Flexible shaft coupling has anti-backlash torque

An Abssac product story
Edited by the Engineeringtalk editorial team Mar 12, 2009

Abssac offers a helical beam flexible shaft coupling with anti-backlash torque for power transmission applications.

The helical beam product can be useful when parameters such as torque and angular shaft misalignment are outside of the norm.

When the inside diameter of the flexure changes, so does the torque capacity, torsional stiffness and axial spring rates, without restricting your choice of bore sizes.

When the inside diameter of the flexure changes, so does the torque capacity, torsional stiffness and axial spring rates, without restricting your choice of bore sizes.

The advantages lie in the capability of the shaft coupling to change the actual helical beam configuration, or 'flexure' as it is often termed.

In affect, the flexure part of the shaft coupling can be tuned to suit individual application requirements.

For example, by varying the thickness of the flexure, the coupling can accommodate increasing amounts of torque and radial loads.

The design engineer can specify the torsional stiffness and compression spring rates independent of other factors such as angular offset and parallelism acceptance.

When the inside diameter of the flexure changes, so does the torque capacity, torsional stiffness and axial spring rates, without restricting your choice of bore sizes.

When the number of rotations of coils is changed, the torque capacity remains unaffected, but all the other characteristics change.

Then the option to use multiple start coils, such as double and triple start coil configurations, can ultimately provide higher torsional stiffness to the part.

High-strength materials such as 17-4PH CRES steels can also be used as well as 7075-T6 aluminium.

Factors such as elasticity, fatigue, corrosion resistance, mass, magnetic permeability, operating temperature are all affected by the material choice.

The performance and attachments available allows a bespoke shaft coupling to be supplied.

Find out more about this article. Request a brochure, download technical specifications and request samples here.

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