{"id":3592,"date":"2025-07-15T12:01:52","date_gmt":"2025-07-15T04:01:52","guid":{"rendered":"https:\/\/www.lispring.com\/?p=3592"},"modified":"2025-07-22T10:35:22","modified_gmt":"2025-07-22T02:35:22","slug":"what-is-the-difference-between-a-circlip-and-a-snap-ring","status":"publish","type":"post","link":"https:\/\/wp.lispring.com\/zh\/what-is-the-difference-between-a-circlip-and-a-snap-ring\/","title":{"rendered":"\u5361\u7c27\u548c\u5361\u73af\u6709\u4ec0\u4e48\u533a\u522b"},"content":{"rendered":"

Want to know the difference between circlip\u00a0and \u5361\u73af<\/a><\/strong>? circlip\u00a0and snap rings are widely used in the mechanical field, and each plays a different role and function. There are also differences between the two. This article brings you a complete explanation of snap rings and circlip, from uses, differences, measurements to installation guides. All are introduced in detail. Users in need should not miss it!<\/p>\n

\u4ec0\u4e48\u662f\u5361\u73af\uff1f<\/h3>\n

A snap ring, also known as a snap ring, a fixing ring, or a circlip ring, is a fastener used to limit the axial movement of a part. It is a metal ring that is installed in a shaft groove or a hole groove to fix the position of gears, bearings, pins, pulleys and other parts.<\/p>\n

Common types include:<\/strong><\/p>\n

    \n
  1. snap rings for shafts (external snap rings)<\/li>\n
  2. snap rings for holes (internal snap rings)<\/li>\n
  3. Wave snap rings, elastic snap rings, E-type snap rings, etc.<\/li>\n<\/ol>\n

    snap rings can be divided into open and closed types according to the installation position and usage method. They are widely used in machinery, electronics, automobiles, aerospace and other equipment.<\/p>\n

    \"earlessretainingringmanufacr<\/p>\n

    What is a spring circlip?<\/h3>\n

    A spring circlip is a type of circlip made of elastic steel strip with elastic grip, which is used to fix parts in shafts or holes. Its structural feature is an open \u8bbe\u8ba1<\/a> that clamps the workpiece or the slot by elastic force.<\/p>\n

    Common spring retainers include:<\/strong><\/p>\n

      \n
    1. Open spring retainers (for shafts)<\/li>\n
    2. Closed spring retainers (for holes)<\/li>\n
    3. Wave spring retainers, S-shaped retainers, etc.<\/li>\n<\/ol>\n

      Spring retainers are often used in scenarios where space is limited and frequent assembly and disassembly is required, and are easy to disassemble and reuse.<\/p>\n

      What is the difference between a spring snap ring\u00a0and a spring snap ring?<\/h3>\n\n\n\n\n\n\n\n\n\n
      Comparison Item<\/strong><\/td>\n\u5361\u73af<\/strong><\/td>\nSpring Circlip<\/strong><\/td>\n<\/tr>\n
      Structure Type<\/td>\nMostly rigid open rings with lugs or teeth<\/td>\nMade of elastic steel strip with spring force<\/td>\n<\/tr>\n
      Installation Method<\/td>\nRequires fitting into shaft or bore groove<\/td>\nClamps directly using elastic tension<\/td>\n<\/tr>\n
      Dependency on Elasticity<\/td>\nRigid structure, not dependent on spring force<\/td>\nRelies on its spring elasticity to stay in place<\/td>\n<\/tr>\n
      \u53ef\u91cd\u7528\u6027<\/td>\nOften one-time use or limited reuse<\/td>\nHighly reusable and easy to remove\/install<\/td>\n<\/tr>\n
      \u5178\u578b\u5e94\u7528<\/td>\nHeavy-duty, high-strength axial locking<\/td>\nLight-load, precision or frequently disassembled parts<\/td>\n<\/tr>\n
      Cost and Availability<\/td>\nLower cost, widely standardized<\/td>\nSlightly higher cost, sometimes customized<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      What is the purpose of snap rings?<\/h3>\n

      snap rings are mainly used in the following aspects:<\/p>\n

        \n
      1. Prevent axial displacement:<\/strong> limit the sliding of parts in shafts or holes;<\/li>\n
      2. Positioning function:<\/strong> limit the installation position of components in assembly;<\/li>\n
      3. Avoid loosening:<\/strong> combine with bearings and gears to prevent disengagement;<\/li>\n
      4. Simplify structure:<\/strong> replace nuts, key pins and other structures to reduce the number of parts;<\/li>\n
      5. Save space:<\/strong> suitable for mechanical structures with limited axial space.<\/li>\n<\/ol>\n

        What is the purpose of circlip?<\/h3>\n

        circlip\u00a0are widely used in the following scenarios due to their light weight, elasticity and convenience:<\/p>\n

