Sequential four-ball study of some lubricating oils

Joseph Manuel Sr Perez, David E. Weller, J. Larry Duda

Research output: Contribution to specialist publicationArticle

7 Citations (Scopus)

Abstract

A study of several oils was conducted using the Sequential Four-Ball Test (SQFBT). The SQFBT was developed to simulate results obtained in a full-scale hydraulic pump stand test and off-highway vehicle field tests. The Δ scar, the increase in wear over the Hertz elastic indentation value, was used to evaluate wear and scuffing characteristics of the fluids tested. A series of ASTM round-robin hydraulic test fluids were evaluated and the results of the SQFBT agreed with pump stand test results. In addition, several commercial oils and some base fluids were evaluated to demonstrate the ability of the SQFBT test to be used as a research or screening tool. The base fluids evaluated included synthetic fluids, natural oils, and mineral oils. Some friction and wear data were evaluated statistically to obtain repeatability and reproducibility of the SQFBT. Differences in chemical structure are shown to affect friction and wear results.

Original languageEnglish (US)
Pages28-32
Number of pages5
Volume55
No9
Specialist publicationLubrication Engineering
StatePublished - Sep 1 1999

Fingerprint

Lubricating oils
Fluids
Wear of materials
Hydraulics
Pumps
Friction
Mineral oils
Indentation
Screening
Oils

All Science Journal Classification (ASJC) codes

  • Industrial and Manufacturing Engineering

Cite this

Perez, J. M. S., Weller, D. E., & Duda, J. L. (1999). Sequential four-ball study of some lubricating oils. Lubrication Engineering, 55(9), 28-32.
Perez, Joseph Manuel Sr ; Weller, David E. ; Duda, J. Larry. / Sequential four-ball study of some lubricating oils. In: Lubrication Engineering. 1999 ; Vol. 55, No. 9. pp. 28-32.
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Perez, JMS, Weller, DE & Duda, JL 1999, 'Sequential four-ball study of some lubricating oils' Lubrication Engineering, vol. 55, no. 9, pp. 28-32.

Sequential four-ball study of some lubricating oils. / Perez, Joseph Manuel Sr; Weller, David E.; Duda, J. Larry.

In: Lubrication Engineering, Vol. 55, No. 9, 01.09.1999, p. 28-32.

Research output: Contribution to specialist publicationArticle

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Perez JMS, Weller DE, Duda JL. Sequential four-ball study of some lubricating oils. Lubrication Engineering. 1999 Sep 1;55(9):28-32.