ASTM D1743-05a

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact ASTM
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An American National Standard
Designation:D1743–05a
Standard Test Method for
Determining Corrosion Preventive Properties of Lubricating
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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* through which the underlying metal surface is still visible, are
not considered corrosion in Test Method D 1743 and shall be
1.1 This test method covers the determination of the corro-
ignored.
sion preventive properties of greases using grease-lubricated
tapered roller bearings stored under wet conditions. This test
4. Summary of Test Method
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method is based on CRC Technique L 41 that shows correla-
4.1 New, cleaned, and lubricated bearings are run under a
tions between laboratory results and service for grease lubri-
light thrust load for 60 6 3 s to distribute the lubricant in a
cated aircraft wheel bearings.
pattern that might be found in service. The bearings are
1.2 Apparatus Dimensions—The values stated in inch-
exposed to water, then stored for 48 60.5hat52 6 1°C (125
pound units are to be regarded as standard.The values given in
6 2°F) and 100 % relative humidity. After cleaning, the
parentheses are mathematical conversions to SI units that are
bearing cups are examined for evidence of corrosion.
provided for information only and are not considered standard.
1.3 All Other Values—ThevaluesstatedinSIunitsaretobe
5. Significance and Use
regarded as the standard. The values given in parentheses are
5.1 This test method differentiates the relative corrosion-
for information only.
preventive capabilities of lubricating greases under the condi-
1.4 This standard does not purport to address all of the
tions of the test.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
6. Apparatus
priate safety and health practices and determine the applica-
6.1 Bearings—Timken bearing cone and roller assembly
bility of regulatory limitations prior to use.
,
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LM11949, and cup LM11910.
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6.2 Motor, 1750 6 50-rpm speed, ⁄15 hp (min).
2. Referenced Documents
6.3 Bearing Holder, consists of a 1 6 0.10 kg weight, upper
2.1 ASTM Standards:
and lower plastic collars for the bearing cone (Parts A and B),
D 1193 Specification for Reagent Water
ametalscrew,andaplasticcollarforthecup(PartC).(SeeFig.
3. Terminology 1.)
6.4 Plastic Test Jar, as shown in Fig. 2.
3.1 Definitions of Terms Specific to This Standard:
6.5 Run-in Stand, as shown in Fig. 3.
3.1.1 corrosion, n—the chemical or electrochemical reac-
6.6 Spindle/Thrust Loading Device, as shown in Fig. 4. (See
tion between a material, usually a metal, and its environment
Table 1 for metric equivalents.)
that produces a deterioration of the material and its properties.
6.7 Mechanical Grease Packer, as shown in Fig. 5 and Fig.
3.1.1.1 Discussion—In this test method, corrosion is mani-
6.
fested by red rust or black stains on the bearing race. Stains,
,
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6.8 Pliers, as shown in Fig. 7.
6.9 Syringe, of at least 100-mLvolume and with a needle of
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This test method is under the jurisdiction of ASTM Committee D02 on
at least 16 gage and a minimum length of 100 mm (4 in.).
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
D02.G0 on Lubricating Grease.
Current edition approved July 1, 2005. Published July 2005. Originally approved
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in 1960. Last previous edition approved in 2005 as D 1743–05. The sole source of supply of the apparatus known to the committee at this time
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“Research Technique for Determining Rust-Preventive Properties of Lubricat- is The Timken Co., Canton, OH 44706.
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ing Greases in the Presence of Free Water,” L-41-957, undated, Coordinating If you are aware of alternative suppliers, please provide this information to
Research Council, Inc., 219 Perimeter Center Parkway, Atlanta, GA 30346. ASTM International Headquarters. Your comments will receive careful consider-
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or ation at a meeting of the responsible technical committee, which you may attend.
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contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM The sole source of supply of the Waldes Truarc Plier No. 4 modified as in Fig.
Standards volume information, refer to the standard’s Document Summary page on 7 known to the committee at this time is TRUARC Company LLC, 70 East Willow
the ASTM website. Street, Millburn, NJ 07041.
*A Summary of Changes section appears at t
...