Standard Test Method for Measuring Friction and Wear Properties of Greases Under Rolling Motion Using SRV Test Machine

SIGNIFICANCE AND USE
5.1 This test method can be used to determine anti-wear properties and coefficients of friction of greases under rolling type of movement at selected temperatures and loads specified for use in slip-rolling contacts in which high-speed vibrational or start-stop motions are present for extended periods of time under initial high Hertzian line contact pressures. It has found application as a screening test for lubricants used in gears, rolling bearings or cam/follower systems. Users of this test method should determine whether results correlate with field performance or other applications.
SCOPE
1.1 This test method covers a procedure for determining the coefficient of friction of greases and their ability to protect against wear under a rolling type of motion when subjected to high-frequency, linear oscillation.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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Published
Publication Date
31-Oct-2023
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ASTM D8317-23 - Standard Test Method for Measuring Friction and Wear Properties of Greases Under Rolling Motion Using SRV Test Machine
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D8317 − 23
Standard Test Method for
Measuring Friction and Wear Properties of Greases Under
1
Rolling Motion Using SRV Test Machine
This standard is issued under the fixed designation D8317; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope Oscillation (SRV) Test Machine
E45 Test Methods for Determining the Inclusion Content of
1.1 This test method covers a procedure for determining the
Steel
coefficient of friction of greases and their ability to protect
G40 Terminology Relating to Wear and Erosion
against wear under a rolling type of motion when subjected to
3
2.2 DIN Standards:
high-frequency, linear oscillation.
DIN EN ISO 683–17 Heat-treated steels, alloy steels and
1.2 The values stated in SI units are to be regarded as
free-cutting steels – Part 17: Ball and roller bearing steels
standard. No other units of measurement are included in this
DIN 5402-1 Rolling bearings - Parts of rolling bearings –
standard.
Part 1: Cylindrical rollers
1.3 This standard does not purport to address all of the
DIN 51631:2019 Mineral spirits; special boiling point spir-
safety concerns, if any, associated with its use. It is the
its; requirements
responsibility of the user of this standard to establish appro-
DIN 51834 Tribological Test in the Translatory Oscillation
priate safety, health, and environmental practices and deter-
Apparatus (Part 4: Determination of friction and wear data
mine the applicability of regulatory limitations prior to use.
for lubricating oils with the cylindrical roller-disk geom-
1.4 This international standard was developed in accor-
etry)
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the 3. Terminology
Development of International Standards, Guides and Recom-
3.1 Definitions:
mendations issued by the World Trade Organization Technical
3.1.1 For definitions of terms used in this test method, refer
Barriers to Trade (TBT) Committee.
to Terminologies D4175 or G40.
3.1.2 break-in, n—in tribology, an initial transition process
2. Referenced Documents
occurring in newly established wearing contacts, often accom-
2
2.1 ASTM Standards:
panied by transients in coefficient of friction or wear rate, or
A295 Specification for High-Carbon Anti-Friction Bearing
both, that are uncharacteristic of the given tribological system’s
Steel
longterm behavior. (Synonym: run-in, wear-in)
D235 Specification for Mineral Spirits (Petroleum Spirits)
3.1.3 coeffıcient of friction μ or f, n—in tribology, the
(Hydrocarbon Dry Cleaning Solvent)
dimensionless ratio of the friction force (F ) between two
f
D4175 Terminology Relating to Petroleum Products, Liquid
bodies to the normal force (F ) pressing these bodies together.
n
Fuels, and Lubricants
μ 5 ~F ⁄ F ! (1)
D6425 Test Method for Measuring Friction and Wear Prop- f n
erties of Extreme Pressure (EP) Lubricating Oils Using
3.1.4 extreme pressure (EP) lubricant, n—formulations
SRV Test Machine whose effects may become observable at different operating
D7755 Practice for Determining the Wear Volume on Stan-
conditions, preventing adhesive wear under mixed or boundary
dard Test Pieces Used by High-Frequency, Linear- lubrication regimes and are characterized by an increased load
carrying capacity or increased tribofilm strength.
3.1.5 Hertzian contact area, n—the apparent area of contact
1
This test method is under the jurisdiction of ASTM Committee D02 on
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of between two nonconforming solid bodies pressed against each
Subcommittee D02.G0.04 on Functional Tests - Tribology.
other, as calculated from Hertz’s equations of elastic deforma-
Current edition approved Nov. 1, 2023. Published January 2024. DOI: 10.1520/
tion.
D8317-23.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Available from Deutsches Institut für Normung, Beuth Verlag GmbH, Burg-
the ASTM website. grafenstraße 6, D-10787 Berlin, Germany, http://www.din.de.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D8317 − 23
those specified in this test method. The test rollers yield Hertzian
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