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For polygon shafts in accordance with:

  • DIN 32711 (P3G profile)
  • DIN 32712 (P4C profile)
  • a calculation of the stress of shaft and hub (surface load) is executed. Additional standards can be added. The stresses of shaft and hub (surface load) with determination of resistance is calculated in accordance with the classic literature (Niemann, Maschinenlemente I. 3rd edition, 2001) True-to-scale graphic display.


  • Determination of the bearing length of the shaft or of the hub, based on the target resistance and
  • determination of transferrable torque.
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