1. 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 412 that shows correlations between laboratory results and service for grease lubricated aircraft wheel bearings.
1.2 Apparatus Dimensions - 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.
1.3 All Other Values - The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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.
2. Referenced Documents
2.1 ASTM Standards
D 1193 Specification for Reagent Water
3. Terminology
3.1 Definitions of Terms Specific to This Standard 3.1.1 corrosion, n-the chemical or electrochemical reaction between a material, usually a metal, and its environment that produces a deterioration of the material and its properties.
3.1.1.1 Discussion - In this test method, corrosion is manifested by red rust or black stains on the bearing race. Stains, through which the underlying metal surface is still visible, are not considered corrosion in Test Method D 1743 and shall be ignored.
