1、Designation:F243004(Reapproved 2012)Standard Specification forBearing,Roller,Needle:Assembly(Thick Outer Race)1This standard is issued under the fixed designation F2430;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last
2、 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 needle roller be
3、aring assem-blies.These assemblies have thick outer rings,cages,rollers,and inner rings.The assemblies consist of a MS51961 thickouter race needle roller bearing as specified in SpecificationF2246 and a corresponding MS51962 inner ring as specified inSpecification F24311.2 The bearings being specifi
4、ed are intended to be used onunhardened shafts.MS51961 bearings without inner rings,asspecified in Specification F2246,may be used for used directlyon hardened shafts(HRC5865;see Test Methods E18).1.3 Bearings designed to this specification are intended foruse in applications requiring high radial l
5、oad with minimalangular shaft misalignment.1.4 This specification contains many of the requirements ofMS500072,which was originally developed by the Departmentof Defense and maintained by the Defense Supply Center inRichmond.The following government activity codes may befound in the Department of De
6、fense,Standardization DirectorySD-1.2Preparing activityCustodiansReview ActivityDLA-GS4Army ATAir Force-11,84Navy-OSAir Force-991.5 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 inform
7、ation onlyand are not considered standard.2.Referenced Documents2.1 ASTM Standards:3E18 Test Methods for Rockwell Hardness of Metallic Ma-terialsF2246 Specification for Bearing,Roller,Needle:ThickOuter Ring With Rollers and CageF2431 Specification for Ring Bearing,Inner:For NeedleRoller Bearing with
8、 Thick Outer Ring2.2 Military Standards:4MIL-STD-130 Identification Marking of U.S.Military Prop-ertyMIL-DTL-197 Packaging of Bearings,Associated Parts andSubassemblies2.3 ABMA Standards:5ABMA 4 Tolerance Definitions and Gauging Practices forBall and Roller BearingsABMA 18.2 Needle Roller Bearings R
9、adial,Inch Design2.4 ISO Standard:6ISO 5593 Rolling BearingsVocabulary3.Terminology3.1 DefinitionsFor definitions of terms used in thisspecification,refer to ABMA STD 4 and to ISO 5593.4.Ordering Information4.1 Whenorderingpartsinaccordancewiththisspecification,specify the following:4.1.1 ASTM desig
10、nation number,including year of issue,4.1.2 Dash number(see Table 1),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 Dec.1,2012.Published Jan
11、uary 2013.Originallyapproved in 2004.Last previous edition approved in 2004 as F243004.DOI:10.1520/F2430-04R12.2The Military codes that are listed in SD-1 give the address and phone numbersof the DoD contacts.These are found in the DoDs ASSIST website:http:/assist.daps.dla.mil/online/start/.3For ref
12、erenced 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.4Available on the DODs ASSIST website,http:/assist.daps.dla.mil/online/sta
13、rt/.5Available from Techstreet,3916 Ranchero Dr.,Ann Arbor,MI 48108,http:/.6Available 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 St
14、ates1 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 Inner ring width,in.(mm),4.1.3.4 Outer ring width,in.(mm),andTABLE 1 Nominal Bearing DimensionsFor Actual Sizes and TolerancesSee Specifications F2246 and F2431MS500072DashNumbe
15、rdBoreDiameter,in.DOutsideDiameter,in.BInnerRingWidth,in.COuterRingWidth,in.MS51961BearingDash Number(SpecificationF2246)MS51962Inner RingDash Number(SpecificationF2431)Nom.Nom.Nom.Nom.-1381183434-1-1-2121143434-2-2-31211411-3-3-4581383434-5-4-5341123434-8-5-613161123434-8-6-7131611211-9-7-87815811-
16、11-8-9151615811-11-9-10113411-14-10-111134114114-15-11-1211817811-18-12-13118178114114-19-13-1413162116114114-22-14-15114211611-21-15-161142116114114-22-16-171516231611-24-17-181382316114114-25-18-191382516114114-28-19-2017162516114114-28-20-21112251611-27-21-221122516114114-28-22-231582916114114-30-23-241343112112-31-24-251343134134-32-25-261516314134134-34-26-272314112112-33-27-282316312134134-36-28-29214312112112-35-29-30238334134134-38-30-31212334112112-37-31-32234414134134-39-32-3323441222-
