ASTM F2094-03a

Standard Specification for Silicon Nitride Bearing Balls

SCOPE
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 are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.

General Information

• Status: Historical
• Publication Date: 30-Nov-2003
• ICS: 21.100.01 - Bearings in general
• Technical Committee: F34 - Rolling Element Bearings
• Drafting Committee: F34.01 - Rolling Element

Relations

• Replaces: ASTM F2094-03 - Standard Specification for Silicon Nitride Bearing Balls
• Effective Date: 01-Dec-2003
• Replaced By: ASTM F2094-06 - Standard Specification for Silicon Nitride Bearing Balls
• Effective Date: 01-Nov-2006

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F 2094 – 03a
Standard Specification for
1
Silicon Nitride Bearing Balls
This standard is issued under the fixed designation F2094; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope E165 Test Method for Liquid Penetrant Examination
E384 Test Method for Microindentation Hardness of Ma-
1.1 This specification covers the establishment of the basic
terials
quality, physical/mechanical property, and test requirements
E831 Test Method for Linear Thermal Expansion of Solid
for silicon nitride balls Classes I, II, and III to be used for ball
Materials by Thermomechanical Analysis
bearings and specialty ball applications.
E1417 Practice for Liquid Penetrant Examination
1.2 The values stated in either SI units or inch-pound units
2.3 ANSI Standard:
are to be regarded separately as standard. The values stated in
ANSI/ASQC Z1.4 Sampling Procedures and Tables for
each system are not exact equivalents; therefore, each system
3
Inspection by Attributes
must be used independently of the other. Combining values
2.4 ABMA Standards:
from the two systems may result in nonconformance with the
STD 1 Terminology forAnti-Friction Ball and Roller Bear-
specification.
4
ings and Parts
4
2. Referenced Documents
STD 10 Metal Balls
2.5 ASME Standard:
2.1 Order of Precedence:
B 46.1 Surface Texture (Surface Roughness, Waviness, and
2.1.1 In the event of a conflict between the test of this
5
Lay)
document and the references herein, the text of this document
6
2.6 DIN Standards:
takes precedence. Nothing in this document, however, super-
5401 Rolling Bearings; Balls of Through-Hardening Roll-
sedes applicable laws and regulations unless a specific exemp-
ing Bearing Steel, Part 1
tion has been obtained.
2
5401 Rolling Bearings; Balls of Through-Hardening Roll-
2.2 ASTM Standards:
ing Bearing Steel, Part 2
C373 Test for Water Absorption, Bulk Density, Apparent
2.7 ISO Standards:
Porosity, andApparent Specific Gravity of Fired Whitew-
3290 Rolling Bearings, Bearing Parts, Balls for Rolling
are Products
3
Bearings
C1161 Test Method for Flexural Strength of Advanced
4505 Hardmetals—Metallographic Determination of Poros-
Ceramics at Ambient Temperature
3
ity and Uncombined Carbon
C1198 Test Method for Dynamic Young’s Modulus, Shear
2.8 JIS Standards:
Modulus, and Poisson’s Ratio for Advanced Ceramics by
R 1601 Testing Method for Flexural Strength (Modulus of
Sonic Resonance
7
Rupture) of High Performance Ceramics
C1239 Practice for Reporting Uniaxial Strength Data and
R 1602 Testing Method for Elastic Modulus of High Per-
Estimating Weibull Distribution Parameters for Advanced
7
formance Ceramics
Ceramics
R 1603 Methods for Chemical Analysis of Fine Silicon
C1327 Test Method for Vickers Indentation Hardness of
7
Nitride Powders for Fine Ceramics
Advanced Ceramics
R 1607 Testing Method for Fracture Toughness of High
C1421 Test Methods for Determination of FractureTough-
ness of Advanced Ceramics at Ambient Temperatures
3
ApplicationforcopiesshouldbeaddressedtotheAmericanNationalStandards
Institute, 25 West 43rd Street, 4th Floor, New York, NY 10036.
1 4
ThisspecificationisunderthejurisdictionofASTMCommitteeF34onRolling Application for copies should be addressed to theAmerican Bearing Manufac-
Element Bearings and is the direct responsibility of Subcommittee F34.01 on turer’sAssociation, 1200 19th Street NW, Suite 300, Washington, DC 20036-2401.
5
Rolling Element. Application for copies should be addressed to the American Society of
Current edition approved Dec. 1, 2003. Published December 2003. Originally Mechanical Engineers, 345 East Street, New York, NY 10017.
6
approved in 2001. Last previous edition approved in 2003 as F2094–03. Application for copies should be addressed to the Deutsches Institut Für
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Normung (German Standards Institute), Burggrafenstrasse 6, D 10787 Berlin,
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Germany.
7
Standards volume information, refer to the standard’s Document Summary page on Application for copies should be addressed to the Japanese StandardsAssocia-
the ASTM website. tion, 1-24 Akasaka 4 chome, Minato-ku, Tokyo. 107 Japan.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
F 2094 – 03a
7
Performance Ceramics 3.1.6 deviation from spherical form (DRw)—greatest radial
R 1610 Testing Method for Vicker’s Hardness of High distance in any radial plane between a sphere ci
...