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TECHNICAL PAPERS

Frictional and Electrical Characteristics of Grooved Fluid Film Bearings for High-Speed Laser Scanner Motor

[+] Author and Article Information
Young-Ze Lee, Seong-Hun Jeong, Kwang-Seob Jeong

Sungkyunkwan University, School of Mechanical Engineering, Suwon, KyungGi-Do, Korea

J. Tribol 122(3), 557-564 (Feb 08, 1999) (8 pages) doi:10.1115/1.555401 History: Revised February 08, 1999; Received April 27, 1999
Copyright © 2000 by ASME
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References

Tanaka,  K., and Muraki,  H., 1991, “Performance of Air-lubricated Hydrodynamic Bearing Spindles for Laser Scanners,” ASME J. Tribol., 113, pp. 609–614.
Murata,  S., Miyake,  Y., and Kawabata,  N., 1980, “Two-Dimensional Analysis of Herringbone Grooved Journal Bearings,” Bull. JSME, 23, No. 181, pp. 1980–1987.
Shikata,  H., 1985, “Sintered Bearing,” Journal of Japan Society of Lubrication Engineers, 30, pp. 573–578.
Quan,  Y., 1985, “Theoretical Analysis and Experimental Investigation of a Porous Metal Bearing,” Tribology, 18, pp. 67–73.
Kawabata,  N., Ozawa,  Y., Kamaya,  S., and Miyake,  Y., 1989, “Static Characteristics of the Regular and Reversible Rotation Type Herringbone Grooved Journal Bearing,” ASME J. Tribol., 11, pp. 484–490.
Kinouchi, K., and Tanaka, K., 1990, “Performance Characteristics of Herringbone Grooved Journal Bearings Using a Finite Element Method,” Proc. Japan Intern. Tribology Conf., Nagoya, Japan, pp. 935–940.
Kang,  K., Rhim,  Y., and Sung,  K., 1996, “A Study of the Oil-Lubricated Herringbone Grooved Journal Bearing: Part 1—Numerical Analysis,” ASME J. Tribol., 118, pp. 906–911.
Raman,  R. S. R., 1992, “Experimental Studies on Wear in Oil-impregnated Sintered Bearings,” Wear, 155, pp. 73–81.
Sato,  Y., and Ono,  K., 1990, “The Optimum Groove Geometry for Spiral Groove Viscous Pumps,” ASME J. Tribol., 112, pp. 409–414.
Bonneau,  D., and Absi,  J., 1994, “Analysis of Aerodynamic Journal Bearings with Small Number of Herringbone Grooves by Finite Element Method,” ASME J. Tribol., 116, pp. 698–704.
Zirkelback,  N., and San Andres,  L., 1998, “Finite Element Analysis of Herringbone Groove Journal Bearings,” ASME J. Tribol., 120, pp. 234–239.
Saito, S., and Tajima, K., 1984, “High-Speed Laser Beam Printer,” Hitachi Rev., pp. 183–186.
Kaneko,  S., and Obara,  S., 1990, “Experimental Investigation of Mechanism of Lubrication in Porous Journal Bearings: Part I—Observation of Oil Flow in Porous Matrix,” ASME J. Tribol., 112, pp. 618–623.

Figures

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The schematic diagram of bearings: (a) OSB; (b) HFB
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Roundness, profile, and roughness of OSB surface: (a) profile of sleeve; (b) roughness of sleeve (ridge); (c) roughness of shaft.
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Roundness, profile, and roughness of HFB surface: (a) roundness of sleeve; (b) roundness of shaft; (c) grooves of shaft; (d) roughness of sleeve; (e) roughness of shaft.
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The schematic diagram of the journal bearing tester
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Output voltage of electric contacts and friction forces of OSB due to speed variation at 1000∼9000 rpm
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Output voltage of electric contacts and friction forces of OSB due to speed variation at 11,000∼35,000 rpm: (a) 11,000∼20,000 rpm; (b) 23,000∼35,000 rpm.
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Output voltage of electric contacts and friction forces of OSB due to load variation at (a) 14,000 rpm and (b) 20,000 rpm.
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Output voltage of electric contacts and friction forces of HFB due to speed variation at 11,000 rpm∼35,000 rpm: (a) radial clearance 4 μm, viscosity 8.29 cSt; (b) radial clearance 4 μm, viscosity 25 cSt; (c) radial clearance 8 μm, viscosity, 8.29 cSt; (d) radial clearance 8 μm, viscosity 25 cSt.
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Output voltage of electric contacts and friction forces of HFB due to load variation at 28,000 rpm: (a) radial clearance 4 μm, viscosity 8.29 cSt; (b) radial clearance 8 μm, viscosity 8.29 cSt.
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Endurance test of scanner motor with HFB under various environments (averaged value of 20 bearings)

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