{"id":3407,"date":"2025-06-24T14:15:59","date_gmt":"2025-06-24T06:15:59","guid":{"rendered":"https:\/\/machinedwasher.com\/?post_type=product&p=3407"},"modified":"2025-06-24T14:23:05","modified_gmt":"2025-06-24T06:23:05","slug":"crinkle-washer","status":"publish","type":"product","link":"https:\/\/machinedwasher.com\/ja\/products\/crinkle-washer\/","title":{"rendered":"Crinkle Washer Custom Stainless Steel Copper Elastic Locking Wave Spring Washer Curved Washer"},"content":{"rendered":"

What is a Crinkle Washer?<\/strong><\/h3>\n

A\u00a0Crinkle Washer<\/strong>\u00a0(also called a\u00a0Conical Spring Washer<\/strong>\u00a0or\u00a0Multi-Wave Washer<\/strong>) is a type of spring washer with a wavy, undulating design that provides controlled flexibility and tension under compression. Unlike flat washers, its\u00a0crinkled\/curved shape<\/strong>\u00a0allows it to act as a spring, maintaining consistent pressure in bolted joints to prevent loosening from vibration or thermal cycling.<\/p>\n

\n

Specifications of Crinkle Washer<\/strong><\/h3>\n

1. Material<\/strong><\/h4>\n
    \n
  • \n

    Carbon Steel (Grade 65Mn\/1074)<\/strong>\u00a0\u2013 Standard for general applications.<\/p>\n<\/li>\n

  • \n

    Stainless Steel (AISI 304, 316)<\/strong>\u00a0\u2013 Corrosion-resistant for harsh environments.<\/p>\n<\/li>\n

  • \n

    Phosphor Bronze (C51000)<\/strong>\u00a0\u2013 Electrical conductivity and fatigue resistance.<\/p>\n<\/li>\n

  • \n

    Beryllium Copper<\/strong>\u00a0\u2013 High strength and non-sparking properties.<\/p>\n<\/li>\n<\/ul>\n

    2. Surface Treatment<\/strong><\/h4>\n
      \n
    • \n

      Zinc Plating<\/strong>\u00a0\u2013 Basic rust protection (blue\/white zinc).<\/p>\n<\/li>\n

    • \n

      Passivation (Stainless Steel)<\/strong>\u00a0\u2013 Enhances corrosion resistance.<\/p>\n<\/li>\n

    • \n

      Black Oxide<\/strong>\u00a0\u2013 Improves wear resistance and aesthetics.<\/p>\n<\/li>\n

    • \n

      Nickel Plating<\/strong>\u00a0\u2013 For chemical or marine exposure.<\/p>\n<\/li>\n<\/ul>\n

      3. Common Sizes & Standards<\/strong><\/h4>\n
        \n
      • \n

        Inner Diameter (ID)<\/strong>: M3 to M24 (metric) or #4 to 1″ (imperial).<\/p>\n<\/li>\n

      • \n

        Outer Diameter (OD)<\/strong>: Typically 1.5x the bolt size.<\/p>\n<\/li>\n

      • \n

        Thickness<\/strong>: 0.3mm to 3mm, depending on wave count (3\u20136 waves common).<\/p>\n<\/li>\n

      • \n

        Standards<\/strong>: DIN 137B, ISO 6980, or custom designs.<\/p>\n<\/li>\n<\/ul>\n

        \n

        Applications of Crinkle Washers<\/strong><\/h3>\n
          \n
        • \n

          Automotive<\/strong>: Exhaust systems, engine mounts, and suspension components.<\/p>\n<\/li>\n

        • \n

          Electronics<\/strong>: PCB mounting, battery terminals, and heat sinks.<\/p>\n<\/li>\n

        • \n

          Aerospace<\/strong>: Vibration-prone assemblies and avionics.<\/p>\n<\/li>\n

        • \n

          Industrial Machinery<\/strong>: Pumps, compressors, and conveyor systems.<\/p>\n<\/li>\n

        • \n

          Renewable Energy<\/strong>: Solar panel frames and wind turbine bolts.<\/p>\n<\/li>\n<\/ul>\n

          \n

          Excellent Case: Vibration Damping in Electric Vehicle (EV) Battery Packs<\/strong><\/h3>\n

