ASTM D1743-05ae1

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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 D1743; 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.
This standard has been approved for use by agencies of the Department of Defense.
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´ NOTE—Editorially replaced Stoddard solvent with mineral spirits to match approved change to 7.5 in December 2005.
1. Scope* 3.1.1.1 Discussion—In this test method, corrosion is mani-
fested by red rust or black stains on the bearing race. Stains,
1.1 This test method covers the determination of the corro-
through which the underlying metal surface is still visible, are
sion preventive properties of greases using grease-lubricated
not considered corrosion in Test Method D1743 and shall be
tapered roller bearings stored under wet conditions. This test
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ignored.
method is based on CRC Technique L 41 that shows correla-
tions between laboratory results and service for grease lubri-
4. Summary of Test Method
cated aircraft wheel bearings.
4.1 New, cleaned, and lubricated bearings are run under a
1.2 Apparatus Dimensions—The values stated in SI units
light thrust load for 60 6 3 s to distribute the lubricant in a
are to be regarded as standard.The values given in parentheses
pattern that might be found in service. The bearings are
are for information only.
exposed to water, then stored for 48 60.5hat52 6 1°C (125
1.3 All Other Values—ThevaluesstatedinSIunitsaretobe
6 2°F) and 100 % relative humidity. After cleaning, the
regarded as standard. No other units of measurement are
bearing cups are examined for evidence of corrosion.
included in this standard.
1.4 This standard does not purport to address all of the
5. Significance and Use
safety concerns, if any, associated with its use. It is the
5.1 This test method differentiates the relative corrosion-
responsibility of the user of this standard to establish appro-
preventive capabilities of lubricating greases under the condi-
priate safety and health practices and determine the applica-
tions of the test.
bility of regulatory limitations prior to use.
3 6. Apparatus
2. Referenced Documents
6.1 Bearings—Timken bearing cone and roller assembly
2.1 ASTM Standards:
4,5
LM11949, and cup LM11910.
D1193 Specification for Reagent Water
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6.2 Motor, 1750 6 50-rpm speed, ⁄15 hp (min).
6.3 Bearing Holder, consists of a 1 6 0.10 kg weight, upper
3. Terminology
and lower plastic collars for the bearing cone (Parts A and B),
3.1 Definitions of Terms Specific to This Standard:
ametalscrew,andaplasticcollarforthecup(PartC).(SeeFig.
3.1.1 corrosion, n—the chemical or electrochemical reac-
1.)
tion between a material, usually a metal, and its environment
6.4 Plastic Test Jar, as shown in Fig. 2.
that produces a deterioration of the material and its properties.
6.5 Run-in Stand, as shown in Fig. 3.
6.6 Spindle/Thrust Loading Device, as shown in Fig. 4. (See
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This test method is under the jurisdiction of ASTM Committee D02 on
Table 1 for metric equivalents.)
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
6.7 Mechanical Grease Packer, as shown in Fig. 5 and Fig.
D02.G0 on Lubricating Grease.
6.
Current edition approved July 1, 2005. Published July 2005. Originally approved
in 1960. Last previous edition approved in 2005 as D1743–05. DOI: 10.1520/
D1743-05AE01.
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“Research Technique for Determining Rust-Preventive Properties of Lubricat-
ing Greases in the Presence of Free Water,” L-41-957, undated, Coordinating
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Research Council, Inc., 219 Perimeter Center Parkway, Atlanta, GA 30346. The sole source of supply of the apparatus known to the committee at this time
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or is The Timken Co., Canton, OH 44706.
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Standards volume information, refer to the standard’s Document Summary page on ASTM International Headquarters. Your comments will receive careful consider-
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the ASTM website. ation at a meeting of the responsible technical committee, which you may attend.
*A Summary of Changes section appears at the end of this standard.
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D1743–05a
KEY DESCRIPTION QUANTITY
1PISTON 1
2 O RING 1
3 WEIGHT 1
4 UPPER FLANGE 1
5 LOWER FLANGE 1
1 1
6 ⁄4 −20 3 1-
...