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ASTM D8165-24

Current Revision

Standard Test Method for Evaluation of Load-Carrying Capacity of Lubricants Used in Hypoid Final-Drive Axles Operated under Low-Speed and High-Torque Conditions

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1.1 This test method, commonly referred to as the L-37-1 test, describes a test procedure for evaluating the load-carrying capacity, wear performance, and extreme pressure properties of a gear lubricant in a hypoid axle under conditions of low-speed, high-torque operation.3

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.2.1 Exceptions—Where there is no direct SI equivalent such as National Pipe threads/diameters, tubing size, or where there is a sole source supply equipment specification.

1.2.1.1 The drawing in Annex A6 is in inch-pound units.

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific warning statements are provided in 7.2 and 10.1.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


5.1 This test method measures a lubricant's ability to protect hypoid final drive axles from abrasive wear, adhesive wear, plastic deformation, and surface fatigue when subjected to low-speed, high-torque conditions. Lack of protection can lead to premature gear or bearing failure, or both.

5.2 This test method is used, or referred to, in specifications and classifications of rear-axle gear lubricants such as:

5.2.1 Specification D7450.

5.2.2 American Petroleum Institute (API) Publication 1560.

5.2.3 SAE J308.

5.2.4 SAE J2360.

SDO ASTM: ASTM International
Document Number D8165
Publication Date May 1, 2024
Language en - English
Page Count 18
Revision Level 24
Supercedes
Committee D02.B0.03
Publish Date Document Id Type View
May 1, 2024 D8165-24 Revision
July 1, 2022 D8165-22 Revision
April 1, 2021 D8165-21E01 Revision
April 1, 2021 D8165-21 Revision
Sept. 1, 2020 D8165-20A Revision
May 1, 2020 D8165-20 Revision
Dec. 1, 2019 D8165-19A Revision
July 1, 2019 D8165-19 Revision
Dec. 1, 2017 D8165-17 Revision