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Journal of Tribology | Volume 138 | Issue 2 | research-article
Research Papers: Applications

Effects of Grease Characteristics on Sound and Vibration of a Linear-Guideway Type Recirculating Ball Bearing

[+] Author and Article Information
Hiroyuki Ohta

Department of Mechanical Engineering,
Nagaoka University of Technology,
Graduate School of Engineering,
1603-1 Kamitomioka,
Nagaoka, Niigata 940-2188, Japan
e-mail: ohta@mech.nagaokaut.ac.jp

Tatsuya Tsuruoka

Department of Mechanical Engineering,
Graduate School of Engineering,
Nagaoka University of Technology,
1603-1 Kamitomioka,
Nagaoka, Niigata 940-2188, Japan

Yukitoshi Fujinami

Lubricants Research Laboratory,
Idemitsu Kosan Co., Ltd.,
24-4 Anesakikaigan,
Ichihara, Chiba 299-0107, Japan

Soichiro Kato

LG Technology Department,
Linear Technology Center,
NSK Ltd.,
12 Kirihara,
Fujisawa, Kanagawa 252-0811, Japan

Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received May 31, 2015; final manuscript received August 20, 2015; published online October 15, 2015. Assoc. Editor: Ning Ren.

J. Tribol 138(2), 021101 (Oct 15, 2015) (8 pages) Paper No: TRIB-15-1176; doi: 10.1115/1.4031437 History: Received May 31, 2015; Revised August 20, 2015
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This paper deals with the effects of grease characteristics on sound and vibration of a linear-guideway type ball bearing. First, sound, vibration, and temperature of a linear-guideway type ball bearing were measured by changing 16 types of greases. Next, in order to explain the effects of grease characteristics (absolute viscosity η0 of the base oil in the grease at atmospheric pressure, pressure–viscosity coefficient ξ of the base oil, and penetration P of grease) and linear velocity V on the sound pressure p and vibratory acceleration a of the linear bearing, dimensional analyses were carried out. The dimensional analyses derived dimensionless products Pp/(η0V) and η0ξV/P for the sound, and dimensionless products Pa/V2 and η0ξV/P for the vibration. The plot of the measured data using dimensionless products showed that both sound pressure p and vibratory acceleration a (under a certain linear velocity) decreased as the absolute viscosity η0 of the base oil in the grease at atmospheric pressure or the pressure–viscosity coefficient ξ increased. Whereas the sound pressure p decreased as the penetration P decreased, the vibratory acceleration a decreased as P increased.
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References

