ASTM_F_2162_-_01_2008.pdf

Designation:F216201(Reapproved 2008)Standard Specification forBearing,Roller,Needle:Drawn Outer Ring,FullComplement,Without Inner Ring,Open and Closed End,Standard Type1This standard is issued under the fixed designation F2162;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript 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.Scope1.1 This specification covers standard-type needle rollerbearings having drawn outer rings,full complement,withoutinner rings,with either open or closed ends.1.2 The use of recycled materials that meet the requirementsof the applicable material specification without jeopardizingthe intended use of the item is encouraged.1.3 The inner rings specified in this specification are notintended for use in flight critical systems of aircraft.1.4 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.NOTE1This specification contains many of the requirements ofMS17131,which was originally developed by the Department of Defenseand is currently maintained by the Defense Supply Center Richmond.2.Referenced Documents2.1 ASTM Standards:2E18 Test Methods for Rockwell Hardness of Metallic Ma-terialsE140 Hardness Conversion Tables for Metals RelationshipAmong Brinell Hardness,Vickers Hardness,RockwellHardness,Superficial Hardness,Knoop Hardness,Sclero-scope Hardness,and Leeb HardnessE384 Test Method for Knoop and Vickers Hardness ofMaterialsF2163 Specification for Ring,Bearing,Inner:for NeedleRoller Bearing With Drawn Outer Ring2.2 ASME Standard:ASME B 46.1 Surface Texture Surface Roughness,Waviness,and Lay32.3 SAE Standard:SAE J-404 Chemical Composition of SAE Alloy Steels42.4 Military Standard:MIL-STD-130 Identification Marking of US Military Prop-erty52.5 American Bearing Manufacturers Association(ABMA)Standard:STD 4 Tolerance Definitions and Gauging Practices For Balland Roller Bearings62.6 ISO Standards:ISO 5593 Rolling BearingsVocabulary7ISO 1132 Rolling BearingsTolerancesDefinitions73.Terminology3.1 DefinitionsFor definitions of terms used in thisspecification,refer to ABMA STD 4 Tolerance Definitions andGauging Practices for Ball and Roller Bearings,ISO 1132Roller BearingsTolerancesDefinitions,and to ISO 5593Rolling BearingsVocabulary3.2 Definitions of Terms Specific to This Standard:3.2.1 average life(L50),nfor a radial roller bearing,thenumber of revolutions that 50%of a group of bearings willcomplete or exceed before the first evidence of fatigue devel-ops.3.2.1.1 DiscussionThe average life maybe as much as fivetimes the rating life.1This specification is under the jurisdiction ofASTM Committee F34 on RollingElement Bearings and is the direct responsibility of Subcommittee F34.04 onAutomotive/Industrial Bearing.Current edition approved May 1,2008.Published October 2008.Originallyapproved in 2001.Last previous edition approved in 2001 as F2162012.DOI:10.1520/F2162-01R08.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from Global Engineering Documents,15 Inverness Way,EastEnglewood,CO 80112-5704,http:/.4Available from Society of Automotive Engineers(SAE),400 CommonwealthDr.,Warrendale,PA 15096-0001,http:/www.sae.org.5Available from USA Information Systems,1092 Laskin Rd.,Ste.208,VirginiaBeach,VA 23451.6Available from the American Bearing Manufacturers Association,1200 19thSt.NW,Ste.300,Washington,DC 200362401.7Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.2.2 basic dynamic load rating(Cr),nfor a radial rollerbearing,that calculated,constant radial load that a group ofapparently identical bearings with stationary outer rings cantheoretically endure for 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 rating(Cor),nfor a radial rollerbearing,that uniformly distributed static radial load whichproduces a maximum contact stress of 580 000 psi(4000 Mpa)at the center of the contact of the most heavily loaded rollingelement.3.2.3.1 DiscussionFor this contact stress,total permanentdeformation of rolling element and raceway occurs which isapproximately 0