{"id":3621,"date":"2026-10-29T17:02:30","date_gmt":"2026-10-29T09:02:30","guid":{"rendered":"http:\/\/www.whiskyharborhub.com\/blog\/?p=3621"},"modified":"2026-10-29T17:02:30","modified_gmt":"2026-10-29T09:02:30","slug":"what-is-the-load-deflection-characteristic-of-disc-spring-din2093-en16983-40f7-6efb21","status":"publish","type":"post","link":"http:\/\/www.whiskyharborhub.com\/blog\/2026\/10\/29\/what-is-the-load-deflection-characteristic-of-disc-spring-din2093-en16983-40f7-6efb21\/","title":{"rendered":"What is the load – deflection characteristic of Disc Spring DIN2093\/EN16983?"},"content":{"rendered":"

If you\u2019re in the market for disc springs (also called Belleville washers, if you\u2019ve heard that term thrown around), you\u2019ve probably come across the DIN2093 and EN16983 standards. As a supplier of these specific disc springs, I get so many questions about their load-deflection characteristics\u2014like, \u201cWhy does mine act different from one that\u2019s labeled the same?\u201d or \u201cHow do I even measure if it\u2019s performing right for my application?\u201d Let\u2019s break this down without all the stuffy engineering jargon that makes this stuff feel impossible to parse. Disc Spring DIN2093\/EN16983<\/a><\/p>\n

<\/p>\n

First, let\u2019s get the basics straight: DIN2093 and EN16983 are basically the international rulebooks for disc springs, right? DIN2093 is the German standard that\u2019s been around for decades, and EN16983 is the European harmonized version that aligns most of the specs so you don\u2019t have to mix and match parts from different regions and hope they work. For us as suppliers, that means when we stamp a part as complying with either, every dimension, material, and tolerance is locked in\u2014no guesswork there.<\/p>\n

The core thing people care about with any disc spring is load-deflection. That\u2019s just the relationship between how much you push down on the spring (deflection, measured in millimeters or inches, depending on where you\u2019re based) and how much force it pushes back (load, in newtons or pounds). This isn\u2019t a linear relationship like a coil spring, which is a big reason people mix up disc springs with other types of washers. Let\u2019s use a super simple example to make this click: if a coil spring stretches 1mm and exerts 100N, it\u2019ll stretch 2mm and exert 200N. Disc springs don\u2019t do that\u2014their curve is shaped a certain way because of their design.<\/p>\n

DIN2093\/EN16983 disc springs are conical, right? They\u2019re like a tiny, flat disk with a curve in the center, so when you apply a load, you flatten that curve out. The standard defines the key dimensions that shape this curve: outer diameter (let\u2019s call that D, usually from 3mm to 200mm for standard parts), inner diameter (d), thickness (t), and free height (h, the gap from the flat edge to the highest point of the cone when it\u2019s unloaded). Those four numbers aren\u2019t just random\u2014they\u2019re the building blocks of every DIN2093\/EN16983 part.<\/p>\n

Wait, let\u2019s talk about h\/t ratio, because that\u2019s the big one that dictates the curve. The standard sorts disc springs into groups based on this ratio, and each group has a totally different load-deflection behavior. Let\u2019s go through the most common ones you\u2019ll see:<\/p>\n

    \n
  1. Low h\/t (around 0.4): These are the \u201cstiff\u201d ones. Their curve is almost linear until they get close to full flattening (that\u2019s called solid deflection, where the cone is totally flat). They\u2019re great for applications where you need consistent force, like clamping bolts in heavy machinery or securing valves\u2014no weird surprises when you load them.<\/li>\n
  2. Medium h\/t (around 0.75): These are the workhorses. Their curve is steeper in the middle, and if you load them past 75% of solid deflection, they actually start to get softer for a little while. Wait, that\u2019s not a mistake! It\u2019s called negative stiffness, and it\u2019s super useful for things like vibration dampening. If a machine has a sudden shock, the disc spring will absorb a big part of that instead of transferring it to the rest of the equipment.<\/li>\n
  3. High h\/t (around 1.3): These are the fun, springy ones. Their curve has a peak in the middle\u2014so if you deflect them just past that peak, they flip and exert less force the more you push, until they hit solid. That\u2019s perfect for things like clutch systems or safety devices that need to disengage when a certain force is hit. The EN16983 standard actually adjusted some tolerances here to make that peak more consistent than the old DIN2093 specs, which was a win for us because it cut down on returns from customers who got parts with wonky peaks.<\/li>\n<\/ol>\n

