Welcome To Helical

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.

A specific advantage of this technology - it enables customer specified end attachments, such as tangs, clamps, flanges, or threaded ends to be integrated into a single, multi-functional component.  

Flexure Facts

Search our Database to find out about all of the various uses our amazing flexible couplings can be applied to, from aerospace to medical to youth sports!

Heli-Cal News... 

May 28, 2008

Topic:  Helical’s W-Series
Story: Helical’s W-Series coupling offers the convenience of metric sizing and fasteners for many designs. The unique operating characteristics provide performance benefits such as no maintenance, no backlash, no lubrication, constant rotational velocity, and smooth bearing loads… (More) 

February 27, 2008

Topic: "Machined" Springs

Story: “Machined” springs combine the elastic properties of materials such as high strength steels, aluminum and titanium with a curved beam helix (HELI-CAL® Flexure) to provide precise deflection rates for compression, extension, torsion, lateral bending and lateral translation spring functions… (More)

October 11, 2007

Topic: Helical's 17-4PH
Story: Helical’s 17-4PH stainless steel couplings are ideal when high strength, excellent fatigue resistance and high torsional stiffness are called for in an application. When compared to both 303 CRES and 7075-T6 aluminum, 17-4PH provides twice the torque…(More)