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.

References

References
1.
Ohta
,
H.
,
1999
, “
Sound of Linear Guideway Type Recirculating Linear Ball Bearings
,”
ASME J. Tribol.
,
121
(
4
), pp.
678
685
.
2.
Ohta
,
H.
, and
Hayashi
,
E.
,
2000
, “
Vibration of Linear Guideway Type Recirculating Linear Ball Bearings
,”
J. Sound Vib.
,
235
(
5
), pp.
847
861
.
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
.
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
.
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
.
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
.
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
.
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
.
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
.
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