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 MS 51961, which was originally developed and maintained by the Defense Supply Center Richmond.

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Publication Date
31-Oct-2006
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ASTM F2246-06 - 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
Designation: F 2246 – 06
Standard Specification for
Bearing, Roller, Needle: Thick Outer Ring With Rollers and
1
Cage
This standard is issued under the fixed designation F 2246; 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 (e) 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 ANSI B46.1 Surface Texture (Surface Roughness, Wavi-
ness, and Lay)
1.1 This specification covers needle roller bearings having
4
2.3 SAE Standards:
thick outer rings, with rollers and cages.
SAE J-404 Chemical Compositions of SAE Alloy Steels
1.2 The bearings being specified are intended to be used
SAEAMS-STD-66 Steel:ChemicalCompositionandHard-
with hardened shafts (HRC58-65; see Test MethodsE18). For
enability
use with unhardened shafts, bearings should be used in
5
2.4 Military Standards:
conjunction with inner bearing ring MS51962 as specified in
MIL-STD-130 Identification Marking of U.S. Military
Specification F 2431 and shown as MS500072 bearing assem-
Property
blies in Specification F 2430.
MS500072 Bearing, Roller, Needle:Assembly (Thick Outer
1.3 Theuseofrecycledmaterialsthatmeettherequirements
Race)
of the applicable material specification without jeopardizing
MS51962 Ring Bearing, Inner: For Needle Roller Bearing
the intended use of the item is encouraged.
with Thick Outer Ring
1.4 Bearings designed to this specification are intended for
2.5 American Bearing Manufacturers Association Stan-
use in applications requiring high radial load with minimal
6
dard:
angular shaft misalignment.
ABMA 18.1 Needle Roller Bearings Radial, Inch Design
1.5 The values stated in inch-pound units are to be regarded
2.6 International Organization for Standardization Stan-
as the standard. The values given in parentheses are provided
7
dards:
for information only.
ISO 492 Rolling Bearings—Radial Bearings—Tolerances
NOTE 1—This specification contains many of the requirements of MS
ISO 3096 Rolling Bearings—Needle Rollers—Dimensions
51961, which was originally developed and maintained by the Defense
and Tolerances
Supply Center Richmond.
ISO 5593 Rolling Bearings—Vocabulary
2. Referenced Documents
3. Terminology
2
2.1 ASTM Standards:
3.1 Definitions—For definitions of terms used in this speci-
E18 Test Methods for Rockwell Hardness of Metallic
fication, refer to ISO 5593, Rolling Bearings—Vocabulary.
Materials
3.2 Definitions of Terms Specific to This Standard:
F 2430 Specification for Bearing, Roller, Needle:Assembly
3.2.1 average life (L )—for a radial roller bearing, the
50
(Thick Outer Race)
number of revolutions that 50 % of a group of bearings will
F 2431 Specification for Ring Bearing, Inner: For Needle
complete or exceed before the first evidence of fatigue devel-
Roller Bearing with Thick Outer Ring
ops.
3
2.2 ANSI Standard:
3.2.1.1 Discussion—The average life is approximately five
times the rating life.
3.2.2 basic dynamic load rating (C )—for a radial roller
r
1
This specification is under the jurisdiction ofASTM Committee F34 on Rolling
bearing, that calculated, constant radial load that a group of
Element Bearings and is the direct responsibility of Subcommittee F34.04 on
Automotive/Industrial Bearing.
Current edition approved Nov. 1, 2006. Published November 2006. Originally
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approved in 2003. Last previous edition approved in 2003 as F 2246 – 03. Available from Society of Automotive Engineers (SAE), 400 Commonwealth
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Dr., Warrendale, PA 15096-0001.
5
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from USA Information Systems, 1092 Laskin Rd. Ste. 208, Virginia
Standards volume information, refer to the standard’s Document Summary page on Beach, VA 23451.
6
the ASTM website. Available from Techstreet, 1327 Jones Drive, Ann Arbor, MI 48105.
3 7
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St., Available from ANSI Washington, D.C. Headquarters, 1819 L Street, NW, 6th
4th Floor, New York, NY 10036. 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
apparently identical bearings with stationary outer rings can 5.2 Rings—Rings shall be manufactured of steel, alloy or
theoretically endure for a rating life of one million revolutions carbon, carburizing grade 4620, 4720, 8620, 8720, or 1010-
of the inner ring. 1020 in accordance with SAEAMS-STD-66 or SAE 51100 or
3.2.2.1 Discussion—Since applied loading as great as
...

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