Standard Specification for Bearing, Roller, Needle: Thick Outer Ring With Rollers and Cage

SCOPE
1.1 This specification covers needle roller bearings having thick outer rings, with rollers and cages.
1.2 The bearings being specified are intended to be used with hardened shafts (HRC58-65; see Test Methods E 18). For use with unhardened shafts, bearings should be used in conjunction with inner bearing ring MS51962 as specified in Specification F 2431 and shown as MS500072 bearing assemblies in Specification F 2430.
1.3 The use of recycled materials that meet the requirements of the applicable material specification without jeopardizing the intended use of the item is encouraged.
1.4 Bearings designed to this specification are intended for use in applications requiring high radial load with minimal angular shaft misalignment.
1.5 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information only.Note 1
This specification contains many of the requirements of MS51961 which was originally developed by the Department of Defense and maintained by the Defense Supply Center Richmond.

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Publication Date
31-Oct-2006
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ASTM F2246-06e1 - Standard Specification for Bearing, Roller, Needle: Thick Outer Ring With Rollers and Cage
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
´1
Designation:F2246 −06
StandardSpecification for
Bearing, Roller, Needle: Thick Outer Ring With Rollers and
1
Cage
This standard is issued under the fixed designation F2246; 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
´ NOTE—Note 1 and footnote 5 were editorially corrected in September 2007.
1. Scope F2431 Specification for Ring Bearing, Inner: For Needle
Roller Bearing with Thick Outer Ring
1.1 This specification covers needle roller bearings having
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2.2 ANSI Standard:
thick outer rings, with rollers and cages.
ANSIB46.1 SurfaceTexture(SurfaceRoughness,Waviness,
1.2 The bearings being specified are intended to be used
and Lay)
with hardened shafts (HRC58-65; see Test Methods E18). For
4
2.3 SAE Standards:
use with unhardened shafts, bearings should be used in
SAE J-404 Chemical Compositions of SAE Alloy Steels
conjunction with inner bearing ring MS51962 as specified in
SAEAMS-STD-66 Steel: Chemical Composition and Hard-
Specification F2431 and shown as MS500072 bearing assem-
enability
blies in Specification F2430.
5
2.4 Military Standards:
1.3 Theuseofrecycledmaterialsthatmeettherequirements
MIL-STD-130 Identification Marking of U.S. Military Prop-
of the applicable material specification without jeopardizing
erty
the intended use of the item is encouraged.
MS500072 Bearing, Roller, Needle:Assembly (Thick Outer
1.4 Bearings designed to this specification are intended for Race)
use in applications requiring high radial load with minimal MS51962 Ring Bearing, Inner: For Needle Roller Bearing
angular shaft misalignment. with Thick Outer Ring
2.5 American Bearing Manufacturers Association Stan-
1.5 The values stated in inch-pound units are to be regarded
6
dard:
as the standard. The values given in parentheses are provided
ABMA 18.1 Needle Roller Bearings Radial, Inch Design
for information only.
NOTE 1—This specification contains many of the requirements of
2.6 International Organization for Standardization Stan-
7
MS51961 which was originally developed by the Department of Defense
dards:
and maintained by the Defense Supply Center Richmond.
ISO 492 Rolling Bearings—Radial Bearings—Tolerances
ISO 3096 Rolling Bearings—Needle Rollers—Dimensions
2. Referenced Documents
and Tolerances
2
2.1 ASTM Standards:
ISO 5593 Rolling Bearings—Vocabulary
E18 Test Methods for Rockwell Hardness of Metallic Ma-
3. Terminology
terials
F2430 Specification for Bearing, Roller, Needle: Assembly
3.1 Definitions—For definitions of terms used in this
(Thick Outer Race)
specification, refer to ISO 5593, Rolling Bearings—
Vocabulary.
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This specification is under the jurisdiction ofASTM Committee F34 on Rolling
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Element Bearings and is the direct responsibility of Subcommittee F34.04 on Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
Automotive/Industrial Bearing. 4th Floor, New York, NY 10036.
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Current edition approved Nov. 1, 2006. Published November 2006. Originally Available from Society of Automotive Engineers (SAE), 400 Commonwealth
approved in 2003. Last previous edition approved in 2003 as F2246 – 03. DOI: Dr., Warrendale, PA 15096-0001.
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10.1520/F2246-06E01. Available on the DoD’s ASSIST internet site located at: http://
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or assist.daps.dla.mil/online/start/.
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contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from Techstreet, 1327 Jones Drive, Ann Arbor, MI 48105.
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Standards volume information, refer to the standard’s Document Summary page on Available from ANSI Washington, D.C. Headquarters, 1819 L Street, NW, 6th
the ASTM website. Floor, Washington, DC, 20036
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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F2246−06
3.2 Definitions of Terms Specific to This Standard:
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F2246−06
3.2.1 average life (L )—for a radial roller bearing, the 4.1.3.4 Radius, in. (mm),
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number of revolutions that 50 % of a group of bearings will
4.1.4 Load rating, including basic static load rating, lb (N)
complete or exceed before the first evidence of fatigue devel-
and basic dynamic load rating, lb (N), and
ops.
4.1.5 Approximate limiting speed, rpm.
3.2.1.1 Discussion—The average life is approximately five
times the rating life.
5. Materials and Manufacture
3.2.2 basic dynamic load rating (C ) —for a radial roller
r
5.1 Rollers—Rollers shall
...

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