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TECHNICAL PAPERS

Stability of Water-Lubricated, Hydrostatic, Conical Bearings With Spiral Grooves for High-Speed Spindles

[+] Author and Article Information
S. Yoshimoto, S. Oshima

Science University of Tokyo, Department of Mechanical Engineering, 1-3 Kagurazaka Shinjuku-ku, Tokyo 162-8601 Japan

S. Danbara

Science University of Tokyo, Department of Mechanical Engineering, 1-3 Kagurazaka Shinjuku-ku, Tokyo 162-8601 Japan

T. Shitara

Union Tool Co. Ltd., 6-2706 Aza-Sotokawa, Settaya-Cho Nagaoka-City, Niigata Prefecture 940-11 Japan

J. Tribol 124(2), 398-405 (Feb 01, 2001) (8 pages) doi:10.1115/1.1405815 History: Revised February 01, 2001; Received February 27, 2001
Copyright © 2002 by ASME
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References

Figures

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Water-lubricated hydrostatic conical bearing with spiral grooves
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Detailed drawing of the conical bearing
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Mass flow continuity in the resistance network method
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Fixed and moving coordinate systems
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Pressure distribution in the s direction
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Relationship between bearing clearance and load carrying capacity
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Relationship between bearing clearance and critical mass
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Relationship between bearing clearance and whirl ratio
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Effect of groove width ratio on Mc
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Effect of groove angle on Mc with various hr0
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Effect of groove angle on Mc with various N
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Effect of groove depth ratio on Mc
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Shaft displacements for an unstable condition
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Relationship between bearing clearance and threshold speed of instability

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