In a sterile environment (pharmaceutical manufacturing), oil or grease from a bearing would be unacceptable. In a vacuum (space, semiconductor processing), outgassing from lubricants is a problem. The frictionless bearing systems market provides the solution: magnetic bearings.
The Frictionless Advantage
The [LSI keyword: frictionless bearing systems market] is defined by the absence of mechanical contact. No friction means no wear, so the bearings never need replacement (theoretically). No friction also means no heat generation from friction (though there is still heat from electrical losses in the magnets). The frictionless bearing systems market for "clean" applications is the fastest-growing. The frictionless bearing systems market for "vacuum" applications (e.g., semiconductor handling robots, space simulation chambers) requires materials that do not outgas. The frictionless bearing systems market for "sterile" applications (pharmaceutical, biotechnology) can be sterilized with steam or chemicals (no lubricants to degrade). The frictionless bearing systems market for "cryogenic" applications (very cold, e.g., liquid hydrogen pumps) requires materials that are non-magnetic at low temperatures.
The frictionless bearing systems market also offers very low vibration (since there is no rolling contact). This is important for precision applications (e.g., optical manufacturing, electron microscopes). The frictionless bearing systems market for "damping" (vibration isolation) uses magnetic bearings to actively cancel vibrations. The frictionless bearing systems market for "quiet" operation (no bearing noise) is used in noise-sensitive environments.
Specialized Applications
The frictionless bearing systems market serves niche applications. Artificial heart pumps (ventricular assist devices – VADs): a frictionless bearing prevents blood damage (hemolysis) and thrombosis (clotting). The frictionless bearing systems market for "medical" applications is a high-value niche. Centrifuges for biotechnology: high-speed, sterile operation. The frictionless bearing systems market for "rotor" stability is critical. Reaction wheels for satellites: magnetic bearings allow very precise attitude control without vibration. The frictionless bearing systems market for "space" applications is growing. As the frictionless bearing systems market continues to evolve, the focus will be on reducing power consumption (magnets consume electricity), on improving reliability (electronics are the weak point), and on reducing cost. Frictionless bearings are not for every application, but where cleanliness, vacuum, or extreme life is required, they are the only solution.
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