THE PUNK® NUT

The PunkNut is the first self-aligning and translating leadscrew and ball nut.

The PunkNut allows:

  • Accommodation of misalignment and mounting tolerance issues that critically affect reliability and longevity
  • Faster installation as it accurately self-aligns
  • Accommodation of structural movement and flexing, which prevents screw bending and nut binding
  • New uses for linear actuators

The PunkNut accommodates single or double axis misalignment up to +/- 15° without any increase in load or wear on the system.

  • A two ring system can be used to accommodate angular misalignment in a single plane.
  • A three ring system can be used to accommodate angular misalignment in two planes.
Punk-Couplings-Torque-revolution-punknut-single-axis-01
Punk-Couplings-Torque-revolution-punknut-01
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IDEAL APPLICATIONS

The PunkNut allows:

  • Accommodation of misalignment and mounting tolerance issues that critically affect reliability and longevity
  • Faster installation as it accurately self-aligns
  • Accommodation of structural movement and flexing, which prevents screw bending and nut binding
  • New uses for linear actuators

THE PUNKNUT IN ACTION

Punk® geometric philosophy is radically different and represents a completely new type of technology to support mechanical power transmission and linear motion. Our geometric philosophy can be applied to leadscrew and ball screw nuts in linear actuators as a means of accommodating angular misalignment between the lead screw or ball screw and carriage rails. In this application:
  • The inner surface of the inner ring has the lead nut thread or contains a ball screw nut
  • The axial load is carried by the spherical surfaces
  • The axles react the torque of the leadscrew and nut or ball screw and nut
  • The complete PunkNut assembly incorporates simple sliding mechanisms
  • The travel required for linear slides is determined as a trigonometric function of the required angle of misalignment and the length of the leadscrew traversed.

The PunkNut’s unique self-aligning capability maximizes a system’s:

  • Reliability
  • Efficiency
  • Longevity
  • And reduces installation time and costs

Prototyping and testing in progress. We are now seeking to licence PunkNut technology for commercial development.
If you want to find out more, please don’t hesitate to contact us.

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