For professional use, purchase the withdrawn standard from Beuth Verlag (approx. €80–120) – it ensures correct tolerance tables and inspection data. For quick reference, download a DIN 5482 summary chart from a reputable gear supplier’s website, not a random PDF-sharing site.
Search string for reliable results:
"DIN 5482" filetype:pdf site:beuth.de
or
"DIN 5482 Tabelle" (tables) filetype:pdf
Understanding the DIN 5482 Spline Standard: A Legacy in Modern Engineering
When working with older mechanical systems or specialized hydraulic equipment, you will likely encounter the DIN 5482 standard . Though officially withdrawn and succeeded by
, this German standard for involute splines remains a critical reference for maintenance, spare parts, and specific industrial sectors. What is DIN 5482?
DIN 5482 is a German standard that defines dimensions and tolerances for involute splines din 5482 spline standard file type pdf77
—the ridges or teeth on a drive shaft that mesh with grooves in a mating piece to transmit torque. It was primarily designed for fine-module applications and is characterized by a 30° pressure angle Why is it Still Relevant? While modern designs favor the DIN 5480 standard , DIN 5482 persists for several reasons: Legacy Systems:
Thousands of machines built decades ago still rely on these exact spline profiles for operation. Hydraulics Industry:
It is still widely used in fluid flow and hydraulic motor applications because its specific pitches and diameters align well with standard bearing sizes. Interchangeability:
To maintain existing equipment, engineers must often source or manufacture parts that strictly adhere to this "obsolete" standard to ensure a perfect fit. Key Technical Characteristics
If you are analyzing a DIN 5482 spline, look for these specific traits: Module System:
Like most DIN standards, it uses a metric module system to define tooth size. Uncommon Pitches: For professional use , purchase the withdrawn standard
Unlike its successor, DIN 5482 often utilizes "non-standard" modules, such as , which can make tooling more difficult to find. Limited Tooling Versatility:
One notable drawback is that generating tools for a specific pitch in DIN 5482 do not always cover the full range of tooth counts, whereas DIN 5480 tools are more universal. Finding Data and Resources
Because this standard is no longer "current," finding official PDF documentation can be a challenge. However, several engineering resources provide the necessary data:
WN10 - Involute Splines according to DIN 5482 - HEXAGON Software
If you have a drawing or a file name like DIN 5482 W30x2x18, here is how to decode it:
Example Calculation: If Ref Dia = 30mm and Module = 2: Number of Teeth ($z$) = $30 / 2 = 15$ teeth. (Note: DIN 5480 uses a slightly different notation involving fit classes like 7H or 6g, which makes deciphering old DIN 5482 drawings tricky). "DIN 5482" filetype:pdf site:beuth
You have the PDF. You have the numbers. Your CNC mill is waiting.
The Broaching Problem: You cannot cut an internal DIN 5482 spline on a standard CNC mill without a rotary axis and a form cutter. You need a broach. Because DIN 5482 is obsolete, stock broaches are rare. You will likely need to order a custom pull broach from a company like American Broach or Karl Klink. They will ask for "DIN 5482, 1977 edition, side fit." Send them a screenshot from your PDF77.
The Hobbing Solution: For external splines (shafts), you can use a standard 20° pressure angle gear hob. However, you must calculate the "hob shift" to achieve the profile shift coefficient x. Most CNC hobbing software (like Gleason's GMS) has a legacy DIN 5482 template. If yours doesn't, manually enter the root diameter and let the software calculate the shift.
The 3D Modeling Trap: Do not use the "Spline" tool in SolidWorks or Inventor to model DIN 5482. Those wizards assume ISO 4156 or ANSI. The tooth thickness will be wrong. You must model the spline by plotting the involute points from the equations in the PDF77 (or use a dedicated script).
While I cannot directly provide a copyrighted PDF file, I can offer a comprehensive guide to the content, specifications, and application of the DIN 5482 standard to assist you in your engineering or procurement work.
DIN 5482 was first published in the mid‑20th century by the Deutsches Institut für Normung (German Institute for Standardization). Unlike the later DIN 5480 (which uses side fit and larger pressure angles of 30°, 37.5°, and 45°) or ISO 4156 (which harmonized many European spline standards), DIN 5482 focused on a compact, high‑strength spline with a 30° pressure angle and a flat root geometry. The standard covers:
Its key design feature is that centering is achieved on the flanks (side fit), not on the major or minor diameters. This reduces manufacturing sensitivity compared to straight‑sided splines.