    Now, let\u2019s get into how the standard calculates load, because that\u2019s where a lot of suppliers cut corners (don\u2019t worry, we don\u2019t do that). DIN2093\/EN16983 uses a formula that takes those four dimensions and Young\u2019s modulus of the material (usually spring steel, like 50CrV4, which is the standard for these parts) to predict the load at a given deflection. The formula isn\u2019t just a random equation\u2014it\u2019s tested on thousands of parts to make sure it lines up with real-world performance. But here\u2019s the thing: this is for a single disc spring. Most of the time, people don\u2019t use just one\u2014they stack them. That changes the load-deflection too.<\/p>\n

    Stacking disc springs is super common. If you stack them in parallel (same direction, so all cones point the same way), the total deflection is the same as one spring, but the load adds up. So two parallel springs will give twice the load at the same deflection. If you stack them in series (alternating directions, cones pointing opposite), the total load is the same as one spring, but the deflection adds up. Two series springs will deflect twice as much at the same load. DIN2093\/EN16983 has specific specs for stacking, too\u2014you can\u2019t just stack any part; you have to make sure the ends are flat enough and the tolerances line up so the load doesn\u2019t drop off.<\/p>\n

    Now, I get it\u2014you don\u2019t just care about the theory. You care about what this means for your application. Let\u2019s use a couple real examples: a customer last year came to us because their old disc springs (not DIN2093\/EN16983) were failing after a few months. Their machine used medium h\/t springs for vibration dampening, and the non-standard parts had a peak that was inconsistent, so when the vibration hit, the springs either didn\u2019t absorb enough force or compressed too far and broke. We supplied DIN2093\/EN16983 medium h\/t springs, and they told us a month later that the failures stopped. Another customer needed a safety valve that would trigger at exactly 500N, so we used high h\/t DIN2093 springs tuned so that the peak load hit exactly 500N when deflected 80%\u2014it worked perfectly, no over-triggering.<\/p>\n

    But wait, why is there a difference between what the standard says and what you get from a supplier? Because some suppliers cut corners on material or tolerance. DIN2093\/EN16983 requires that each spring has a tolerance on dimensions like t (thickness) of \u00b10.01mm for small parts, right? Some cheaper suppliers use thinner steel or let thickness vary by 0.05mm, which changes the load by up to 10%\u2014that might not sound like a lot, but for a critical application, that can make the difference between a part working and a machine breaking. Also, material: spring steel for disc springs has to be heat-treated to get the right hardness, otherwise it will lose load over time (that\u2019s called \u201csettling\u201d or \u201crelaxation\u201d). DIN2093\/EN16983 requires a minimum hardness of HRC 44-50, and we test every batch to make sure it meets that.<\/p>\n

    Another thing that affects load-deflection: pre-load. A lot of people pre-compress their disc springs before installing them, to make sure they\u2019re already sitting at a certain force when the machine is assembled. DIN2093\/EN16983 has pre-load specs that let you calculate exactly what deflection you need to get that pre-load, so you don\u2019t end up with a spring that\u2019s too tight or too loose. For example, if you need a pre-load of 300N, you can look up the load-deflection curve for your specific part and find the deflection that corresponds to 300N, then pre-compress it to that point. We include that data in every batch we ship, right next to the part number, so customers don\u2019t have to guess.<\/p>\n

    Wait, let\u2019s clear up a common myth: disc springs don\u2019t just follow the formula perfectly. There are real-world factors that play into it\u2014like surface finish, or if the spring has any tiny defects from stamping. That\u2019s why we test every lot of DIN2093\/EN16983 springs we make: we take 10% of each batch, deflect them at various points, measure the load, and make sure it\u2019s within the tolerance the standard allows. If any part is off, we scrap the whole batch\u2014no exceptions. That\u2019s how we\u2019ve built a reputation for parts that perform exactly as advertised.<\/p>\n

