Typically, efficiency ratings in flexure designs depend on the applications that you intend to use them. If most of your applications are near static situations, it is of critical importance you have your flexure manufacturer design yours while adhering to almost all efficiency properties.
Typical cases of when you need flexures of high efficiency is positioning gauging devices in precise locations, and when operating piezoelectric-driven devices at kHz frequencies.
When referring to efficiency in flexure designs, there are key issues you should address, top among them being:
Manufacturers agree that it is possible to clock 100% efficiency in flexure production irrespective of its application. However, more of precise machining goes into attaining such high levels of effectiveness in every flexure.
Your manufacturer should consider a design with an angstrom level accuracy and infinite life expectancy when reproducing details of input actuation. That is why it is always advisable you work with a reputable high-tech engineering firm that specializes in precision engineering.
Only that way can all your flexures control precision accuracies in your automation processes with near zero errors.
Choice of Material
Most standard flexures are of blue tempered spring steel, and you can get such flexures off the shelf. You, however, can place a custom order with your flexure manufacturer to produce for you flexures with particular electrical, magnetic and physical properties.
In this case, it is the type of application that will influence the choice of material your manufacturer will use to make the flexures. The efficiency of these custom flexures is now more application-based than from a general view.
It will depend on certain performance characteristics such as corrosion and temperature resistant properties.
Most automation processes in precision engineering will demand you use flexures to reproduce linear and rotary motions. In such cases, you will want your flexures to replicate these movements very accurately.
That is why integrating high efficiency in your flexure designs is a critical element you never should ignore.