{"id":409406,"date":"2026-05-25T17:17:02","date_gmt":"2026-05-25T09:17:02","guid":{"rendered":"https:\/\/www.usubearings.com\/?p=409406"},"modified":"2026-05-26T09:36:39","modified_gmt":"2026-05-26T01:36:39","slug":"what-are-the-differences-between-cc-ca-e-and-mb-cages-in-spherical-roller-bearings-how-to-select-the-right-type","status":"publish","type":"post","link":"https:\/\/www.usubearings.com\/spanish\/what-are-the-differences-between-cc-ca-e-and-mb-cages-in-spherical-roller-bearings-how-to-select-the-right-type\/","title":{"rendered":"What Are the Differences Between CC, CA, E, and MB Cages in Self-aligning Roller Bearings? How to Select the Right Type?"},"content":{"rendered":"

The cage of a bearing is not only the \u201cframework\u201d that separates and holds the rolling elements, but also a key component that directly affects bearing wear resistance, limiting speed, and impact resistance. This article provides a detailed introduction to the differences between various cage structures in Self-aligning Roller Bearings and explains which types are suitable for different equipment applications.<\/p>\n

\"\"<\/p>\n

1. What Is the Core Function of a Bearing Cage?<\/b><\/strong><\/h1>\n

Before discussing specific bearing models, let\u2019s first look at the three core functions of cages in Self-aligning Roller Bearings:<\/p>\n

Separation and Friction Reduction<\/b><\/strong><\/h3>\n

The cage dynamically separates the rolling elements and maintains proper spacing, preventing collisions and surface damage between rollers, thereby significantly reducing friction resistance.<\/p>\n

Uniform Load Distribution<\/b><\/strong><\/h3>\n

The cage guides the rolling elements to distribute evenly, ensuring balanced load distribution during operation and avoiding localized stress concentration.<\/p>\n

Improved Bearing Operation<\/b><\/strong><\/h3>\n

In the unloaded zone of the bearing, the cage effectively guides the rolling elements, preventing destructive sliding or skidding and optimizing overall operating conditions.<\/p>\n

2. Detailed Introduction to Four Main Self-aligning Roller Bearings Cage Structures<\/b><\/strong><\/h1>\n

The cages of spherical roller bearings are mainly divided into two categories: pressed steel cages and machined brass cages. Based on different internal designs, four classic structures have been developed.<\/p>\n

\"\"\"\"<\/p>\n

1. CC Type Bearing: The Balance Between Lightweight Design and High Load Capacity<\/b><\/strong><\/h2>\n

Features<\/b><\/strong><\/h3>\n
    \n
  • Equipped with two window-type pressed steel cages<\/li>\n
  • Inner ring without flanges<\/li>\n
  • Floating guide ring guided by the inner ring<\/li>\n<\/ul>\n

    Models<\/b><\/strong><\/h3>\n

    The standard suffix is C or CC. For large bearings, EC or ECC indicates an optimized internal design with higher load-carrying capacity.<\/p>\n

    2. CA Type Bearing: The Traditional High-Rigidity Solution<\/b><\/strong><\/h2>\n

    Features<\/b><\/strong><\/h3>\n
      \n
    • Uses a one-piece finger-type machined brass cage<\/li>\n
    • Inner ring equipped with locating flanges on both sides<\/li>\n
    • Floating guide ring guided by the inner ring<\/li>\n<\/ul>\n

      Advantages<\/b><\/strong><\/h3>\n

      During bearing installation or maintenance, the flanges on the inner ring securely retain the rollers and prevent them from falling out.<\/p>\n

      Models<\/b><\/strong><\/h3>\n

      The suffix is CA. For large bearings, the ECA suffix indicates significantly upgraded load performance.<\/p>\n

      3. E Type Bearing: The New-Generation High-Efficiency Design<\/b><\/strong><\/h2>\n

      Features<\/b><\/strong><\/h3>\n
        \n
      • Equipped with two window-type pressed steel cages<\/li>\n
      • Inner ring without flanges<\/li>\n
      • Outer ring designed with lubrication groove and three lubrication holes, making grease or oil circulation more convenient<\/li>\n<\/ul>\n

        Guiding Method<\/b><\/strong><\/h3>\n
          \n
        • When bearing bore diameter d \u2264 65 mm, the floating guide ring is guided by the inner ring<\/li>\n
        • When d > 65 mm, the guide ring is guided by the cage<\/li>\n<\/ul>\n

          Performance<\/b><\/strong><\/h3>\n

          All bearings with the E suffix feature optimized internal structures and extremely high load capacity.<\/p>\n