    Now, let\u2019s talk about how to test the load-deflection yourself, if you\u2019re doing in-house testing. DIN2093\/EN16983 specifies that you should test a disc spring on a flat, parallel surface, using a load cell and a micrometer to measure deflection. You don\u2019t want to test it on a surface that\u2019s not flat, because that will throw off your measurements. Also, you have to use a test speed that\u2019s consistent\u2014usually 1mm per minute, because testing too fast will give a higher load reading, and too slow will let the spring relax a little, which makes the load lower. We include a simple test guide with every shipment, so even if you\u2019re not an engineering lab, you can check if the parts you got are up to spec.<\/p>\n

    Let\u2019s wrap this up. The load-deflection characteristic of DIN2093\/EN16983 disc springs isn\u2019t just a random curve\u2014it\u2019s a predictable, standardized relationship that\u2019s shaped by the part\u2019s dimensions, h\/t ratio, and how you stack or pre-load it. As a supplier, our job is to make sure those characteristics are consistent, so you don\u2019t have to deal with parts that don\u2019t work when you need them to. Whether you\u2019re using them for vibration control, safety devices, clamping, or something else entirely, sticking to the DIN2093\/EN16983 standard means you get a part with a load-deflection curve you can rely on.<\/p>\n

    <\/p>\n

    If you\u2019re not sure what kind of DIN2093\/EN16983 disc spring is right for your application, or you need help calculating the load-deflection for your project, feel free to reach out to our team to chat through your requirements. We can walk you through the specs, answer any questions you have, and even provide test data for specific part sizes to make sure everything lines up with what you need. We\u2019re all about making this stuff straightforward, not confusing.<\/p>\n

    TREP French Spring Washers<\/a> References<\/p>\n

      \n
    1. DIN 2093: Disc Springs \u2013 Dimensions, Loads and Deflections. Beuth Verlag GmbH, Berlin.<\/li>\n
    2. EN 16983: Disc Springs for Industrial Applications \u2013 Requirements and Test Methods. European Committee for Standardization (CEN), Brussels.<\/li>\n
    3. Wahl, A. M. (1944). Mechanical Springs. McGraw-Hill Book Company, Inc., New York.<\/li>\n
    4. Society of Automotive Engineers (SAE). (2018). Spring Design Manual, 5th Edition. SAE International, Warrendale.<\/li>\n<\/ol>\n
      \n

      Yangzhou Optimum Spring Manufacturing Co., Ltd.<\/a>
      As one of the most professional disc spring din2093\/en16983 manufacturers and suppliers in China, we’re featured by quality products and good service. Please rest assured to buy customized disc spring din2093\/en16983 made in China here from our factory. For more information, contact us now.
      Address: No.9 West of Shuangtang Rd, Yangzhou, P.R. China 225000
      E-mail: susie@optimum-spring.com
      WebSite:       https:\/\/www.optimum-spring.com\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

      If you\u2019re in the market for disc springs (also called Belleville washers, if you\u2019ve heard that … What is the load – deflection characteristic of Disc Spring DIN2093\/EN16983?<\/span>Read more<\/a><\/p>\n","protected":false},"author":7,"featured_media":3621,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[3584],"class_list":["post-3621","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-disc-spring-din2093-en16983-4410-6f3a69"],"_links":{"self":[{"href":"http:\/\/www.whiskyharborhub.com\/blog\/wp-json\/wp\/v2\/posts\/3621","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.whiskyharborhub.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.whiskyharborhub.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.whiskyharborhub.com\/blog\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/www.whiskyharborhub.com\/blog\/wp-json\/wp\/v2\/comments?post=3621"}],"version-history":[{"count":0,"href":"http:\/\/www.whiskyharborhub.com\/blog\/wp-json\/wp\/v2\/posts\/3621\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.whiskyharborhub.com\/blog\/wp-json\/wp\/v2\/posts\/3621"}],"wp:attachment":[{"href":"http:\/\/www.whiskyharborhub.com\/blog\/wp-json\/wp\/v2\/media?parent=3621"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.whiskyharborhub.com\/blog\/wp-json\/wp\/v2\/categories?post=3621"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.whiskyharborhub.com\/blog\/wp-json\/wp\/v2\/tags?post=3621"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}