{"id":3746,"date":"2025-07-23T11:43:44","date_gmt":"2025-07-23T03:43:44","guid":{"rendered":"https:\/\/machinedwasher.com\/?post_type=product&p=3746"},"modified":"2025-07-23T14:53:51","modified_gmt":"2025-07-23T06:53:51","slug":"finger-spring-washer","status":"publish","type":"product","link":"https:\/\/machinedwasher.com\/pl\/products\/finger-spring-washer\/","title":{"rendered":"Custom Finger Spring Washer Superior Stainless Steel Finger Disc Springs Washer"},"content":{"rendered":"

What is a Finger Spring Washer?<\/strong><\/h2>\n

A\u00a0finger spring washer<\/strong>, also known as a\u00a0finger washer<\/strong>\u00a0or\u00a0spring finger washer<\/strong>, is a type of spring washer designed with multiple protruding “fingers” that provide controlled spring tension and vibration resistance. These washers are used to maintain preload, absorb shock, and compensate for thermal expansion in bolted assemblies. The fingers act as independent springs, allowing for even load distribution and flexibility under dynamic conditions.<\/p>\n

\n

Materials<\/strong><\/h2>\n

Finger spring washers are manufactured from various high-performance materials to suit different environmental and mechanical requirements:<\/p>\n

    \n
  • \n

    Carbon Steel (SAE 1070\/1095)<\/strong>\u00a0\u2013 Offers high strength and durability for general-purpose applications.<\/p>\n<\/li>\n

  • \n

    Stainless Steel (AISI 302\/304\/316)<\/strong>\u00a0\u2013 Provides excellent corrosion resistance, making it ideal for marine, chemical, and food-processing industries.<\/p>\n<\/li>\n

  • \n

    Phosphor Bronze (C51000\/C52100)<\/strong>\u00a0\u2013 Used in electrical applications due to its conductivity and resistance to fatigue.<\/p>\n<\/li>\n

  • \n

    Beryllium Copper (C17200)<\/strong>\u00a0\u2013 Combines high strength with corrosion resistance, often used in aerospace and defense.<\/p>\n<\/li>\n

  • \n

    Inconel (X750\/718)<\/strong>\u00a0\u2013 Suitable for extreme temperatures and high-stress environments like jet engines and nuclear reactors.<\/p>\n<\/li>\n<\/ul>\n

    \n

    Surface Treatments<\/strong><\/h2>\n

    To enhance performance and longevity, finger spring washers undergo various surface treatments:<\/p>\n

      \n
    • \n

      Zinc Plating (Yellow\/Blue\/Black Zinc)<\/strong>\u00a0\u2013 Improves corrosion resistance and provides a decorative finish.<\/p>\n<\/li>\n

    • \n

      Passivation (Stainless Steel)<\/strong>\u00a0\u2013 Removes free iron particles to enhance rust resistance.<\/p>\n<\/li>\n

    • \n

      Phosphate Coating (Manganese\/Zinc Phosphate)<\/strong>\u00a0\u2013 Increases wear resistance and lubricity.<\/p>\n<\/li>\n

    • \n

      Nickel Plating<\/strong>\u00a0\u2013 Offers a hard, corrosion-resistant surface for harsh environments.<\/p>\n<\/li>\n

    • \n

      Black Oxide<\/strong>\u00a0\u2013 Provides mild corrosion protection and reduces light reflection.<\/p>\n<\/li>\n<\/ul>\n

      \n

      Specifications<\/strong><\/h2>\n

      Finger spring washers come in a range of sizes and specifications to fit different applications:<\/p>\n

        \n
      • \n

        Inner Diameter (ID):<\/strong>\u00a02mm to 100mm<\/p>\n<\/li>\n

      • \n

        Outer Diameter (OD):<\/strong>\u00a05mm to 120mm<\/p>\n<\/li>\n

      • \n

        Thickness:<\/strong>\u00a00.2mm to 3mm<\/p>\n<\/li>\n

      • \n

        Number of Fingers:<\/strong>\u00a04 to 24 (varies based on load requirements)<\/p>\n<\/li>\n

      • \n

        Load Capacity:<\/strong>\u00a05N to 500N per finger (depending on material and thickness)<\/p>\n<\/li>\n<\/ul>\n

        \n

        Applications<\/strong><\/h2>\n

        Finger spring washers are widely used in industries where vibration damping, thermal expansion compensation, and secure fastening are critical:<\/p>\n

