Standard Test Method for Determining Corrosion Preventive Properties of Lubricating Greases

SCOPE
1.1 This test method covers the determination of the corrosion preventive properties of greases using grease-lubricated tapered roller bearings stored under wet conditions. This test method is based on CRC Technique L 41² that shows correlations between laboratory results and service for grease lubricated aircraft wheel bearings.
1.2 Apparatus Dimensions—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 All Other Values—The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 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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Publication Date
31-May-2005
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ASTM D1743-05 - Standard Test Method for Determining Corrosion Preventive Properties of Lubricating Greases
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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AnAmerican National Standard
Designation:D1743–05
Standard Test Method for
Determining Corrosion Preventive Properties of Lubricating
1
Greases
This standard is issued under the fixed designation D 1743; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 3.1.1 corrosion, n—the chemical or electrochemical reac-
tion between a material, usually a metal, and its environment
1.1 This test method covers the determination of the corro-
that produces a deterioration of the material and its properties.
sion preventive properties of greases using grease-lubricated
3.1.1.1 Discussion—In this test method, corrosion is mani-
tapered roller bearings stored under wet conditions. This test
2
fested by red rust or black stains on the bearing race. Stains,
method is based on CRC Technique L 41 that shows correla-
through which the underlying metal surface is still visible, are
tions between laboratory results and service for grease lubri-
not considered corrosion in Test Method D 1743 and shall be
cated aircraft wheel bearings.
ignored.
1.2 Apparatus Dimensions—The values stated in inch-
pound units are to be regarded as standard.The values given in
4. Summary of Test Method
parentheses are mathematical conversions to SI units that are
4.1 New, cleaned, and lubricated bearings are run under a
provided for information only and are not considered standard.
light thrust load for 60 6 3 s to distribute the lubricant in a
1.3 All Other Values—ThevaluesstatedinSIunitsaretobe
pattern that might be found in service. The bearings are
regarded as the standard. The values given in parentheses are
exposed to water, then stored for 48 60.5hat52 6 1°C (125
for information only.
6 2°F) and 100 % relative humidity. After cleaning, the
1.4 This standard does not purport to address all of the
bearing cups are examined for evidence of corrosion.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5. Significance and Use
priate safety and health practices and determine the applica-
5.1 This test method differentiates the relative corrosion-
bility of regulatory limitations prior to use.
preventive capabilities of lubricating greases under the condi-
3
tions of the test.
2. Referenced Documents
2.1 ASTM Standards:
6. Apparatus
D 1193 Specification for Reagent Water
6.1 Bearings—Timken bearing cone and roller assembly
G 15 Terminology Relating to Corrosion and Corrosion
4,5
LM11949, and cup LM11910.
Testing
1
6.2 Motor, 1750 6 50-rpm speed, ⁄15 hp (min).
5,6
3. Terminology 6.3 Bearing Holder (see Fig. 1) consists of a 1 6 0.10 kg
weight, upper and lower plastic collars for the bearing cone
3.1 Definitions of Terms Specific to This Standard:
(PartsAand B), a metal screw, a plastic collar for the cup (Part
C), and a plastic jar with a screw cap.
,
5 6
6.4 Run-in Stand, as shown in Fig. 2.
5,6
1
This test method is under the jurisdiction of ASTM Committee D02 on 6.5 Spindle/Thrust Loading Device, as shown in Fig. 3.
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
(See Table 1 for metric equivalents.)
D02.G0 on Lubricating Grease.
CurrenteditionapprovedJune1,2005.PublishedJuly2005.Originallyapproved
in 1960. Last previous edition approved in 2001 as D 1743–01.
2 4
“Research Technique for Determining Rust-Preventive Properties of Lubricat- The sole source of supply of the apparatus known to the committee at this time
ing Greases in the Presence of Free Water,” L-41-957, undated, Coordinating is The Timken Co., Canton, OH 44706.
5
Research Council, Inc., 219 Perimeter Center Parkway, Atlanta, GA 30346. If you are aware of alternative suppliers, please provide this information to
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or ASTM International Headquarters. Your comments will receive careful consider-
1
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM ation at a meeting of the responsible technical committee, which you may attend.
6
Standards volume information, refer to the standard’s Document Summary page on The sole source of supply of the apparatus known to the committee at this time
the ASTM website. is Falex Corporation, 1020 Airpark Drive, Sugar Grove, IL 60554–9585.
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2959, United States.
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D1743–05
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