ASTM D5706-11
(Test Method)Standard Test Method for Determining Extreme Pressure Properties of Lubricating Greases Using a High-Frequency, Linear-Oscillation (SRV) Test Machine
Standard Test Method for Determining Extreme Pressure Properties of Lubricating Greases Using a High-Frequency, Linear-Oscillation (SRV) Test Machine
SIGNIFICANCE AND USE
This laboratory test method can be used to quickly determine extreme pressure properties of lubricating greases at selected temperatures specified for use in applications where high-speed vibrational or start-stop motions are present with high Hertzian point contact. This test method has found wide application in qualifying lubricating greases used in constant velocity joints of front-wheel-drive automobiles. 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 extreme pressure properties of lubricating greases under high-frequency linear-oscillation motion using the SRV test machine. This test method can also be used for evaluating extreme pressure properties of lubricating fluid.
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.
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Designation: D5706 − 11
Standard Test Method for
Determining Extreme Pressure Properties of Lubricating
Greases Using a High-Frequency, Linear-Oscillation (SRV)
1
Test Machine
This standard is issued under the fixed designation D5706; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* G40Terminology Relating to Wear and Erosion
3
2.2 Other Standards:
1.1 This test method covers a procedure for determining
DIN EN ISO 683-17 Heat-treated Steels, alloy steels and
extreme pressure properties of lubricating greases under high-
free-cuttingsteels–Part17:Ballandrollerbearingsteels
frequency linear-oscillation motion using the SRV test ma-
DIN EN ISO 13565-2:1998Geometrical Product Specifica-
chine.Thistestmethodcanalsobeusedforevaluatingextreme
tions (GPS) – Surface texture: Profile method; Surfaces
pressure properties of lubricating fluid.
having stratified functional properties – Part 2: Height
1.2 The values stated in SI units are to be regarded as
characterizationusinglinearmaterialratiocurve(replaces
standard. No other units of measurement are included in this
DIN 4776:1990: Measurement of surface roughness; pa-
standard.
rametersR ,R ,R ,M ,M forthedescriptionofthe
K PK VK r1 r2
1.3 This standard does not purport to address all of the
material portion)
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
3. Terminology
priate safety and health practices and determine the applica-
3.1 Definitions:
bility of regulatory limitations prior to use.
3.1.1 break-in, n—in tribology, an initial transition process
occurring in newly established wearing contacts, often accom-
2. Referenced Documents
panied by transients in coefficient of friction or wear rate, or
2
2.1 ASTM Standards:
both, which are uncharacteristic of the given tribological
A295/A295MSpecification for High-Carbon Anti-Friction
system’s long-term behavior. G40
Bearing Steel
3.1.2 coeffıcient of friction, µ or f, n—in tribology, the
D217Test Methods for Cone Penetration of Lubricating
dimensionless ratio of the friction force (F) between two
Grease
bodies to the normal force (N) pressing these bodies together.
D4175 Terminology Relating to Petroleum, Petroleum
G40
Products, and Lubricants
D6425Test Method for Measuring Friction and Wear Prop- 3.1.3 Hertzian contact area, n—theapparentareaofcontact
erties of Extreme Pressure (EP) Lubricating Oils Using
between two nonconforming solid bodies pressed against each
SRV Test Machine other, as calculated from Hertz’s equations of elastic
D7421Test Method for Determining Extreme Pressure
deformation. G40
Properties of Lubricating Oils Using High-Frequency,
3.1.4 Hertzian contact pressure, n—magnitude of the pres-
Linear-Oscillation (SRV) Test Machine
sure at any specified location in a Hertzian contact area, as
E45Test Methods for Determining the Inclusion Content of
calculated from Hertz’s equations of elastic deformation. The
Steel
Hertzian contact pressure can also be calculated and reported
as maximum value P in the centre of the contact or as
max
1
P as average over the total contact area. D7421
This test method is under the jurisdiction of ASTM Committee D02 on
average
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
3.1.5 lubricant, n—any material interposed between two
Subcommittee D02.G0.04 on Functional Tests - Tribology.
surfaces that reduces the friction or wear, or both, between
Current edition approved Dec. 1, 2011. Published March 2012. Originally
ε1
approved in 1995. Last previous edition approved in 2011 as D5706–05(2011) . them. D4175
DOI: 10.1520/D5706-11.
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 AvailablefromDeutschesInstitutfurNormunge.V.(DIN),Burggrafenstrasse6,
the ASTM website. 10787 Berlin, Germany, http://www.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 ----------------------
D5706 − 11
FIG. 1 SRV Test Machine, Model III (left), Model 4 (right)
3.1.6 lubricating grease, n—a semi-fluid to solid product of 3.2.2.1 Discussion—In this test method, seizure is indicated
a dispersion of a thickener in a liquid lubricant. D217 by a sharp rise in the coefficient of friction, over steady state,
3.1.6.1 Discussion—Thedispe
...
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.
´1
Designation:D5706–05 (Reapproved 2011) Designation: D5706 – 11
Standard Test Method for
Determining Extreme Pressure Properties of Lubricating
Greases Using a High-Frequency, Linear-Oscillation (SRV)
1
Test Machine
This standard is issued under the fixed designation D5706; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1
´ NOTE—Updated 7.6 and Fig. 1, and added Note 3 editorially in July 2011.
1. Scope*
1.1 This test method covers a procedure for determining extreme pressure properties of lubricating greases under high-
frequencylinear-oscillationmotionusingtheSRVtestmachine.Thistestmethodcanalsobeusedforevaluatingextremepressure
properties of lubricating fluid.
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
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 Other Standards:
DIN EN ISO 683-17 Heat-treated Steels, alloy steels and free-cutting steels – Part 17 : Ball and roller bearing steels
DIN EN ISO 13565-2:1998 Geometrical Product Specifications (GPS) – Surface texture: Profile method; Surfaces having
stratified functional properties – Part 2: Height characterization using linear material ratio curve (replaces DIN 4776:1990:
Measurement of surface roughness; parameters R ,R ,R ,M ,M for the description of the material portion)
K PK VK r1 r2
3. Terminology
3.1 Definitions:
3.1.1 break-in, n—in tribology,aninitialtransitionprocessoccurringinnewlyestablishedwearingcontacts,oftenaccompanied
bytransientsincoefficient of friction or wear rate, orboth,whichareuncharacteristicofthegiventribologicalsystem’slong-term
behavior. G40
3.1.2 coeffıcient of friction, µ or f, n—in tribology, the dimensionless ratio of the friction force (F) between two bodies to the
normal force (N) pressing these bodies together. G40
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 July 1, 2011. Published August 2011. Originally approved in 1995. Last previous edition approved in 2005 as D5706–05. DOI:
10.1520/D5706-05R11E01.
´1
Current edition approved Dec. 1, 2011. Published March 2012. Originally approved in 1995. Last previous edition approved in 2011 as D5706–05(2011) . DOI:
10.1520/D5706-11.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@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 Deutsches Institut fur Normung e.V.(DIN), Burggrafenstrasse 6, 10787 Berlin, Germany, http://www.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 ----------------------
D5706 – 11
3.1.3 Hertzian contact area, n—the apparent area of contact between two nonconforming solid bodies pressed against each
other, as calculated from Hertz’s equations of elastic deformation. G40
3.1.4 Hertzian contact pressure, n—the magnitude of the pressure at any specified location in a Hertzian contact area, as
calculated from Hertz’s equations of elastic deformation. G40 —magnitude of the pressure at any specified location in a
Hertzian contact area, as calculated from He
...
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