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        • \n

          Automotive:<\/strong>\u00a0Engine mounts, transmission systems, and suspension components.<\/p>\n<\/li>\n

        • \n

          Aerospace:<\/strong>\u00a0Jet engine assemblies, landing gear, and avionics.<\/p>\n<\/li>\n

        • \n

          Electronics:<\/strong>\u00a0PCB mounting, connectors, and heat sinks.<\/p>\n<\/li>\n

        • \n

          Industrial Machinery:<\/strong>\u00a0Pumps, compressors, and heavy equipment.<\/p>\n<\/li>\n

        • \n

          Renewable Energy:<\/strong>\u00a0Wind turbine gearboxes and solar panel mounting systems.<\/p>\n<\/li>\n<\/ul>\n

          \n

          Excellent Case: Finger Spring Washers in Wind Turbine Gearboxes<\/strong><\/h2>\n

          Challenge:<\/strong><\/h3>\n

          Wind turbine gearboxes experience extreme vibrations and dynamic loads due to fluctuating wind forces. Traditional washers often fail to maintain bolt tension, leading to loosening and premature wear.<\/p>\n

          Solution:<\/strong><\/h3>\n

          High-grade\u00a0stainless steel finger spring washers<\/strong>\u00a0were integrated into the gearbox assembly. The washers provided:<\/p>\n

            \n
          • \n

            Continuous Spring Action:<\/strong>\u00a0The fingers maintained consistent pressure, compensating for thermal expansion and vibration.<\/p>\n<\/li>\n

          • \n

            Vibration Damping:<\/strong>\u00a0Reduced micro-movements between bolted joints, preventing fretting corrosion.<\/p>\n<\/li>\n

          • \n

            Longevity:<\/strong>\u00a0The corrosion-resistant material withstood harsh weather conditions.<\/p>\n<\/li>\n<\/ul>\n

            Result:<\/strong><\/h3>\n

            The gearbox showed a\u00a040% reduction in maintenance downtime<\/strong>\u00a0and a\u00a025% increase in service life<\/strong>, significantly lowering operational costs.<\/p>","protected":false},"excerpt":{"rendered":"

            Custom Finger Spring Washer Superior Stainless Steel Finger Disc Springs Washer<\/p>","protected":false},"featured_media":3750,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[36],"product_tag":[821,800,129,127,1980,1976,1977,1978,1979,1972,125,126,1186,1968,1967,1965,1969,1964,1963,1970,1966,1971],"class_list":{"0":"post-3746","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-machined-washer","7":"product_tag-cnc-machined-washer","8":"product_tag-cnc-machined-washers","9":"product_tag-cnc-machining-washer","10":"product_tag-cnc-machining-washers","11":"product_tag-finger-disc-springs","12":"product_tag-finger-spring-washer","13":"product_tag-finger-spring-washers","14":"product_tag-finger-washer","15":"product_tag-finger-washers","16":"product_tag-m6-spring-washers","17":"product_tag-machined-washer","18":"product_tag-machined-washers","19":"product_tag-spring-washer","20":"product_tag-spring-washer-12mm","21":"product_tag-spring-washer-m10","22":"product_tag-spring-washer-m12","23":"product_tag-spring-washer-m5","24":"product_tag-spring-washer-m6","25":"product_tag-spring-washer-m8","26":"product_tag-spring-washers","27":"product_tag-stainless-spring-washer","28":"product_tag-stainless-spring-washers","30":"first","31":"instock","32":"shipping-taxable","33":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/machinedwasher.com\/pl\/wp-json\/wp\/v2\/product\/3746","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/machinedwasher.com\/pl\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/machinedwasher.com\/pl\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/machinedwasher.com\/pl\/wp-json\/wp\/v2\/comments?post=3746"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/machinedwasher.com\/pl\/wp-json\/wp\/v2\/media\/3750"}],"wp:attachment":[{"href":"https:\/\/machinedwasher.com\/pl\/wp-json\/wp\/v2\/media?parent=3746"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/machinedwasher.com\/pl\/wp-json\/wp\/v2\/product_brand?post=3746"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/machinedwasher.com\/pl\/wp-json\/wp\/v2\/product_cat?post=3746"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/machinedwasher.com\/pl\/wp-json\/wp\/v2\/product_tag?post=3746"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}