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Porous Media Radial Air Bearings Deliver Frictionless Rotary Motion

Fri, 05/08/2009 - 12:19pm

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This line of radial air bearings is designed for use in precision rotary motion applications. These new modular components do not constrain rotary motion using a 360° housing as rolling element bearings do; instead, they are positioned in combinations of three to four segments to support a rotor from just a small percentage of its circumference. When this rotor is also constrained axially—for example, using flat round or rectangular air bearings—it will float on a five micron film of air, enabling frictionless rotary motion. The resulting assembly is simple; has only one moving part; and provides smoother, faster, more consistent, and precise frictionless motion, without noise, vibration, or need for lubrication.


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