For nearly 25 years, IST Precision has specialized in developing custom motion control systems. In the realm of precision engineering, air bearing stages are often favored for their ability to provide frictionless sliding motion, Figure 1. Unlike traditional rolling element bearings, such as cross roller rails, air bearing stages utilize a thin layer of air (measured in micrometers) between the bearing pad and carriage to eliminate friction. This characteristic, combined with precision feedback encoders, allows for highly repeatable and potentially fast dynamic motions. Air bearing systems are widely used in industries such as defense, aerospace, flat panel displays, and metrology. Their advantages over traditional bearings include significantly higher stage speeds, superior long-term performance at higher resolutions, the elimination of lubricants and particulate matter, and smooth, vibration-free operation.

IST Precision develops a range of industrial automation and high-end precision instrumentation devices. This article highlights the use of flexure rotational pivots in some of our more sensitive precision instruments, focusing on applications like surface profilometer hinges and compact steering laser gimbals.