The HELI-CAL Flexure is a flexible helix (curved) beam machined from one piece of material into a specific configuration that incorporates special design requirements, performance features or characteristics.

When used as a spring, the flexure provides desired and precise elastic performance in compression, extension, torsion, lateral bending and lateral displacement modes. Used as a flexible coupling or u-joint, the flexure utilizes its curved beam to transmit torque while compensating for lateral, axial, and angular misalignment movements.