ASTM D7594-11
(Test Method)Standard Test Method for Determining Fretting Wear Resistance of Lubricating Greases Under High Hertzian Contact Pressures Using a High-Frequency, Linear-Oscillation (SRV) Test Machine
Standard Test Method for Determining Fretting Wear Resistance of Lubricating Greases Under High Hertzian Contact Pressures Using a High-Frequency, Linear-Oscillation (SRV) Test Machine
SIGNIFICANCE AND USE
This test method can be used to determine anti-wear properties and coefficient of friction of greases in order to prevent “fretting” wear under linear oscillation with associated low strokes and high Hertzian contact pressures at selected temperatures and loads specified for use in applications in which induced, high-speed vibrational motions are present for extended periods of time. It has found application as a screening test for grease lubricants used in ball and roller bearings, roller or ball screw (spindle) drives or side shaft systems (Tripode or Rzeppa type) for example, so-called constant velocity (CV) joints. 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 lubricating action of greases in order to prevent “fretting” wear under linear oscillation with associated low strokes and high Hertzian contact pressures under high-frequency linear-oscillation motion using the SRV test machine. By performing additional, nonmandatory extreme-pressure tests in accordance with Test Method D5706, the test grease should be shown to be able to withstand a Hertzian contact pressure of at least 2200 MPa without adhesive failure.
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 and health practices and determine the applicability of regulatory limitations prior to use.
General Information
Relations
Buy Standard
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D7594 − 11
Standard Test Method for
Determining Fretting Wear Resistance of Lubricating
Greases Under High Hertzian Contact Pressures Using a
1
High-Frequency, Linear-Oscillation (SRV) Test Machine
This standard is issued under the fixed designation D7594; 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* D6425 Test Method for Measuring Friction and Wear Prop-
erties of Extreme Pressure (EP) Lubricating Oils Using
1.1 This test method covers a procedure for determining the
SRV Test Machine
lubricating action of greases in order to prevent “fretting” wear
D7421 Test Method for Determining Extreme Pressure
under linear oscillation with associated low strokes and high
Properties of Lubricating Oils Using High-Frequency,
Hertzian contact pressures under high-frequency linear-
Linear-Oscillation (SRV) Test Machine
oscillation motion using the SRV test machine. By performing
E45 Test Methods for Determining the Inclusion Content of
additional, nonmandatory extreme-pressure tests in accordance
Steel
withTestMethodD5706,thetestgreaseshouldbeshowntobe
G40 Terminology Relating to Wear and Erosion
able to withstand a Hertzian contact pressure of at least
3
2.2 DIN Standards:
2200 MPa without adhesive failure.
DIN 51834-3:2008-12 Testing of lubricants – Tribological
1.2 The values stated in SI units are to be regarded as
test in translatory oscillation apparatus – Part 3: Determi-
standard. No other units of measurement are included in this
nation of tribological behaviour of materials in coopera-
standard.
tion with lubricants
1.3 This standard does not purport to address all of the
DIN 51631:1999 Special-boiling-point spirits - Require-
safety concerns, if any, associated with its use. It is the
ments and testing
responsibility of the user of this standard to establish appro-
DIN EN ISO 683-17 Heat-treated steels, alloy steels and
priate safety and health practices and determine the applica-
free-cutting steels - Part 17: Ball and roller bearing steels
bility of regulatory limitations prior to use.
(replaces DIN 17230-1980)
DIN EN ISO 13565-2:1998 Geometrical Product Specifica-
2. Referenced Documents
tions (GPS) - Surface texture: Profile method - Surfaces
2
2.1 ASTM Standards: having stratified functional properties - Part 2: Height
characterization using the linear material ratio curve
A295/A295M Specification for High-Carbon Anti-Friction
Bearing Steel (replaces DIN 4776-1990)
D217 Test Methods for Cone Penetration of Lubricating
3. Terminology
Grease
D4175 Terminology Relating to Petroleum, Petroleum
3.1 Definitions:
Products, and Lubricants
3.1.1 break-in, n—in tribology, an initial transition process
D5706 Test Method for Determining Extreme Pressure
occurring in newly established wearing contacts, often accom-
Properties of Lubricating Greases Using a High-
panied by transients in coefficient of friction or wear rate, or
Frequency, Linear-Oscillation (SRV) Test Machine
both,thatareuncharacteristicofthegiventribologicalsystem’s
long-term behavior. G40
3.1.2 coeffıcient of friction, µ or ƒ, n—in tribology, the
1
This test method is under the jurisdiction of ASTM Committee D02 on
dimensionless ratio of the friction force (F) between two
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
bodies to the normal force (N) pressing these bodies together.