          Scenario<\/strong><\/h4>\n

          An EV manufacturer faces issues with battery module fasteners loosening due to constant road vibrations, risking electrical disconnections or thermal management failures.<\/p>\n

          Solution<\/strong><\/h4>\n
            \n
          1. \n

            Washer Selection<\/strong>:<\/p>\n

              \n
            • \n

              Material<\/strong>:\u00a0Stainless Steel AISI 316<\/strong>\u00a0(resists battery coolant corrosion).<\/p>\n<\/li>\n

            • \n

              Size<\/strong>: M8 crinkle washer (ID 8mm, OD 13mm, 4-wave design).<\/p>\n<\/li>\n

            • \n

              Surface Treatment<\/strong>:\u00a0Passivated<\/strong>\u00a0to prevent galvanic corrosion.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n

            • \n

              Installation<\/strong>:<\/p>\n

                \n
              • \n

                Placed under the nut of each battery module bolt.<\/p>\n<\/li>\n

              • \n

                Compressed during torquing to\u00a0maintain elastic tension<\/strong>\u00a0even as the joint settles.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

                Result<\/strong><\/h4>\n
                  \n
                • \n

                  Eliminates Bolt Loosening<\/strong>: The washer\u2019s spring action compensates for vibration-induced gaps.<\/p>\n<\/li>\n

                • \n

                  Reduces Maintenance<\/strong>: No retorquing needed over 100,000 km of vehicle use.<\/p>\n<\/li>\n

                • \n

                  Improves Safety<\/strong>: Prevents electrical arcing from loose terminals.<\/p>\n<\/li>\n<\/ul>\n

                  Why It\u2019s Ideal<\/strong><\/h4>\n
                    \n
                  • \n

                    Space-Efficient<\/strong>: Thinner than coil spring washers but equally effective.<\/p>\n<\/li>\n

                  • \n

                    Thermal Stability<\/strong>: Maintains tension across -40\u00b0C to 120\u00b0C ranges.<\/p>\n<\/li>\n<\/ul>\n

                    \n

                    Conclusion<\/strong><\/h3>\n

                    Crinkle washers are a cost-effective solution for\u00a0vibration damping, thermal expansion compensation, and anti-loosening<\/strong>\u00a0in critical joints. The EV battery case highlights their role in enhancing reliability in modern engineering.<\/p>","protected":false},"excerpt":{"rendered":"

                    Crinkle Washer Custom Stainless Steel Elastic Locking Wave Spring Washer Curved Washer<\/p>","protected":false},"featured_media":3410,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[36],"product_tag":[1195,821,129,1194,1193,1187,1190,1188,1192,125,801,1186,1189,1197,1196,1191],"class_list":{"0":"post-3407","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-machined-washer","7":"product_tag-car-washers","8":"product_tag-cnc-machined-washer","9":"product_tag-cnc-machining-washer","10":"product_tag-conical-spring-washer","11":"product_tag-curved-spring-washer","12":"product_tag-curved-washer","13":"product_tag-curved-washer-for-bed-frame","14":"product_tag-curved-washer-for-pipe","15":"product_tag-lock-washer","16":"product_tag-machined-washer","17":"product_tag-plastic-washer","18":"product_tag-spring-washer","19":"product_tag-square-curved-washer","20":"product_tag-stainless-steel-washer","21":"product_tag-washers","22":"product_tag-wave-spring-washer","24":"first","25":"instock","26":"shipping-taxable","27":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/machinedwasher.com\/ja\/wp-json\/wp\/v2\/product\/3407","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/machinedwasher.com\/ja\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/machinedwasher.com\/ja\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/machinedwasher.com\/ja\/wp-json\/wp\/v2\/comments?post=3407"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/machinedwasher.com\/ja\/wp-json\/wp\/v2\/media\/3410"}],"wp:attachment":[{"href":"https:\/\/machinedwasher.com\/ja\/wp-json\/wp\/v2\/media?parent=3407"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/machinedwasher.com\/ja\/wp-json\/wp\/v2\/product_brand?post=3407"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/machinedwasher.com\/ja\/wp-json\/wp\/v2\/product_cat?post=3407"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/machinedwasher.com\/ja\/wp-json\/wp\/v2\/product_tag?post=3407"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}