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ASTM D4693-07(2012)

Historical Reaffirmation

Standard Test Method for Low-Temperature Torque of Grease-Lubricated Wheel Bearings

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1.1 This test method covers the determination of the extent to which a test grease retards the rotation of a specially-manufactured, spring-loaded, automotive-type wheel bearing assembly when subjected to low temperatures. Torque values, calculated from restraining-force determinations, are a measure of the viscous resistance of the grease. This test method was developed with greases giving torques of less than 35 N·m at 40°C.

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

1.3 WARNINGMercury has been designated by many regulatory agencies as a hazardous material that can cause central nervous system, kidney and liver damage. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury containing products. See the applicable product Material Safety Data Sheet (MSDS) for details and EPAs websitehttp://www.epa.gov/mercury/faq.htmfor additional information. Users should be aware that selling mercury and/or mercury containing products into your state or country may be prohibited by law.

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.


This test method differentiates among greases having distinctly different low-temperature characteristics. This test is used for specification purposes and correlates with its precursor which has been used to predict the performance of greases in automotive wheel bearings in low-temperature service. It is the responsibility of the user to determine the correlation with other types of service.

SDO ASTM: ASTM International
Document Number D4693
Publication Date April 15, 2012
Language en - English
Page Count 8
Revision Level 07(2012)
Supercedes
Committee D02.G0
Publish Date Document Id Type View
Nov. 1, 2007 D4693-07 Revision
Dec. 1, 2003 D4693-03 Revision
Jan. 1, 1997 D4693-97 Revision
Oct. 1, 2021 D4693-07R21 Reaffirmation
May 1, 2017 D4693-07R17 Reaffirmation
April 15, 2012 D4693-07R12 Reaffirmation
June 10, 1997 D4693-97R02E01 Reaffirmation