Spiral-grooved bearings have recently attracted large attention for spindles of precision equipment. In this paper, optimizing the groove dimensions of spiral-grooved journal bearings for RRO or NRRO characteristics is discussed. Evaluation indexes for operating bearings concerning the static displacement of the rotor and RRO and NRRO amplitudes are firstly proposed. The appropriate groove designs (groove width, angle, and depth) for minimizing the proposed evaluation indexes are given, and it is also shown that the design can improve bearing run-out performances much more than the currently recommended design. In addition, by separating the optimum groove designs for the two groups, guidelines for designing of the groove configuration for good RRO and NRRO characteristics are comprehensively indicated.
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STLE/ASME 2006 International Joint Tribology Conference
October 23–25, 2006
San Antonio, Texas, USA
Conference Sponsors:
- Tribology Division
ISBN:
0-7918-4259-2
PROCEEDINGS PAPER
Optimization of Groove Dimensions in Spiral-Grooved Journal Bearings for RRO or NRRO Characteristics
T. Hirayama,
T. Hirayama
Doshisha University, Kyotanabe, Kyoto, Japan
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N. Yamaguchi,
N. Yamaguchi
Ryukoku University, Otsu, Shiga, Japan
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S. Sakai,
S. Sakai
Osaka Electro-Communication University, Neyagawa, Osaka, Japan
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S. Toma,
S. Toma
Doshisha University, Kyotanabe, Kyoto, Japan
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N. Hishida,
N. Hishida
Spindle Device Laboratory, Kyoto, Japan
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T. Matsuoka,
T. Matsuoka
Doshisha University, Kyotanabe, Kyoto, Japan
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H. Yabe
H. Yabe
Osaka Electro-Communication University, Neyagawa, Osaka, Japan
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T. Hirayama
Doshisha University, Kyotanabe, Kyoto, Japan
N. Yamaguchi
Ryukoku University, Otsu, Shiga, Japan
S. Sakai
Osaka Electro-Communication University, Neyagawa, Osaka, Japan
S. Toma
Doshisha University, Kyotanabe, Kyoto, Japan
N. Hishida
Spindle Device Laboratory, Kyoto, Japan
T. Matsuoka
Doshisha University, Kyotanabe, Kyoto, Japan
H. Yabe
Osaka Electro-Communication University, Neyagawa, Osaka, Japan
Paper No:
IJTC2006-12082, pp. 355-360; 6 pages
Published Online:
October 2, 2008
Citation
Hirayama, T, Yamaguchi, N, Sakai, S, Toma, S, Hishida, N, Matsuoka, T, & Yabe, H. "Optimization of Groove Dimensions in Spiral-Grooved Journal Bearings for RRO or NRRO Characteristics." Proceedings of the STLE/ASME 2006 International Joint Tribology Conference. Part A: Tribomaterials; Lubricants and Additives; Elastohydrodynamic Lubrication; Hydrodynamic Lubrication and Fluid Film Bearings; Rolling Element Bearings; Engine Tribology; Machine Components Tribology; Contact Mechanics. San Antonio, Texas, USA. October 23–25, 2006. pp. 355-360. ASME. https://doi.org/10.1115/IJTC2006-12082
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