          \n
        1. Small mechanical assembly:<\/strong> such as motors, printers, and electronic locks;<\/li>\n
        2. Repeated disassembly and assembly structures:<\/strong> systems that require regular maintenance or replacement of parts;<\/li>\n
        3. Fixed precision parts:<\/strong> such as sensor and bearing assembly;<\/li>\n
        4. Light load position locking:<\/strong> keep the component position but do not bear heavy loads;<\/li>\n
        5. Compact electronic devices:<\/strong> save installation space and simple assembly structure.<\/li>\n<\/ol>\n

          \u5982\u4f55\u4f7f\u7528\u5361\u73af\uff1f<\/h3>\n
            \n
          1. Prepare the snap ring\u00a0pliers:<\/strong> select the appropriate inner\/outer caliper according to the size of the snap ring;<\/li>\n
          2. Find the slot:<\/strong> determine the direction and depth of the slot at the installation location;<\/li>\n
          3. Expand or compress the snap ring:<\/strong> open or close the snap ring\u00a0opening with the snap ring\u00a0pliers;<\/li>\n
          4. Put it into the slot slowly:<\/strong> make sure the edge of the snap ring\u00a0fits the slot wall and is fully embedded;<\/li>\n
          5. Check for firmness:<\/strong> turn it to confirm whether it is clamped and does not slide.<\/li>\n<\/ol>\n

            How to use circlip?<\/h3>\n
              \n
            1. Select the appropriate size:<\/strong> the inner or outer diameter of the snap ring\u00a0must match the shaft or hole accurately;<\/li>\n
            2. Press it in by hand or with snap ring\u00a0pliers:<\/strong> some small specifications can be installed directly with fingers;<\/li>\n
            3. Align the slot or accessory position:<\/strong> the snap ring\u00a0should just fall into the designed groove;<\/li>\n
            4. Check for fit:<\/strong> the elastic force should make it automatically return to its position and clamp the component.<\/li>\n<\/ol>\n

              How do I measure a snap ring?<\/h3>\n

              The following dimensions are required when measuring a snap ring:<\/p>\n

                \n
              1. Outer diameter (OD):<\/strong> the maximum outer diameter of the overall snap ring<\/li>\n
              2. Inner diameter (ID):<\/strong> the inner ring diameter at the opening (some designs do not have it)<\/li>\n
              3. Thickness (T):<\/strong> \u6750\u6599<\/a> thickness, which affects assembly accuracy<\/li>\n
              4. Opening spacing:<\/strong> opening width, which affects the selection of clamps and installation strength<\/li>\n
              5. Slot width and depth:<\/strong> ensure that the snap ring\u00a0is fully embedded and measure the slot data at the use position<\/li>\n<\/ol>\n

                Usually use a vernier caliper for accuracy measurement.<\/p>\n

                How to measure spring circlips?<\/h3>\n

                Similar to snap rings, spring circlips need to measure the following dimensions:<\/p>\n

                  \n
                1. Natural inner diameter (ID):<\/strong> the inner diameter of the circlip when not installed<\/li>\n
                2. Expanded outer diameter (OD):<\/strong> the maximum installation diameter that can be covered under elastic state<\/li>\n
                3. Thickness (T):<\/strong> determines the elastic strength and installation groove matching accuracy<\/li>\n
                4. Material and hardness:<\/strong> usually spring steel, the hardness of the marking affects the elasticity and fatigue life<\/li>\n<\/ol>\n

                  If used for custom structures, the width and depth of the installation groove must also be measured.<\/p>\n

                  How to remove a snap ring\u00a0without a hole?<\/h3>\n

                  Some snap rings, such as E-rings and C-rings without holes, cannot be removed by traditional calipers. The following methods can be used:<\/p>\n

                    \n
                  1. Use a small screwdriver to pry open the opening:<\/strong> slowly lift one end to make it pop out;<\/li>\n
                  2. Compression clamp assistance:<\/strong> Use a compression clamp to assist in pushing open the retaining ring slot;<\/li>\n
                  3. Use a hook tool:<\/strong> hang one side of the snap ring\u00a0and pull it out;<\/li>\n
                  4. Heat shrinkage and expansion method (limited to metal shafts):<\/strong> slightly heat the shaft to loosen the snap ring\u00a0and then remove it;<\/li>\n
                  5. Be careful to prevent rebound and injury:<\/strong> it is recommended to wear gloves and goggles when operating.<\/li>\n<\/ol>\n

