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ASTM-D6121:2008 Edition

ASTM-D6121:2008 Edition

$44.96

D6121-08a Standard Test Method for Evaluation of Load-Carrying Capacity of Lubricants Under Conditions of Low Speed and High Torque Used for Final Hypoid Drive Axles

Published By Publication Date Number of Pages
ASTM 2008 18
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1.1 This test method is commonly referred to as the L-37 test. This test method covers a test procedure for evaluating the load-carrying, wear, and extreme pressure properties of a gear lubricant in a hypoid axle under conditions of low-speed, high-torque operation.

1.2 This test method also provides for the running of the low axle temperature (Canadian) L-37 test. The procedure for the low axle temperature (Canadian) L-37 test is identical to the standard L-37 test with the exceptions of the items specifically listed in Annex A6. The procedure modifications listed in Annex A6 refer to the corresponding section of the standard L-37 test method.

1.3 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.

1.4 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. Specific warning information is given in Sections 4 and 7.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Terminology
2 Summary of Test Method
Significance and Use
Apparatus
3 Reagents and Materials
Preparation of Apparatus
4 Calibration and Standardization
5 Test Procedure
6 Axle Post Test Measurements
Determination of Test Results
7 Report
Precision and Bias
Keywords
TABLE 1
8 A1. THE ROLE OF THE ASTM TEST MONITORING CENTER (TMC)
A1.1
A1.2 Information Letters
A1.3
A1.4
9 A2. AXLE COVER EXAMPLE
FIG. A2.1
10 A3. RIGID AXLE MOUNT EXAMPLE
FIG. A3.1
11 A4. COVER PLATE TEMPERATURE SENSOR LOCATING DEVICE
FIG. A4.1
12 A5. AXLE COOLING SYSTEM
FIG. A5.1
13 FIG. A5.2
14 A6. TEST VERSIONS AND AXLE PART NUMBERS
A6.1
A6.2
A6.3 L-37 Canadian Version Test Requirements
TABLE A6.1
15 A7. L-37 TEST REPORT FORMS and DATA DICTIONARY
A7.1
A8. TEST VALIDITY CALCULATION AND LIMITS
A8.1
A8.2 Downtime Limits
A8.3 Deviation from Test Operating Parameters
A9. GEAR RATING RULES
A9.1
A9.2 Severity Levels
A9.3
TABLE A8.1
16 A9.4 Rating with Magnification
TABLE A9.1
17 A10. C1L425/P4L415A AND V1L303/P4L514A (NONLUBRITED HARDWARE) PITTING/SPALLING EXCLUSION AREA
A10.1
A10.2
FIG. A10.1
18 A11. GEAR BATCH EXCLUSIONS
A11.1
TABLE A11.1

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