          4. MB Type Bearing: The Industry Expert for Heavy Load and Vibration Resistance<\/b><\/strong><\/h2>\n

          Features<\/b><\/strong><\/h3>\n
            \n
          • Uses two open-type machined brass cages<\/li>\n
          • Inner ring equipped with side flanges and a center flange<\/li>\n<\/ul>\n

            Function<\/b><\/strong><\/h3>\n

            The flanges on the MB type inner ring are mainly designed to retain the rollers during installation and maintenance, rather than guiding the rollers or carrying axial loads.<\/p>\n

            Models<\/b><\/strong><\/h3>\n

            Small and medium-sized bearings usually use the 8MB suffix, while optimized large bearings use the MB suffix.<\/p>\n

            3. Materials and Manufacturing Processes: Pressed Steel vs. Machined Brass<\/b><\/strong><\/h1>\n

            Different manufacturing processes and materials provide bearings with completely different operating characteristics and application suitability.<\/p>\n\n\n\n\n\n
            Cage Type<\/b><\/strong><\/td>\nMain Material<\/b><\/strong><\/td>\nStructure Types<\/b><\/strong><\/td>\nCore Advantages<\/b><\/strong><\/td>\nTypical Applications<\/b><\/strong><\/td>\n<\/tr>\n
            Pressed Steel Cage<\/td>\nHigh-quality carbon steel sheet<\/td>\nCC, E<\/td>\nLightweight, excellent toughness, compact design, beneficial for lubricant flow and retention<\/td>\nCommonly used in small and medium-sized rolling bearings<\/td>\n<\/tr>\n
            Machined Brass Cage<\/td>\nHigh-strength cast brass<\/td>\nCA, MB<\/td>\nExtremely high strength, excellent vibration resistance, low friction coefficient, fast heat dissipation<\/td>\nWidely used in medium, large, and extra-large bearings<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

             <\/p>\n

            4. How to Select the Right Cage Type for Complex Working Conditions?<\/b><\/strong><\/h1>\n

            In practical industrial applications, if the operating environment is relatively stable and free from severe impact loads, CC, CA, E, and MB type bearings can all perform effectively. Selection can then be based on cost considerations and delivery schedules.<\/p>\n

            However, for harsh applications involving severe impact loads \u2014 such as mining vibrating screens, crushers, and heavy-duty cranes \u2014 split cage structure bearings such as MB and E types are strongly recommended.<\/p>\n

            Their excellent vibration resistance and robust structure can effectively prevent cage fracture and ensure continuous equipment operation.<\/p>\n

            Thank you for your attention to Wuxi USU Bearing.<\/p>\n

            With years of experience in the bearing industry, we are committed to providing high-quality, high-reliability bearing products and professional technical solutions. If you have any questions regarding Self-aligning Roller Bearings selection, installation, or lubrication methods, please feel free to contact us for further communication.<\/p>","protected":false},"excerpt":{"rendered":"

            What Equipment Are CC, CA, E, and MB Type Cages for Self-aligning Roller Bearings Suitable For?
            \nWuxi USU Bearing provides an in-depth analysis of the performance characteristics, core functions, and application advantages of different spherical roller bearing cage structures, including pressed steel cages and machined brass cages. This guide also explains how to select the right cage type for complex working conditions such as heavy impact loads, helping customers extend equipment service life and improve operational reliability.<\/p>","protected":false},"author":1,"featured_media":409413,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-409406","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/www.usubearings.com\/spanish\/wp-json\/wp\/v2\/posts\/409406","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.usubearings.com\/spanish\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.usubearings.com\/spanish\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.usubearings.com\/spanish\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.usubearings.com\/spanish\/wp-json\/wp\/v2\/comments?post=409406"}],"version-history":[{"count":3,"href":"https:\/\/www.usubearings.com\/spanish\/wp-json\/wp\/v2\/posts\/409406\/revisions"}],"predecessor-version":[{"id":409414,"href":"https:\/\/www.usubearings.com\/spanish\/wp-json\/wp\/v2\/posts\/409406\/revisions\/409414"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.usubearings.com\/spanish\/wp-json\/wp\/v2\/media\/409413"}],"wp:attachment":[{"href":"https:\/\/www.usubearings.com\/spanish\/wp-json\/wp\/v2\/media?parent=409406"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.usubearings.com\/spanish\/wp-json\/wp\/v2\/categories?post=409406"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.usubearings.com\/spanish\/wp-json\/wp\/v2\/tags?post=409406"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}