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DIN-EN 16983  •  ex DIN 2093  •  Metric

Disc Springs: All Sizes DIN-EN 16983 (DIN 2093) Product Data

This is a summary of the key technical data for the various sizes of disc spring we manufacture for both Metric and Imperial sizes. For additional information, please do not hesitate to ask.

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How to read the data Abbreviations, ratios and base material

Abbreviations used in the product data

  • DIN-EN 16983 defines Group 3 disc springs: reduced thickness disc springs with contact flats
  • Any reference with an apostrophe ´ refers to a reduced thickness dimension, thus
  • t is material thickness, whilst t´ is the reduced material thickness for a Group 3 disc spring with contact flats, so
  • we have l0, which refers to the overall height of the disc spring and never changes (there is no ´ version), however
  • if a calculation uses t, then if t´ is relevant it must be used instead, which is implicitly true for h´0
  • we will have two different cone heights, h0 and h´0
  • We provide the Group (1, 2 or 3) as defined by the standard to help with tolerances
  • and we provide the Dimensional Series as practically interpreted from the standard as well, also for tolerances
  • Di: Inner Diameter, De: Outer Diameter
  • The Force provided is that which corresponds to compressing the spring by 25%, 75% and 100% of its available travel or cone height
  • We also provide the Operational Compression limit for Dynamic use as a % of s/h´0

Ratios provided

  1. h0/t: Ratio of Cone Height to Material Thickness. Determines the shape of the load curve, from linear to progressive.
  2. De/t: Ratio of Outer Diameter to Material Thickness. Defines the dimensional series class (A, B or C) and various tolerances for DIN 2094 / DIN EN 16983.
  3. De/Di: Ratio of Outer to Inner Diameter. Very important for the static set stress threshold at σI max.

Base material

In so far as base material is concerned, the data provided with the dimensions is only valid for SAE1075 and SAE6150 Spring Steel.

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