ASTM F2094-01

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: F 2094 – 01
Standard Specification for
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Silicon Nitride Bearing Balls
This standard is issued under the fixed designation F 2094; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
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1. Scope Materials by Thermomechanical Analysis
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E 1417 Practice for Liquid Penetrant Examination
1.1 This specification establishes the basic quality, physical/
2.3 ANSI Standard:
mechanical property and test requirements for silicon nitride
ANSI/ASQC Z1.4 Sampling Procedures and Tables for
balls Classes I, II, and III to be used for ball bearings and
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Inspection by Attributes
specialty ball applications.
2.4 ABMA Standards:
1.2 The values stated in either SI units or inch-pound units
STD 1 Terminology for Anti-Friction Ball and Roller Bear-
are to be regarded separately as standard. The values stated in
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ings and Parts
each system are not exact equivalents; therefore, each system
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STD 10 Metal Balls
must be used independently of the other. Combining values
2.5 ASME Standard:
from the two systems may result in nonconformance with the
B 46.1 Surface Texture (Surface Roughness, Waviness, and
specification.
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Lay)
2. Referenced Documents 2.6 DIN Standards:
5401 Rolling bearings; Balls of through-hardening rolling
2.1 Order of Precedence:
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bearing steel, Part 1
2.1.1 In the event of a conflict between the test of this
5401 Rolling bearings; Balls of through-hardening rolling
document and the references herein, the text of this document
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bearing steel, Part 2
takes precedence. Nothing in this document, however, super-
2.7 ISO Standards:
sedes applicable laws and regulations unless a specific exemp-
3290 Rolling bearings, bearing parts, Balls for rolling bear-
tion has been obtained.
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ings
2.2 ASTM Standards:
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4505 Hardmetals—Metallographic Determination of Poros-
C 373 Test for Water Absorption, Bulk Density
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ity and Uncombined Carbon
C 1161 Test method for Flexural Strength of Advanced
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2.8 JIS Standards:
Ceramics at Ambient Temperature
R 1601 Testing Method for Flexural Strength (Modulus of
C 1198 Test method for Dynamic Young’s Modulus, Shear
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Rupture) of High Performance Ceramics
Modulus, and Poisson’s Ratio for Advanced Ceramics by
3
R 1602 Testing Method for Elastic Modulus of High Per-
Sonic Resonance
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formance Ceramics
C 1239 Practice for the Reporting Uniaxial Strength Data
R 1603 Methods for Chemical Analysis of Fine Silicon
and Estimating Weibull Distribution Parameters for Ad-
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3
Nitride Powders for Fine Ceramics
vanced Ceramics
R 1607 Testing Method for Fracture Toughness of High
C 1327 Test method for Vickers Indentation Hardness of
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3
Performance Ceramics
Advanced Ceramics
R 1610 Testing Method for Vicker’s Hardness of High
C 1421 Test Methods for the Determination of Fracture
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Performance Ceramics
Toughness of Advanced Ceramic Materials at Ambient
3
Temperatures
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E 165 Test Method for Liquid Penetrant Examination
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Annual Book of ASTM Standards, Vol 14.02.
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E 384 Test Method for Microhardness of Materials 7
Application for copies should be addressed to the American National Standards
E 831 Test Method for Linear Thermal Expansion of Solid
Institute, 11 West 42nd Street, 13th Floor, New York, NY 10036.
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Application for copies should be addressed to the American Bearing Manufac-
turer’s Association, 1200 19th Street NW, Suite 300, Washington, DC 20036-2401.
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This specification is under the jurisdiction of ASTM Committee F34 on Rolling
Application for copies should be addressed to the American Society of
Element Bearings and is the direct responsibility of Subcommittee F34.01 on
Mechanical Engineers, 345 East Street, New York, NY 10017.
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Rolling Elements.
Application for copies should be addressed to the Deutsches Institut Für
Current edition approved April 10, 2001. Published May 2001.
Normung (German Standards Institute), Burggrafenstrasse 6, D 10787 Berlin,
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Annual Book of ASTM Standards, Vol 15.02.
Germany.
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Annual Book of ASTM Standards, Vol 15.01. 11
Application for copies should be addressed to the American National Stan-
4
Annual Book of ASTM Standards, Vol 03.03.
dards Institute, 11 West 42nd Street, New York, NY 10036-8002.
5
Annual Book of ASTM Standards, Vol 03.01. 12
Application for copies should be addressed to the Japanese Standards
Association, 1-24 Akasaka 4 chome, Minato-ku, Tokyo. 107 Japan.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
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F 2094
R 1611 Testing Methods of Thermal Diffusivity, Specific 3.1.7 blank lot, n—single group of same-sized ball
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