ASTM F2246-2006e1 Standard Specification for Bearing Roller Needle Thick Outer Ring With Rollers and Cage《滚针轴承的标准规范 厚截面外圈、滚子和保持架组件》.pdf
《ASTM F2246-2006e1 Standard Specification for Bearing Roller Needle Thick Outer Ring With Rollers and Cage《滚针轴承的标准规范 厚截面外圈、滚子和保持架组件》.pdf》由会员分享,可在线阅读,更多相关《ASTM F2246-2006e1 Standard Specification for Bearing Roller Needle Thick Outer Ring With Rollers and Cage《滚针轴承的标准规范 厚截面外圈、滚子和保持架组件》.pdf(4页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: F 2246 06e1Standard Specification forBearing, Roller, Needle: Thick Outer Ring With Rollers andCage1This standard is issued under the fixed designation F 2246; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year o
2、f last revision. A number in parentheses indicates the year of last reapproval. Asuperscript 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.e1NOTENote 1 and footnote 5 were editorially c
3、orrected in September 2007.1. Scope1.1 This specification covers needle roller bearings havingthick outer rings, with rollers and cages.1.2 The bearings being specified are intended to be usedwith hardened shafts (HRC58-65; see Test Methods E18). Foruse with unhardened shafts, bearings should be use
4、d inconjunction with inner bearing ring MS51962 as specified inSpecification F 2431 and shown as MS500072 bearing assem-blies in Specification F 2430.1.3 The use of recycled materials that meet the requirementsof the applicable material specification without jeopardizingthe intended use of the item
5、is encouraged.1.4 Bearings designed to this specification are intended foruse in applications requiring high radial load with minimalangular shaft misalignment.1.5 The values stated in inch-pound units are to be regardedas the standard. The values given in parentheses are providedfor information onl
6、y.NOTE 1This specification contains many of the requirements ofMS51961 which was originally developed by the Department of Defenseand maintained by the Defense Supply Center Richmond.2. Referenced Documents2.1 ASTM Standards:2E18 Test Methods for Rockwell Hardness of MetallicMaterialsF 2430 Specific
7、ation for Bearing, Roller, Needle: Assembly(Thick Outer Race)F 2431 Specification for Ring Bearing, Inner: For NeedleRoller Bearing with Thick Outer Ring2.2 ANSI Standard:3ANSI B46.1 Surface Texture (Surface Roughness, Wavi-ness, and Lay)2.3 SAE Standards:4SAE J-404 Chemical Compositions of SAE Allo
8、y SteelsSAEAMS-STD-66 Steel: Chemical Composition and Hard-enability2.4 Military Standards:5MIL-STD-130 Identification Marking of U.S. MilitaryPropertyMS500072 Bearing, Roller, Needle:Assembly (Thick OuterRace)MS51962 Ring Bearing, Inner: For Needle Roller Bearingwith Thick Outer Ring2.5 American Be
9、aring Manufacturers Association Stan-dard:6ABMA 18.1 Needle Roller Bearings Radial, Inch Design2.6 International Organization for Standardization Stan-dards:7ISO 492 Rolling BearingsRadial BearingsTolerancesISO 3096 Rolling BearingsNeedle RollersDimensionsand TolerancesISO 5593 Rolling BearingsVocab
10、ulary3. Terminology3.1 DefinitionsFor definitions of terms used in this speci-fication, refer to ISO 5593, Rolling BearingsVocabulary.1This specification is under the jurisdiction ofASTM Committee F34 on RollingElement Bearings and is the direct responsibility of Subcommittee F34.04 onAutomotive/Ind
11、ustrial Bearing.Current edition approved Nov. 1, 2006. Published November 2006. Originallyapproved in 2003. Last previous edition approved in 2003 as F 2246 03.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of
12、 ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036.4Available from Society of Automotive Engineers (SAE), 400 CommonwealthDr., Warrendale, PA 150
