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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

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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