Ferrofluid film bearing for enhancement of rotary scanner performance

Charles J. Cheever; Zhixin Li; K. Raj

doi:10.1117/12.28068

1 February 1991 Ferrofluid film bearing for enhancement of rotary scanner performance

Charles J. Cheever, Zhixin Li, K. Raj

Proceedings Volume 1454, Beam Deflection and Scanning Technologies; (1991) https://doi.org/10.1117/12.28068
Event: Electronic Imaging '91, 1991, San Jose, CA, United States

Abstract

Hydrodynamic bearings utilizing ferrofluids are a new class of high performance bearings. These bearings are self-contained with ferrofluid acting both as a hydrodynamic pressure film and a sealant. Although relatively unknown in the laser scanner industry, ferrofluids have been widely used over the last two decades for applications in the semiconductor, computer and audio marketplaces. In this paper, performance features of Ferrofluid Film Bearings are also discussed, and experimental data such as power consumption, rotational accuracy and audible noise are presented to show that Ferrofluid Film Bearings enhance the performance of high resolution scanners and in this application are superior to ball bearing and gas bearing performance.

Citation Download Citation

Charles J. Cheever, Zhixin Li, and K. Raj "Ferrofluid film bearing for enhancement of rotary scanner performance", Proc. SPIE 1454, Beam Deflection and Scanning Technologies, (1 February 1991); https://doi.org/10.1117/12.28068

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