ASTM D1743-01
(Test Method)Standard Test Method for Determining Corrosion Preventive Properties of Lubricating Greases
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 41that shows correlations between laboratory results and service for grease lubricated aircraft wheel bearings.
1.2 The values stated in acceptable inch-pound units for the apparatus dimensions are to be regarded as standard, and the metric conversions are provided for information only. All other values stated in acceptable metric units are 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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AnAmerican National Standard
Designation:D1743–01
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 3.1.2 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 D 1743 and shall be
tapered roller bearings stored under wet conditions. This test
2
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 The values stated in acceptable inch-pound units for the
light thrust load for 60 6 3 s to distribute the lubricant in a
apparatus dimensions are to be regarded as standard, and the
pattern that might be found in service. The bearings are
metric conversions are provided for information only.All other
exposed to water, then stored for 48 60.5hat52 6 1°C (125
values stated in acceptable metric units are standard.
6 2°F) and 100 % relative humidity. After cleaning, the
1.3 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-
tions of the test.
2. Referenced Documents
2.1 ASTM Standards:
6. Apparatus
D 235 Specification for Mineral Spirits (Petroleum Spirits)
3 6.1 Bearings—Timken bearing cone and roller assembly
(Hydrocarbon Drycleaning Solvent)
6
LM11949, and cup LM11910.
4
D 1193 Specification for Reagent Water
1
6.2 Motor, 1750 6 50-rpm speed, ⁄15 hp (min).
G 15 Terminology Relating to Corrosion and Corrosion
7
6.3 Bearing Holder (see Fig. 1) consists of a 1 6 0.10 kg
5
Testing
weight, upper and lower plastic collars for the bearing cone
(PartsAand B), a metal screw, a plastic collar for the cup (Part
3. Terminology
C), and a plastic jar with a screw cap.
3.1 Definitions of Terms Specific to This Standard:
7
6.4 Run-in Stand, as shown in Fig. 2.
3.1.1 corrosion, n— the chemical or electrochemical reac-
7
6.5 Spindle/Thrust Loading Device, as shown in Fig. 3.
tion between a material, usually a metal, and its environment
(See Table 1 for metric equivalents.)
that produces a deterioration of the material and its properties.
6.6 Mechanical Grease Packer, as shown in Fig. 4 and Fig.
5.
8
1
This test method is under the jurisdiction of ASTM Committee D02 on 6.7 Pliers, as shown in Fig. 6.
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
6.8 Syringe, of at least 100-mLvolume and with a needle of
D02.G on Lubricating Grease.
at least 16 gage and a minimum length of 100 mm (4 in.).
Current edition approved Jan. 10, 2001. Published March 2001. Originally
e1
published as D 1743 – 60 T. Last previous edition D 1743 – 94 .
2
“Research Technique for Determining Rust-Preventive Properties of Lubricat-
6
ing Greases in the Presence of Free Water,” L-41-957, undated, Coordinating Manufactured by The Timken Co., Canton, OH 44706.
7
Research Council, Inc., 219 Perimeter Center Parkway, Atlanta, GA 30346. ThisequipmentisavailablefromFalexCorporation,1020AirparkDrive,Sugar
3
Annual Book of ASTM Standards, Vol 06.04. Grove, IL 60554–9585.
4 8
Annual Book of ASTM Standards, Vol 11.01. AWaldes Truarc Plier No. 4 available from Truarc Co. or similar, modified as
5
Annual Book of ASTM Standards, Vol 03.02. in Fig. 6.
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D1743
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 31- ⁄4 FILLISTER HD. MACH. SCREW S.S. 1
7 O RING 1
8 BEARING HOLDER 1
9 PLASTIC JAR 1
10 O RING 1
FIG. 1 Bearing Holder Assembly
9
6.9 Timer, capable of measuring a 60 6 3-s
...
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