ASTM F2431-04(2012)

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 F2246.  
1.2.1 For needle roller bearings with thin outer rings (Specification F2162, MS17131, MS52141) use inner rings specified in Specification F2163.  
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 The values stated in inch-pound units are to be regarded as 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 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-1.2
Preparing activity  
Custodians  
Review Activity  
DLA–GS4  
Army –AT  
Air Force–84  
Navy–OS  
Air Force–-99

General Information

• Status: Historical
• Publication Date: 30-Nov-2012
• ICS: 21.100.20 - Rolling bearings
• Technical Committee: F34 - Rolling Element Bearings
• Drafting Committee: F34.04 - Automotive/Industrial Bearing

Relations

• Replaces: ASTM F2431-04 - Standard Specification for Ring Bearing, Inner: For Needle Roller Bearing with Thick Outer Ring
• Effective Date: 01-Dec-2012
• Replaced By: ASTM F2431-04(2018) - Standard Specification for Ring Bearing, Inner: For Needle Roller Bearing with Thick Outer Ring
• Effective Date: 15-Aug-2018
• Referred By: ASTM F2246-06(2022) - Standard Specification for Bearing, Roller, Needle: Thick Outer Ring With Rollers and Cage
• Effective Date: 01-Dec-2012
• Referred By: ASTM F2430-04(2018) - Standard Specification for Bearing, Roller, Needle: Assembly (Thick Outer Race)
• Effective Date: 01-Dec-2012

