ASTM F3131-14

Standard Specification for Epoxy / Cotton Raw Materials for the Use in Bearing Cages

ABSTRACT
This specification covers basic characteristics required for porous laminated epoxy materials intended for use as instrument and thin-section ball-bearing retainers (cages), as well as the methods of determining these characteristics. It provides guidance with respect to material and test conditioning, performance, verification, and packaging and package marking.
SCOPE
1.1 This specification covers basic characteristics required for porous laminated Epoxy materials intended for use as instrument and thin-section ball-bearing retainers (cages) and the methods of determining these characteristics.  
1.2 Forms—Sheets and Rolled Tubes are recommended forms of laminated material covered by this specification.  
1.3 Intended Use—Materials produced to this specification are intended for use as ball bearing retainers (cages). Temperature range is limited to 284°F (140°C) and below  
1.4 Units—The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.5 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.

General Information

• Status: Historical
• Publication Date: 30-Nov-2014
• ICS: 21.100.20 - Rolling bearings
• Technical Committee: F34 - Rolling Element Bearings
• Drafting Committee: F34.06 - Aerospace

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:F3131 −14
Standard Specification for
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Epoxy / Cotton Raw Materials for the Use in Bearing Cages
This standard is issued under the fixed designation F3131; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope D2257 Test Method for Extractable Matter in Textiles
E1640 Test Method for Assignment of the Glass Transition
1.1 This specification covers basic characteristics required
Temperature By Dynamic Mechanical Analysis
for porous laminated Epoxy materials intended for use as
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2.2 ANSI/ASQC Standards:
instrument and thin-section ball-bearing retainers (cages) and
ANSI/ASQC Z1.4 Sampling Procedures and Tables for In-
the methods of determining these characteristics.
spection by Attributes
1.2 Forms—Sheets and Rolled Tubes are recommended
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2.3 Federal Standard:
forms of laminated material covered by this specification.
MIL-STD-129 Military Making for Shipment and Storage
1.3 Intended Use—Materials produced to this specification
are intended for use as ball bearing retainers (cages). Tempera-
3. Material and Test Conditioning
ture range is limited to 284°F (140°C) and below
3.1 Material Conditioning Prior to Tests: (designation as
1.4 Units—The values stated in inch-pound units are to be
follows)
regarded as the standard. The values given in parentheses are
3.1.1 Anumber indicating in degrees Celsius the condition-
mathematical conversions to SI units that are provided for
ing temperature, or
information only and are not considered standard.
3.1.2 A number indicating relative humidity, whenever hu-
midity is controlled, or a word to indicate immersion in liquid.
1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3.2 The numbers shall be separated from each other by a
responsibility of the user of this standard to establish appro-
slant marks. A sequence of conditions shall be denoted by use
priate safety and health practices and determine the applica-
of a plus (+) sign between successive conditions. “Des” shall
bility of regulatory limitations prior to use.
be used to indicate desiccation over anhydrous calcium chlo-
ride. A capital letter “T” (test condition) following the prior
2. Referenced Documents
material conditioning designation shall be separated by a
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colon, with the testing condition noted in the same format as
2.1 ASTM Standards:
the material conditioning. Temperature and relative humidity
D618 Practice for Conditioning Plastics for Testing
tolerancesshallbeinaccordancewithPracticeD618Section7,
D229 Test Methods for Rigid Sheet and Plate Materials
unless otherwise specified.
Used for Electrical Insulation
3.2.1 EXAMPLES:
D570 Test Method for Water Absorption of Plastics
3.2.1.1 C-96/35/90—– Humidity conditioning – 96 h at
D695 Test Method for Compressive Properties of Rigid
95°F, (35°C) and 90% relative humidity.
Plastics
3.2.1.2 E-48/50—Temperature conditioning - 48 h at 122°F,
D790 Test Methods for Flexural Properties of Unreinforced
(50°C).
and Reinforced Plastics and Electrical Insulating Materi-
3.2.1.3 D1-24/23—Immersion conditioning - 24 h in dis-
als
tilled water at 73.4°F, (23°C), followed by E-1/105 - tempera-
D792 Test Methods for Density and Specific Gravity (Rela-
ture conditioning-1hat 221°F, (105°C).
tive Density) of Plastics by Displacement
3.3 Standard Procedures:
3.3.1 Procedure A:
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This specification is under the jurisdiction ofASTM Committee F34 on Rolling
3.3.1.1 Condition A—40/23/50 for thickness equal or less
Element Bearings and is the direct responsibility of Subcommittee F34.06 on
than 0.250 in., (7mm) or Condition A-88/23/50 for thickness
Aerospace.
Current edition approved Dec. 1, 2014. Published January 2015. DOI: 10.1520/
F3131–14
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from American Society for Quality (ASQ), 600 N. Plankinton Ave.,
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Milwaukee, WI 53203, http://www.asq.org.
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F3131−14
greater than 0.250 in., (7mm) Standard Laboratory atmosphere however, supersedes applicable laws and regulations unless a
for a minimum of either 40 h or 88 h, dependent on thickness, specific exemption has b
...