13、96-0001.5Available on the DoDs ASSIST internet site located at: http:/assist.daps.dla.mil/online/start/.6Available from Techstreet, 1327 Jones Drive, Ann Arbor, MI 48105.7Available from ANSI Washington, D.C. Headquarters, 1819 L Street, NW, 6thFloor, Washington, DC, 200361Copyright ASTM Internationa
14、l, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.2 Definitions of Terms Specific to This Standard:3.2.1 average life (L50)for a radial roller bearing, thenumber of revolutions that 50 % of a group of bearings willcomplete or exceed before the first evidence of
15、 fatigue devel-ops.3.2.1.1 DiscussionThe average life is approximately fivetimes the rating life.3.2.2 basic dynamic load rating (Cr)for a radial rollerbearing, that calculated, constant radial load that a group ofapparently identical bearings with stationary outer rings cantheoretically endure for
16、a rating life of one million revolutionsof the inner ring.3.2.2.1 DiscussionSince applied loading as great as thebasic dynamic load rating tends to cause local plastic defor-mation of the rolling surfaces, it is not anticipated that suchheavy loading would normally be applied.3.2.3 basic static load
17、 rating (Cor)for a radial rollerbearing, that uniformly distributed static radial load whichproduces a maximum contact stress at the center of the mostheavily loaded rolling element contact of 580 000 psi (4000Mpa).3.2.3.1 DiscussionFor this contact stress, a total perma-nent deformation of roller e
18、lement plus raceway occurs, whichis approximately 0.0001 of the roller diameter.3.2.4 rating life (L10)for a radial roller bearing, thenumber of revolutions that 90 % of a group of bearings willcomplete or exceed before the first evidence of fatigue devel-ops.4. Ordering Information4.1 When ordering
19、 parts in accordance with this specifica-tion, specify the following:4.1.1 ASTM designation number, including year of issue,4.1.2 Dash number (see Table 1),4.1.3 Dimensions of roller bearings, including:4.1.3.1 Bore diameter, in. (mm),4.1.3.2 Outside diameter, in. (mm),4.1.3.3 Width, in. (mm), and4.
20、1.3.4 Radius, in. (mm),4.1.4 Load rating, including basic static load rating, lb (N)and basic dynamic load rating, lb (N), and4.1.5 Approximate limiting speed, rpm.5. Materials and Manufacture5.1 RollersRollers shall be manufactured of steel, alloy,grade E50100, E51100 or E52100 in accordance with S
21、AEAMS-STD-66 or SAE J-404.5.2 RingsRings shall be manufactured of steel, alloy orcarbon, carburizing grade 4620, 4720, 8620, 8720, or 1010-1020 in accordance with SAE AMS-STD-66 or SAE 51100 orSAE 52100 in accordance with SAE J-404.5.3 CagesCages shall be manufactured of steel, brass, orbronze, or o
22、ther material in accordance with manufacturersstandards.6. Other Requirements6.1 Heat Treatment:6.1.1 RollersRollers shall be through hardened to Rock-well HRC58-66 in accordance with Test Methods E18.6.1.2 Rings:6.1.2.1 Steel 4620, 4720, 8620, 8720, and 1010-1020 shallbe case hardened to Rockwell H
23、RC58-65, in accordance withTest Methods E18. Case depth shall be 0.025 in. (0.64 mm)minimum.6.1.2.2 Steel SAE 51100 and SAE 52100 shall be throughhardened to Rockwell HRC58-65, in accordance with TestMethods E18.6.2 Protective Coating:6.2.1 Bearings shall be furnished without plating.6.2.2 Manufactu
24、rer shall coat bearings with rust preventivefilm.6.3 LubricationBearings shall be furnished without lubri-cation.7. Dimensions, Mass, and Permissible Variations7.1 Products manufactured in accordance with this specifi-cation shall meet the requirements shown in Table 1.7.2 Bearings are intended to b
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