1
Ohta, H. , 1999, “ Sound of Linear Guideway Type Recirculating Linear Ball Bearings,” ASME J. Tribol., 121(4), pp. 678–685. [CrossRef]
2
Ohta, H. , and Hayashi, E. , 2000, “ Vibration of Linear Guideway Type Recirculating Linear Ball Bearings,” J. Sound Vib., 235(5), pp. 847–861. [CrossRef]
3
Ohta, H. , and Nakagawa, T. , 2003, “ Using Ceramic Balls to Reduce Noise in a Linear Guideway Type Recirculating Linear Ball Bearing,” ASME J. Tribol., 125(3), pp. 480–486. [CrossRef]
4
Ohta, H. , Kato, S. , Matsumoto, J. , and Nakano, K. , 2005, “ A Design of Crowning to Reduce Ball Passage Vibrations of a Linear Guideway Type Recirculating Linear Ball Bearing,” ASME J. Tribol., 127(2), pp. 257–262. [CrossRef]
5
Ohta, H. , Kitajima, Y. , Kato, S. , and Igarashi, Y. , 2007, “ Effects of Ball Groupings on Ball Passage Vibrations of a Linear Guideway Type Ball Bearing,” ASME J. Tribol., 129(1), pp. 188–193. [CrossRef]
6
Ohta, H. , and Zikri, W. M. N. , 2009, “ Effects of Lubricants on Sound and Vibration of Rolling Guides,” 46th JSME Hokuriku-Shinetsu Branch General Meeting, pp. 293–294 (in Japanese).
7
Ohta, H. , Hayashi, S. , Kato, S. , and Igarashi, Y. , 2011, “ Effects of Vibration and Acoustic Emission of Defective Linear-Guideway Type Recirculating Ball Bearings,” ASME J. Tribol., 133(2), p. 021102. [CrossRef]
8
Ohta, H. , Nakajima, Y. , Kato, S. , and Igarashi, Y. , 2013, “ Vibration and Acoustic Emission Measurements Evaluating the Separation of the Balls and Raceways With Lubricating Film in a Linear Bearing Under Grease Lubrication,” ASME J. Tribol., 135(4), p. 041104. [CrossRef]
9
Okamoto, J. , Nakayama, K. , and Sato, M. , 1993, Introduction to Tribology, 3rd ed., Saiwai Shobo, Tokyo, (in Japanese).
10
NSK Ltd., 2003, “ Precision Machine Components,” CAT No. E615a.
11
Fukuda, M. , 1991, Handbook of Machine Noise, Sangyo Tosho Publishing, Tokyo, (in Japanese).
12
Sakakibara, K. , Ikejima, S. , Okazaki, S. , Ikuma, K. , Kakizaki, M. , and Ohno, N. , 2011, “ Development of Noise Reducing Grease,” SAE Paper No. 2011-01-1246.
13
Cameron, A. , 1981, Basic Lubrication Theory, 3rd ed., Ellis Horwood Limited, Chichester, UK.
14
Wu, C. S. , Klaus, E. E. , and Duda, J. L. , 1989, “ Development of a Method for the Prediction of Pressure–Viscosity Coefficient of Lubricating Oils Based on Free-Volume Theory,” ASME J. Tribol., 111(1), pp. 121–128. [CrossRef]
15
Gustafsson, O. G. , 1967, “ The Effect of Grease Lubrication on the Vibration of Rolling Bearings,” NLGI Spokesman, 31(8), pp. 289–297.
16
Igarashi, T. , and Kamiya, N. , 1972, “ Effects of Lubricants on Vibration and Sound of Ball Bearings,” J. Jpn. Soc. Lubr. Eng., 17(3), pp. 154–160 (in Japanese).
17
Bridgeman, P. W. , 1922, Dimensional Analysis, Yale University Press, New Haven, CT.
18
Langhaar, H. L. , 1951, Dimensional Analysis and Theory of Models, Wiley, New York.
19
ISO 1683-1983(E), Acoustics—Preferred Reference Quantities for Acoustic Levels, International Organization of Standardization, Switzerland.

Figures

Grahic Jump Location
Fig. 1

Test bearing

+Test bearing
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Test bearing
Grahic Jump Location
Fig. 2

Drive unit

+Drive unit
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Drive unit
Grahic Jump Location
Fig. 3

Measurement apparatus

+Measurement apparatus
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Measurement apparatus
Grahic Jump Location
Fig. 4

Measured Lp and La versus η0

+Measured Lp and La versus η0
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Measured Lp and La versus η0
Grahic Jump Location
Fig. 5

Sound and vibration time waveforms (V = 1.0 m/s)

+Sound and vibration time waveforms (V = 1.0 m/s)
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Sound and vibration time waveforms (V = 1.0 m/s)
Grahic Jump Location
Fig. 6

Sound and vibration spectra (V = 1.0 m/s)

+Sound and vibration spectra (V = 1.0 m/s)
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Sound and vibration spectra (V = 1.0 m/s)
Grahic Jump Location
Fig. 7

Plot of dimensionless products (Pp/η0 V) and (η0ξV/P)

+Plot of dimensionless products (Pp/η0 V) and (η0ξV/P)
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Plot of dimensionless products (Pp/η0 V) and (η0ξV/P)
Grahic Jump Location
Fig. 8

Plot of dimensionless products (Pa/V2) and (η0ξV/P)

+Plot of dimensionless products (Pa/V2) and (η0ξV/P)
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Plot of dimensionless products (Pa/V2) and (η0ξV/P)

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