ASTM-D4693 2012

$40.63

D4693-07(2012) Standard Test Method for Low-Temperature Torque of Grease-Lubricated Wheel Bearings

Published By	Publication Date	Number of Pages
ASTM	2012	8

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Category: ASTM

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Description

ASTM D4693-07-Reapproved2012

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

ASTM D4693

Scope

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 EPA’s 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.

Keywords

low temperature torque; lubricating grease; wheel bearing grease; Automotive wheel bearings; Calibration–petroleum analysis instrumentation; Lubricating grease; Rotation testing; Strain testing; Temperature tests–petroleum products; Torque–petroleum materials/applications; Viscosity–petroleum products

ICS Code

ICS Number Code 75.100 (Lubricants, industrial oils and related products)

DOI: 10.1520/D4693-07R12

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Summary of Test Method Significance and Use Apparatus FIG. 1
3	Reagents and Materials Calibration TABLE 1
4	FIG. 2 FIG. 2
5	Bearing Preparation FIG. 3
6	Procedure Calculation
7	Report Precision and Bias Keywords FIG. 4

Additional information

Standard Title	D4693-07(2012) Standard Test Method for Low-Temperature Torque of Grease-Lubricated Wheel Bearings
Published Code	ASTM
Publication Date	2012
Pages Count	8