The primary purpose of DIN 5463 is to define a standardized method for connecting a rotating shaft to a mating component (the hub) to transmit torque while allowing for potential axial displacement. Unlike involute splines (like ), DIN 5463 features parallel (straight-sided)
: Complete dimension tables and tolerance data can be found in reference PDFs from Omni Gear or Scribd . din 5463 pdf
| Feature | DIN 5463 (Old/Widrawn) | DIN 20550 (Current) | | :--- | :--- | :--- | | | Withdrawn (1999) | Active | | Scope | Hexagon broaches & pulling heads | Broaching tools for hexagon and square profiles | | Hex Sizes | Limited to common metric sizes | Expanded range, plus new tolerance classes | | Pull Head Design | Specific thread forms (legacy) | Modernized API-style pull heads | | Tolerances | Based on DIN 7160 (old) | Based on ISO 2768 (new) | The primary purpose of DIN 5463 is to