This specification covers the establishment of the basic quality, physical/mechanical property, and test requirements for silicon nitride balls Classes I, II, and III to be used for ball bearings and specialty ball applications. Silicon nitride balls should be produced from either silicon nitride powder having the compositional limits from silicon metal powder.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers the establishment of the basic quality, physical/mechanical property, and test requirements for silicon nitride balls Classes I, II, and III to be used for ball bearings and specialty ball applications.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C1161 Test Method for Flexural Strength of Advanced Ceramics at Ambient Temperature
C1421 Test Methods for Determination of Fracture Toughness of Advanced Ceramics at Ambient Temperature
B46.1 Surface Texture (Surface Roughness, Waviness, and Lay) Application for copies should be addressed to the American Society of Mechanical Engineers (ASME), ASME International Headquarters, Three Park Ave., New York, NY 10016-5990, http://www.asme.org.
4505 Hardmetals--Metallographic Determination of Porosity and Uncombined Carbon
ANSI/ASQCZ1.4 Sampling Procedures and Tables for Inspection by Attributes Application for copies should be addressed to the American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
STD10 Metal Balls Application for copies should be addressed to the American Bearing Manufacturers Association, 1200 19th Street NW, Suite 300, Washington, DC 20036-2401.
R1607 Testing Method for Fracture Toughness of High Performance Ceramics
ENV843-5 Advanced Technical Ceramics--Monolithic Ceramics--Mechanical Properties at Room Temperature, Part 5, Statistical Analysis
ball bearings; bearing balls; ceramic; silicon nitride; Si3N4; precision balls; Ball/roller bearings--specifications; Precision balls; Silicon nitride (Si3N4) ;
ICS Number Code 21.100.01 (Bearings in general)
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Citing ASTM Standards
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