New designs for rotary and linear air bearing stages are moving these high-performance motion products into the mainstream. Scaled down into stages that look like everyday solutions, air bearings once viewed as a novelty only for the highest-end applications are becoming more cost-effective and easier to integrate into regular motion platforms.
John Lindell, product manager for Aerotech's Semiconductor Automation Group, says the basic technology drivers are the same as suppliers strive to limit axial, radial and tilt error motions while driving large rotational inertias. Utilizing new materials and refining the methods used to control motion are critical.
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For more information on precision linear and rotary translation stages and highly integrated multi-axis systems from Danaher Motion, go to http://rbi.ims.ca/4932-554.