<\/p>\n<p>High dimensional stability<\/p>\n<p>Typical Applications<\/p>\n<p>Machine Tool Spindle Bearings<\/p>\n<p>Precision Angular Contact Bearings<\/p>\n<p>High-Speed CNC Equipment<\/p>\n<p>5.Aluminum Cage<\/p>\n<p>Aluminum cages are mainly used for special bearing applications where lightweight construction is important.<\/p>\n<p>Advantages<\/p>\n<p>Low weight<\/p>\n<p>Good corrosion resistance<\/p>\n<p>Suitable for large bearings<\/p>\n<p>Bearing Cage Structures Used for Different Bearing Types<\/p>\n<p>The cage structure varies depending on bearing type and bearing size.<\/p>\n<p>Bearing Type Common Cage Material<\/p>\n<p>Deep Groove Ball Bearing Pressed Steel, Brass<\/p>\n<p>Self-aligning Ball Bearing Pressed Steel, Polymer, Brass<\/p>\n<p>Cylindrical Roller Bearing Pressed Steel, Polymer, Brass<\/p>\n<p>Double-row Cylindrical Roller Bearing Machined Brass<\/p>\n<p>Spherical Roller Bearing Pressed Steel or Brass<\/p>\n<p>Needle Roller Bearing Pressed Steel, Polymer<\/p>\n<p>Angular Contact Ball Bearing Phenolic, Steel, Brass<\/p>\n<p>Tapered Roller Bearing Pressed Steel or Machined Steel<\/p>\n<p>Thrust Ball Bearing Pressed Steel or Solid Cage<\/p>\n<p>Thrust Roller Bearing Solid Cage<\/p>\n<p>Generally speaking:<\/p>\n<p>Small bearings usually use pressed cages.<\/p>\n<p>Large bearings usually use machined solid cages.<\/p>\n<p>Cage Selection for Common Bearings<\/p>\n<p>\u0420\u0430\u0434\u0438\u0430\u043b\u044c\u043d\u044b\u0435 \u0448\u0430\u0440\u0438\u043a\u043e\u043f\u043e\u0434\u0448\u0438\u043f\u043d\u0438\u043a\u0438<\/p>\n<p>Outside Diameter \u2264 400 mm<\/p>\n<p>Pressed Steel Cage<\/p>\n<p>Pressed Brass Cage<\/p>\n<p>Outside Diameter &gt; 400 mm<\/p>\n<p>Machined Brass Cage<\/p>\n<p>Self-aligning Ball Bearings<\/p>\n<p>D \u2264 200 mm<\/p>\n<p>Steel Cage<\/p>\n<p>Polymer Cage<\/p>\n<p>D &gt; 200 mm<\/p>\n<p>Brass Cage<\/p>\n<p>\u0426\u0438\u043b\u0438\u043d\u0434\u0440\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0440\u043e\u043b\u0438\u043a\u043e\u0432\u044b\u0435 \u043f\u043e\u0434\u0448\u0438\u043f\u043d\u0438\u043a\u0438<\/p>\n<p>D \u2264 400 mm<\/p>\n<p>Steel Cage<\/p>\n<p>Polymer Cage<\/p>\n<p>Brass Cage<\/p>\n<p>D &gt; 400 mm<\/p>\n<p>Steel Solid Cage<\/p>\n<p>Brass Solid Cage<\/p>\n<p>Double-row cylindrical roller bearings generally use machined brass cages.<\/p>\n<p>Spherical Roller Bearings<\/p>\n<p>Symmetrical spherical roller bearings generally use pressed steel cages.<\/p>\n<p>Other spherical roller bearings usually adopt machined brass cages.<\/p>\n<p>Needle Roller Bearings<\/p>\n<p>Needle roller bearings generally use:<\/p>\n<p>Pressed Steel Cage<\/p>\n<p>Aluminum Cage<\/p>\n<p>Engineering Polymer Cage<\/p>\n<p>Angular Contact Ball Bearings<\/p>\n<p>Angular contact bearings use different cages depending on design.<\/p>\n<p>Common materials include:<\/p>\n<p>Phenolic Resin<\/p>\n<p>Steel<\/p>\n<p>Brass<\/p>\n<p>Aluminum<\/p>\n<p>Precision grades such as P5, P4 and P2 generally use phenolic cages because of their excellent high-speed capability.<\/p>\n<p>Tapered Roller Bearings<\/p>\n<p>D \u2264 650 mm<\/p>\n<p>Pressed Steel Cage<\/p>\n<p>D &gt; 650 mm<\/p>\n<p>Machined Steel Cage<\/p>\n<p>Thrust Bearings<\/p>\n<p>Thrust ball bearings generally use:<\/p>\n<p>Pressed Steel Cage<\/p>\n<p>Solid Cage<\/p>\n<p>Thrust roller bearings normally adopt solid cages to ensure sufficient strength under axial loads.<\/p>\n<p>How to Choose the Right Bearing Cage?<\/p>\n<p>When selecting a bearing cage, engineers should consider several important factors.<\/p>\n<p>Operating Speed<\/p>\n<p>High-speed applications generally prefer lightweight cages such as phenolic resin or engineering polymer.<\/p>\n<p>Operating Load<\/p>\n<p>Heavy-load applications usually require machined brass or steel cages.<\/p>\n<p>Operating Temperature<\/p>\n<p>High temperatures may require metallic cages because polymers have temperature limitations.<\/p>\n<p>Bearing Size<\/p>\n<p>Large bearings generally require solid cages to provide greater rigidity.<\/p>\n<p>Noise Requirements<\/p>\n<p>Electric motors and precision equipment often use polymer cages because they reduce operating noise.