Subcommittee D02.G0.04 on Functional Tests - Tribology.
Current edition approved Dec. 1, 2011. Published March 2012. Originally G40
approved in 2010. Last previous edition approved in 2010 as D7594–10.
DOI:10.1520/D7594-11.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from Available from Beuth Verlag GmbH (DIN-- DIN Deutsches
Standards volume information, refer to the standard’s Document Summary page on Institut fur Normung e.V.), Burggrafenstrasse 6, 10787, Berlin, Germany, http://
the ASTM website. www.en.din.de.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D7594 − 11
3.1.3 Hertzian contact area, n—apparent area of contact by a sharp rise in the coefficient of friction, over steady state,
between two nonconforming solid bodies pressed against each of greater than 0.2 for over 20 s, or a coefficient of friction
other, as calculated from Hertz’ equations of elastic >0.35 or by any examples shown in Test
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D7594–10 Designation: D7594 – 11
Standard Test Method for
Determining Fretting Wear Resistance of Lubricating
Greases Under High Hertzian Contact Pressures Using a
1
High-Frequency, Linear-Oscillation (SRV) Test Machine
This standard is issued under the fixed designation D7594; 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*
1.1 This test method covers a procedure for determining the lubricating action of greases in order to prevent “fretting” wear
under linear oscillation with associated low strokes and high Hertzian contact pressures under high-frequency linear-oscillation
motion using the SRV test machine. By performing additional, nonmandatory extreme-pressure tests in accordance with Test
Method D5706, the test grease should be shown to be able to withstand a Hertzian contact pressure of at least 2200 MPa without
adhesive failure.
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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
A295/A295M Specification for High-Carbon Anti-Friction Bearing Steel
D217 Test Methods for Cone Penetration of Lubricating Grease
D4175 Terminology Relating to Petroleum, Petroleum Products, and Lubricants
D5706 Test Method for Determining Extreme Pressure Properties of Lubricating Greases Using a High-Frequency,
Linear-Oscillation (SRV) Test Machine
D6425 Test Method for Measuring Friction and Wear Properties of Extreme Pressure (EP) Lubricating Oils Using SRV Test
Machine
D7421 Test Method for Determining Extreme Pressure Properties of Lubricating Oils Using High-Frequency, Linear-
Oscillation (SRV) Test Machine
E45 Test Methods for Determining the Inclusion Content of Steel
G40 Terminology Relating to Wear and Erosion
3
2.2 DIN Standards:
DIN 51834-3:2008-12 Testing of lubricants – Tribological test in translatory oscillation apparatus – Part 3: Determination of
tribological behaviour of materials in cooperation with lubricants
DIN 51631:1999 Special-boiling-point spirits - Requirements and testing
DIN EN ISO 683-17 Heat-treated steels, alloy steels and free-cutting steels - Part 17: Ball and roller bearing steels (replaces
DIN 17230-1980)
DIN EN ISO 13565-2:1998 Geometrical Product Specifications (GPS) - Surface texture: Profile method - Surfaces having
stratifiedfunctionalproperties-Part2:Heightcharacterizationusingthelinearmaterialratiocurve(replacesDIN4776-1990)
2.3 ISO Standards
ISO 1250:1972 Mineral solvents for paints -- White spirits and related hydrocarbon solvents
1
This test method is under the jurisdiction ofASTM Committee D02 on Petroleum Products and Lubricants and is the direct responsibility of Subcommittee D02.G0.04
on Functional Tests - Tribology.
Current edition approved May 1, 2010. Published August 2010. DOI:10.1520/D7594-10.
CurrenteditionapprovedDec.1,2011.PublishedMarch2012.Originallyapprovedin2010.Lastpreviouseditionapprovedin2010asD7594–10.DOI:10.1520/D7594-11.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from Available from Beuth Verlag GmbH (DIN-- DIN Deutsches Institut fur Normung e.V.), Burggrafenstrasse 6, 10787, Berlin, Germany, http://
www.en.din.de.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D7594 – 11
3. Terminology
3.1 Definitions:
3.1.1 break-in, n—in tribology,aninitialtransitionprocessoccurringinnewlyestablishedwearingcontacts,oftenaccompanied
by transients in coefficient of friction or wear rate, or both, that are uncharacteristic of the given tribological system’s long-term
behavior. G40
2
---------------------- Page: 2 ----------------------
D7594 – 11
3.1.2 coeffıcient of fric
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.