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 (Reapproved 2012)
Standard Specification for
Ring Bearing, Inner: For Needle Roller Bearing with Thick
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 U.S. Department of Defense.
1. Scope 2. Referenced Documents
2.1 ASTM Standards:
1.1 This specification covers inner rings for needle roller
E18 Test Methods for Rockwell Hardness of Metallic Ma-
bearings having thick outer rings.
terials
1.2 The inner rings being specified are intended for use on
F2162 Specification for Bearing, Roller, Needle: Drawn
unhardened shafts in conjunction with the MS51961 needle
Outer Ring, Full Complement, Without Inner Ring, Open
roller bearings specified in Specification F2246.
and Closed End, Standard Type
1.2.1 For needle roller bearings with thin outer rings (Speci- F2163 Specification for Ring, Bearing, Inner: for Needle
fication F2162, MS17131, MS52141) use inner rings specified Roller Bearing With Drawn Outer Ring
F2246 Specification for Bearing, Roller, Needle: Thick
in Specification F2163.
Outer Ring With Rollers and Cage
1.3 Inner rings designed to this specification are intended
2.2 ANSI Standard:
for use in applications requiring high radial load with minimal
ASME B46.1 Surface Texture (Surface Roughness,
angular shaft misalignment.
Waviness, and Lay)
1.4 The values stated in inch-pound units are to be regarded
2.3 SAE Standards:
as standard. The values given in parentheses are mathematical
SAE J404 Chemical Compositions of SAE Alloy Steels
conversions to SI units that are provided for information only
SAE AMSSTD66 Steel: Chemical Composition and Hard-
and are not considered standard.
enability
2.4 Military Standard.
1.5 This specification contains many of the requirements of
MIL-STD-130 Identification Marking of U.S. Military Prop-
MS51962, which was originally developed by the Department
erty
of Defense and maintained by the Defense Supply Center in
MIL-STD-197 Packaging of Bearings, Associated Parts and
Richmond. The following government activity codes may be
Subassemblies
found in the Department of Defense, Standardization Directory
2.5 ABMA Standards:
SD-1.
ABMA 4 Tolerance Definitions and Gauging Practices for
Preparing activity Custodians Review Activity
Ball and Roller Bearings
DLA–GS4 Army –AT Air Force–84
Navy–OS
ABMA 18.2 Needle Roller Bearings Radial, Inch Design
Air Force–-99
2.6 ISO Standard:
ISO 5593 Rolling Bearings—Vocabulary
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
This specification is under the jurisdiction ofASTM Committee F34 on Rolling the ASTM website.
Element Bearings and is the direct responsibility of Subcommittee Automotive/ Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
Industrial Bearing. 4th Floor, New York, NY 10036, http://www.ansi.org.
Current edition approved Dec. 1, 2012. Published January 2013. Originally Available from SAE International (SAE), 400 Commonwealth Dr.,Warrendale,
approved in 2004. Last previous edition approved in 2004 as F2431–04. DOI: PA 15096-0001, http://www.sae.org.
10.1520/F2431-04R12. Available on the DOD’s ASSIST website, http://assist.daps.dla.mil/online/
The Military codes that are listed in SD-1 give the address and phone numbers start/.
of the DoD contacts. These are found in the DoD’s ASSIST website, http:// Available from Techstreet, 3916 Ranchero Drive, Ann Arbor, MI, 48108,
assist.daps.dla.mil/online/start/. http://www.techstreet.com.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F2431−04 (2012)
3. Terminology 4. Ordering Information
3.1 Definitions—For definitions of terms used in this 4.1 When ordering parts in accordance with this
specification, refer to ABMA STD 4 and ISO 5593. specification, specify the following:
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
-5 ⁄4 0.7496 0.7500 1 0.9988 0.9993 0.760 0.040 -8
-6 ⁄16 0.8120 0.8125 1 0.9988 0.9993 0.760 0.040 -8
-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 0.9375 1 ⁄8 1.1236 1.1241 1.010 0.040 -11
-10 1 0.9995 1.0000 1 ⁄4 1.2485 1.2491 1.010 0.040 -14
-11 1 0.9995 1.0000 1 ⁄4 1.2485 1.2491 1.260 0.040 -15
1 3
-12 1 ⁄8 1.1245 1.1250 1 ⁄8 1.3735 1.3741 1.010 0.040 -18
1 3
-13 1 ⁄8 1.1245 1.1250 1 ⁄8 1.3735 1.3741 1.260 0.040 -19
3 1
-14 1 ⁄16 1.1870 1.1875 1 ⁄2 1.4984 1.4990 1.260 0.060 -22
1 1
-15 1 ⁄4 1.2495 1.2500 1 ⁄2 1.4984 1.4990 1.010 0.060 -21
1 1
-16 1 ⁄4 1.2495 1.2500 1 ⁄2 1.4984 1.4990 1.260 0.060 -22
5 5
-17 1 ⁄16 1.3210 1.3125 1 ⁄8 1.6234 1.6240 1.010 0.060 -24
3 5
-18 1 ⁄8 1.3745 1.3750 1 ⁄8 1.6234 1.6240 1.260 0.060 -25
3 3
-19 1 ⁄8 1.3745 1.3750 1 ⁄4 1.7484 1.7490 1.260 0.060 -28
7 3
-20 1 ⁄16 1.4370 1.4375 1 ⁄4 1.7484 1.7490 1.260 0.060 -28
1 3
-21 1 ⁄2 1.4995 1.5000 1 ⁄4 1.7484 1.7490 1.010 0.060 -27
1 3
-22 1 ⁄2 1.4995 1.5000 1 ⁄4 1.7484 1.7490 1.260 0.060 -28
-23 1 ⁄8 1.6245 1.6250 2 1.9982 1.9989 1.260 0.060 -30
3 1
-24 1 ⁄4 1.7495 1.7500 2 ⁄4 2.2482 2.2489 1.510 0.060 -31
3 1
-25 1 ⁄4 1.7495 1.7500 2 ⁄4 2.2482 2.2489 1.510 0.060 -32
15 1
-26 1 ⁄16 1.9370 1.9375 2 ⁄2 2.4982 2.4989 1.760 0.080 -34
-27 2 1.9995 2.0000 2 ⁄2 2.4982 2.4989 1.510 0.080 -33
3 3
-28 2 ⁄16 2.1869 2.1875 2 ⁄4 2.7482 2.7489 1.760 0.080 -36
1 3
-29 2 ⁄4 2.2494 2.2500 2 ⁄4 2.7482 2.7489 1.510 0.080 -35
-30 2 ⁄8 2.3744 2.3750 3 2.9982 2.9989 1.760 0.080 -38
-31 2 ⁄2 2.4994 2.5000 3 2.9982 2.9989 1.510 0.080 -37
3 1
-32 2 ⁄4 2.7494 2.7500 3 ⁄4 3.2478 3.2487 1.760 0.080 -39
3 1
-33 2 ⁄4 2.7494 2.7500 3 ⁄4 3.2478 3.2487 2.010 0.080 -40
15 1
-34 2 ⁄16 2.9369 2.9375 3 ⁄2 3.4978 3.4987 2.010 0.080 -42
1 3
-35 3 ⁄8 3.1244
...