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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

Rodkiewicz,  C. M., and Kalita,  W., 1995, “Experimental Investigation Regarding the Effects of Grooves on Conical Bearing Performance,” Tribol. Trans., 38, No. 1, pp. 178–182.
Yoshimoto,  S., Anno,  Y., Tamura,  M., Kakiuchi,  Y., and Kimura,  K., 1996, “Axial Load Capacity of Water-Lubricated Hydrostatic Conical Bearings With Spiral Grooves (On The Case of Rigid Surface Bearings),” ASME J. Tribol., 118, No. 4, pp. 893–899.
Yoshimoto,  S., Kume,  T., and Shitara,  T., 1998, “Axial Load Capacity of Water-Lubricated Hydrostatic Conical Bearings With Spiral Grooves for High Speed Spindles (On the Case of a Compliant Surface Bearing),” Tribol. Int., 31, No. 6, pp. 331–338.
Vohr,  J. H., and Chow,  C. Y., 1965, “Characteristics of Herringbone-Grooved Gas-Lubricated Journal Bearings,” ASME J. Basic Eng., 87, No. 3, pp. 568–578.
Kogure,  K., Kaneko,  R., and Ohtani,  K., 1982, “A Study on Characteristics of Surface-Restriction Compensated Gas Bearing With T-Shaped Grooves,” BULL. JSME , 25, No. 210, p. 2039.
Fleming,  D. P., Cunningham,  R. E., and Anderson,  W. J., 1970, “Zero-Load Stability of Rotating Externally Pressurized Gas-Lubricated Journal Bearings,” ASME J. Lubr. Technol., 92, No. 2, pp. 325–334.
Pan, C. H. T., 1965. “Spectral Analysis of Gas Bearing Systems for Stability Studies,” in Dynamics and Fluid Mechanics, Vol. 3, Part 2 of Developments in Mechanics, Wiley, New York, pp. 431–447.

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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