R+W provides low inertia servo couplings

A R and W Coupling Technology product story

Edited by the Engineeringtalk editorial team Jan 27, 2010

With a trend in industry to process more material, faster and more efficiently, R+W offers a high torque, high misalignment, low inertia servo coupling, with less compromise to torsional stiffness.

Stainless-steel bellows couplings have the highest torsional stiffness of commercially available flexible couplings, making them suitable for aggressive servo-driven applications.

But in cases where the two shafts to be connected are mounted to different bearing surfaces, it can be difficult to maintain the precise alignment tolerances normally required.

Utilising a special, high stiffness bellows and high-strength connection method, the BKZ coupling range is claimed to handle an average of 2.6x the traditional torque rating at a given outside diameter, and an average of 2.9x more lateral misalignment.

This opens up the benefits of precision bellows couplings to a new segment of machine design and servo motion control.

Accepting bore diameters ranging from 15 to 60mm and torque ratings from 20 to 1,000Nm, the BKZ range is available in four sizes, with a variety of materials, finishes and the optional self-opening clamp system.