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ASTM F2431-04

(Specification)

Standard Specification for Ring Bearing, Inner: For Needle Roller Bearing with Thick Outer Ring

Standard Specification for Ring Bearing, Inner: For Needle Roller Bearing with Thick Outer Ring

ABSTRACT
This specification covers inner rings for needle roller bearings having thick outer rings. The inner rings being specified are intended for use on unhardened shafts. Inner rings designed to this specification are intended for use in applications requiring high radial load with minimal angular shaft misalignment. Heat treatment and protective coating of the material shall meet the specified requirements.
SCOPE
1.1 This specification covers inner rings for needle roller bearings having thick outer rings.
1.2 The inner rings being specified are intended for use on unhardened shafts in conjunction with the MS51961 needle roller bearings specified in Specification F 2246.
1.2.1 For needle roller bearings with thin outer rings (Specification F 2162, MS17131, MS52141) use inner rings specified in Specification F 2163.
1.3 Inner rings designed to this specification are intended for use in applications requiring high radial load with minimal angular shaft misalignment.
1.4 This specification contains many of the requirements of MS51962, which was originally developed by the Department of Defense and maintained by the Defense Supply Center in Richmond. The following government activity codes may be found in the Department of Defense, Standardization Directory SD-1.
Preparing activityCustodiansReview ActivityDLA-GS4Army -ATAir Force-84Navy-OSAir Force--99

General Information

Status
Historical
Publication Date
30-Sep-2004
ICS
21.100.20 - Rolling bearings
Technical Committee
F34 - Rolling Element Bearings
Drafting Committee
F34.04 - Automotive/Industrial Bearing
Current Stage
Ref Project

Relations

Replaced By
ASTM F2431-04(2012) - Standard Specification for Ring Bearing, Inner: For Needle Roller Bearing with Thick Outer Ring
Effective Date
01-Dec-2012
Referred By
ASTM F2246-06(2022) - Standard Specification for Bearing, Roller, Needle: Thick Outer Ring With Rollers and Cage
Effective Date
01-Oct-2004
Referred By
ASTM F2430-04(2018) - Standard Specification for Bearing, Roller, Needle: Assembly (Thick Outer Race)
Effective Date
01-Oct-2004

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ASTM F2431-04 - Standard Specification for Ring Bearing, Inner: For Needle Roller Bearing with Thick Outer RingASTM F2431-04 - Standard Specification for Ring Bearing, Inner: For Needle Roller Bearing with Thick Outer Ring
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ASTM F2431-04 - Standard Specification for Ring Bearing, Inner: For Needle Roller Bearing with Thick Outer Ring
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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:F2431 −04
StandardSpecification for
Ring Bearing, Inner: For Needle Roller Bearing with Thick
1
Outer Ring
This standard is issued under the fixed designation F2431; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope and Closed End, Standard Type
F2163 Specification for Ring, Bearing, Inner: for Needle
1.1 This specification covers inner rings for needle roller
Roller Bearing With Drawn Outer Ring
bearings having thick outer rings.
F2246 Specification for Bearing, Roller, Needle: Thick
1.2 The inner rings being specified are intended for use on
Outer Ring With Rollers and Cage
unhardened shafts in conjunction with the MS51961 needle 4
2.2 ANSI Standard:
roller bearings specified in Specification F2246.
ASME B46.1 Surface Texture (Surface Roughness,
1.2.1 For needle roller bearings with thin outer rings (Speci-
Waviness, and Lay)
fication F2162, MS17131, MS52141) use inner rings specified
5
2.3 SAE Standards:
in Specification F2163.
SAE J404 Chemical Compositions of SAE Alloy Steels
1.3 Inner rings designed to this specification are intended
SAE AMSSTD66 Steel: Chemical Composition and Hard-
for use in applications requiring high radial load with minimal enability
6
angular shaft misalignment.
2.4 Military Standard.
MIL-STD-130 Identification Marking of U.S. Military Prop-
1.4 This specification contains many of the requirements of
erty
MS51962, which was originally developed by the Department
MIL-STD-197 Packaging of Bearings, Associated Parts and
of Defense and maintained by the Defense Supply Center in
Subassemblies
Richmond. The following government activity codes may be
7
2.5 ABMA Standards:
found in the Department of Defense, Standardization Directory
2
ABMA 4 Tolerance Definitions and Gauging Practices for
SD-1.
Ball and Roller Bearings
Preparing activity Custodians Review Activity
ABMA 18.2 Needle Roller Bearings Radial, Inch Design
DLA–GS4 Army –AT Air Force–84
4
Navy–OS
2.6 ISO Standard:
Air Force–-99
ISO 5593 Rolling Bearings—Vocabulary
2. Referenced Documents
3. Terminology
3
2.1 ASTM Standards:
3.1 Definitions—For definitions of terms used in this
E18 Test Methods for Rockwell Hardness of Metallic Ma-
specification, refer to ABMA STD 4 and ISO 5593.
terials
F2162 Specification for Bearing, Roller, Needle: Drawn
4. Ordering Information
Outer Ring, Full Complement, Without Inner Ring, Open
4.1 When ordering parts in accordance with this
specification, specify the following:
4.1.1 ASTM designation number, including year of issue,
1
This specification is under the jurisdiction ofASTM Committee F34 on Rolling
4.1.2 Dash number (see Table 1),
Element Bearings and is the direct responsibility of Subcommittee Automotive/
4.1.3 Dimensions of inner ring, including:
Industrial Bearing.
Current edition approved Oct. 1, 2004. Published October 2004. DOI: 10.1520/
F2431-04.
2 4
The Military codes that are listed in SD-1 give the address and phone numbers Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
of the DoD contacts. These are found in the DoD’s ASSIST website, http:// 4th Floor, New York, NY 10036.
5
assist.daps.dla.mil/online/start/. Available from Society of Automotive Engineers (SAE), 400 Commonwealth
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Dr., Warrendale, PA 15096-0001.
6
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available on the DOD’s ASSIST website, http://assist.daps.dla.mil/online/
Standards volume information, refer to the standard’s Document Summary page on start/.
7
the ASTM website. Available from Techstreet, 1327 Jones Drive, Ann Arbor, MI 48105.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F2431−04
TABLE 1 Inner Ring Dimensions
Dash d F B r Mating
Number Bore Diameter, Outside Diameter, Width, Radius, Bearing
in. in. in. in. MS51961
(see Dash Number
+0.000, 7.3) (see
-0.005 Specification
F2246)
Nom. Min. Max. Nom. Min. Max.
3 5
-1 ⁄8 0.3746 0.3750 ⁄8 0.6241 0.6245 0.760 0.025 -1
1 3
-2 ⁄2 0.4996 0.5000 ⁄4 0.7488 0.7493 0.760 0.040 -2
1 3
-3 ⁄2 0.4996 0.5000 ⁄4 0.7488 0.7493 1.010 0.040 -3
5 7
-4 ⁄8 0.6246 0.6250 ⁄8 0.8738 0.8743 0.760 0.040 -5
3
-5 ⁄4 0.7496 0.7500 1 0.9988 0.9993 0.760 0.040 -8
13
-6 ⁄16 0.8120 0.8125 1 0.9988 0.9993 0.760 0.040 -8
13
-7 ⁄16 0.8120 0.8125 1 0.9988 0.9993 1.010 0.040 -9
7 1
-8 ⁄8 0.8745 0.8750 1 ⁄8 1.1236 1.1241 1.010 0.040 -11
15 1
-9 ⁄16 0.9370
...

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