<\/p>\n<p>Common Bearing Cage Failures<\/p>\n<p>Improper cage selection or poor operating conditions may cause:<\/p>\n<p>Cage Wear<\/p>\n<p>Cage Cracking<\/p>\n<p>Cage Deformation<\/p>\n<p>Cage Fracture<\/p>\n<p>Roller Skewing<\/p>\n<p>Abnormal Noise<\/p>\n<p>Bearing Seizure<\/p>\n<p>These failures often result from poor lubrication, contamination, excessive speed, improper installation, or incorrect bearing selection.<\/p>\n<p>Frequently Asked Questions<\/p>\n<p>Which bearing cage material is the strongest?<\/p>\n<p>Machined brass and steel cages generally provide the highest mechanical strength for heavy-duty applications.<\/p>\n<p>Is a brass cage better than a steel cage?<\/p>\n<p>Not necessarily.<\/p>\n<p>Brass cages are excellent for heavy-duty and high-temperature applications, while steel cages are economical and suitable for most general industrial equipment.<\/p>\n<p>Why do high-speed bearings use phenolic cages?<\/p>\n<p>Phenolic cages are lightweight, generate low centrifugal force, and provide excellent dimensional stability at high rotational speeds.<\/p>\n<p>Are polymer cages suitable for industrial bearings?<\/p>\n<p>Yes.<\/p>\n<p>Engineering polymer cages are widely used in electric motors, pumps, fans, and many high-speed industrial applications.<\/p>\n<p>Can a damaged bearing cage be replaced?<\/p>\n<p>In most cases, replacing only the cage is not recommended. Once the cage has failed, the rolling elements and raceways should also be carefully inspected.<\/p>\n<p>Conclusion<\/p>\n<p>The bearing cage plays an essential role in maintaining stable bearing operation.<\/p>\n<p>Different bearing types require different cage structures and materials depending on speed, load, temperature, lubrication, and application requirements.<\/p>\n<p>Selecting the correct cage material can improve bearing reliability, reduce noise, increase operating speed, and significantly extend service life.<\/p>\n<p>If you are unsure which bearing cage is suitable for your application, consulting an experienced bearing engineer before selection is always recommended.<\/p>\n<p>Contact USU Bearing<\/p>\n<p>Need help selecting the right bearing or cage material?<\/p>\n<p>Our engineering team can provide professional support for:<\/p>\n<p>Bearing Selection<\/p>\n<p>Bearing Application Analysis<\/p>\n<p>OEM Bearing Manufacturing<\/p>\n<p>Bearing Failure Analysis<\/p>\n<p>Technical Consultation<\/p>\n<p>USU Bearings<\/p>\n<p>Professional Bearing Solutions for Global Industry<\/p>","protected":false},"excerpt":{"rendered":"<p>Learn about the most common bearing cage types, cage materials, their advantages, applications, and how to choose the right bearing cage for different working conditions.<\/p>","protected":false},"author":1,"featured_media":415867,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-415865","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/www.usubearings.com\/russian\/wp-json\/wp\/v2\/posts\/415865","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.usubearings.com\/russian\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.usubearings.com\/russian\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.usubearings.com\/russian\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.usubearings.com\/russian\/wp-json\/wp\/v2\/comments?post=415865"}],"version-history":[{"count":4,"href":"https:\/\/www.usubearings.com\/russian\/wp-json\/wp\/v2\/posts\/415865\/revisions"}],"predecessor-version":[{"id":436055,"href":"https:\/\/www.usubearings.com\/russian\/wp-json\/wp\/v2\/posts\/415865\/revisions\/436055"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.usubearings.com\/russian\/wp-json\/wp\/v2\/media\/415867"}],"wp:attachment":[{"href":"https:\/\/www.usubearings.com\/russian\/wp-json\/wp\/v2\/media?parent=415865"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.usubearings.com\/russian\/wp-json\/wp\/v2\/categories?post=415865"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.usubearings.com\/russian\/wp-json\/wp\/v2\/tags?post=415865"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}