1/4" x 8mm Flexible Coupling

(4 reviews) Write a Review
  • OpenBuilds® 1/4" x 8mm Flexible Coupling  155
  • OpenBuilds® 1/4" x 8mm Flexible Coupling  155


Flexible couplings are used to transmit torque from a stepper motor to a lead screw, thus creating the movement in an actuator.


Product Features

  • 5 degree flexibility helps with misalignment
  • Independent screw to lock shafts
  • Can reduce vibration

What is Included

  • (1) 5mm x 8mm Flexible Coupling

Product Specifications

  • Length: 25mm (.98")
  • OD: 20mm (.79")
  • Shaft: 1/4”mm x 8mm
  • Aluminum
  • Color: Silver

Assembly/Support/Documentation/3D Models

Easy follow along assembly video - top notch awesome community support - open source files and documentation and examples.

Support CAD Files

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4 Reviews

  • 5
    Flexible couplings

    Posted by Scott Hunter on Feb 28th 2022

    Couplings are strong and easy to install.

  • 5
    Flexible Coupling

    Posted by Ken Wickham on Jan 4th 2022

    The very idea to have this coupling very flexible provides for a smoother rotation of the axis. Solves the problem on an axis being off by just a few micro meters, witch could potentially be problematic.

  • 5
    Works Great

    Posted by Neil Latoz on May 24th 2021

    Use these on an x/y axis table for glove manufacturing. Operators occasionally "crash" the machine and the couplers hold up well.

  • 5
    Spring coupling

    Posted by Dan Strausbaugh on Feb 10th 2021

    Nice piece. Good quality.

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