                    How to remove a spring snap ring?<\/h3>\n

                    circlip\u00a0can generally be removed by the following methods:<\/p>\n

                      \n
                    1. Use needle-nose pliers or snap ring\u00a0pliers:<\/strong> clamp the opening part of the snap ring\u00a0and slowly pull it away;<\/li>\n
                    2. Compression snap ring:<\/strong> Use a screwdriver to gently push the center edge of the snap ring\u00a0to make it pop out;<\/li>\n
                    3. Hole snap ring:<\/strong> can be inserted into the two holes of the snap ring\u00a0opening and pulled out;<\/li>\n
                    4. Pay attention to storage:<\/strong> snap rings are elastic and easy to bounce off, please store them in a tray.<\/li>\n<\/ol>\n

                      \u5982\u4f55\u5b89\u88c5\u5361\u73af\uff1f<\/h3>\n
                        \n
                      1. Prepare snap rings and pliers of corresponding sizes;<\/li>\n
                      2. Open\/compress the snap ring;<\/li>\n
                      3. Align the shaft groove or hole groove and slowly insert it;<\/li>\n
                      4. Release the pliers and confirm that it is completely fitted to the bottom of the groove;<\/li>\n
                      5. After completion, turn the component to test the firmness.<\/li>\n<\/ol>\n

                        How to install circlip?<\/h3>\n
                          \n
                        1. Confirm that the mounting surface is clean and free of burrs;<\/li>\n
                        2. Use your fingers or snap ring\u00a0pliers to expand the snap ring\u00a0opening;<\/li>\n
                        3. Insert the snap ring\u00a0into the mounting groove and it will automatically return to its original position when you release it;<\/li>\n
                        4. Check whether the elasticity is close to the bottom of the groove and cannot be loose or jump out.<\/li>\n<\/ol>\n

                          Comparative analysis of circlip\u00a0and snap rings<\/h3>\n\n\n\n\n\n\n\n\n\n\n
                          \u7279\u70b9<\/strong><\/td>\n\u5361\u73af<\/strong><\/td>\nSpring Circlip<\/strong><\/td>\n<\/tr>\n
                          Installation Difficulty<\/td>\nMedium (requires snap ring pliers)<\/td>\nLower (some sizes can be installed by hand)<\/td>\n<\/tr>\n
                          Repeat Installation<\/td>\nLimited<\/td>\nHigh repeatability<\/td>\n<\/tr>\n
                          \u6750\u6599\u7279\u6027<\/td>\nHardened steel, rigid<\/td>\nSpring steel, elastic<\/td>\n<\/tr>\n
                          Preferred Use Cases<\/td>\nHigh-load locking, critical parts<\/td>\nFrequent maintenance, tight space applications<\/td>\n<\/tr>\n
                          \u8d1f\u8f7d\u80fd\u529b<\/td>\n\u9ad8<\/td>\nModerate to low<\/td>\n<\/tr>\n
                          \u7a7a\u95f4\u8981\u6c42<\/td>\nRequires accurate grooves<\/td>\nMore tolerance to groove dimension<\/td>\n<\/tr>\n
                          \u8d39\u7528<\/td>\nLower<\/td>\nSlightly higher (for precision spring clips)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                          \u7ed3\u8bba<\/h3>\n

                          Although snap rings and spring retainers have similar functions, they have their own advantages and disadvantages in terms of structural form, application occasions, installation method and load-bearing capacity. If you pursue structural stability and high-load fixation, snap rings are more suitable. If you focus on installation convenience and repeated disassembly needs, spring retainers have more advantages.<\/p>\n

                          Reasonable selection, correct measurement, and standardized installation will significantly improve assembly efficiency and product performance. For equipment that requires frequent maintenance, reusable spring retainers are particularly suitable; for key mechanical connections, snap rings are still a reliable choice.<\/p>","protected":false},"excerpt":{"rendered":"

                          Want to know the difference between circlip\u00a0and snap rings? circlip\u00a0and snap rings are widely used in the mechanical field, and each plays a different role and function. There are also differences between the two. This article brings you a complete explanation of snap rings and circlip, from uses, differences, measurements to installation guides. All are […]<\/p>","protected":false},"author":1,"featured_media":3640,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[72,76],"tags":[84,80],"acf":[],"_links":{"self":[{"href":"https:\/\/wp.lispring.com\/zh\/wp-json\/wp\/v2\/posts\/3592"}],"collection":[{"href":"https:\/\/wp.lispring.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.lispring.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.lispring.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.lispring.com\/zh\/wp-json\/wp\/v2\/comments?post=3592"}],"version-history":[{"count":0,"href":"https:\/\/wp.lispring.com\/zh\/wp-json\/wp\/v2\/posts\/3592\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wp.lispring.com\/zh\/wp-json\/wp\/v2\/media\/3640"}],"wp:attachment":[{"href":"https:\/\/wp.lispring.com\/zh\/wp-json\/wp\/v2\/media?parent=3592"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.lispring.com\/zh\/wp-json\/wp\/v2\/categories?post=3592"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.lispring.com\/zh\/wp-json\/wp\/v2\/tags?post=3592"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}