1、Designation: F2511 05 (Reapproved 2013)Standard Specification forRollers, Bearing, Needle, Ferrous, Solid1This standard is issued under the fixed designation F2511; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last r
2、evision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers the procurement requirementsfor solid ferrous needle bearing rollers including the MS19065spherica
3、l ended solid ferrous needle rollers as specified inSpecification F2443.1.2 Intended UseThe rollers covered in this specificationare intended for use in bearings and bearing applications.1.3 This specification contains many of the requirements ofMIL-R-22440, which was originally developed by the Dep
4、art-ment of Defense and maintained by the Defense Supply Centerin Richmond. The following government activity codes may befound in the Department of Defense, Standardization DirectorySD-1.2Preparing Activity Custodians Review ActivitiesDLA-GS4 Army-AT Army-CR4Navy-OS Air Force-84Air Force-99DLA-GS41
5、.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.1.5 This standard does not purport to address all of thesafety concerns, if any, assoc
6、iated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:3A295/A295M Specification for High-Carbon Anti-FrictionBear
7、ing SteelA751 Test Methods, Practices, and Terminology for Chemi-cal Analysis of Steel ProductsD1974 Practice for Methods of Closing, Sealing, and Rein-forcing Fiberboard BoxesD3951 Practice for Commercial PackagingD3953 Specification for Strapping, Flat Steel and SealsD5118/D5118M Practice for Fabr
8、ication of Fiberboard Ship-ping BoxesD5168 Practice for Fabrication and Closure of Triple-WallCorrugated Fiberboard ContainersD6251/D6251M Specification for Wood-Cleated PanelboardShipping BoxesE18 Test Methods for Rockwell Hardness of Metallic Ma-terialsE140 Hardness Conversion Tables for Metals Re
9、lationshipAmong Brinell Hardness, Vickers Hardness, RockwellHardness, Superficial Hardness, Knoop Hardness, Sclero-scope Hardness, and Leeb HardnessE381 Method of Macroetch Testing Steel Bars, Billets,Blooms, and ForgingsE384 Test Method for Knoop and Vickers Hardness ofMaterialsF2443 Specification
10、for Roller, Bearing, Needle, Ferrous,Solid, Spherical End2.2 ANSI Standards:4ASME B46.1 Surface Texture (Surface Roughness,Waviness, and Lay)ASME Y14.5 Dimensioning and TolerancingANSI/ASQ Z1.4 Sampling Procedures and Tables for In-spection by Attributes2.3 ISO Standards:5ISO 5593 Rolling BearingsVo
11、cabularyISO 100121 Quality Assurance Requirements for Measur-ing Equipment2.4 Military Standards:6MIL-PRF-121 Barrier Materials, Greaseproof, Waterproof,Flexible, Heat-SealableMIL-STD-129 Military Marking for Shipment and Storage1This specification is under the jurisdiction ofASTM Committee F34 on R
12、ollingElement Bearings and is the direct responsibility of Subcommittee F34.01 onRolling Element.Current edition approved May 1, 2013. Published May 2013. Originallyapproved in 2005. Last previous edition approved in 2007 as F2511 051. DOI:10.1520/F2511-05R13.2The Military codes that are listed in S
13、D-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 referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards vol
14、ume information, refer to the standards Document Summary page onthe ASTM website.4Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036.5Available from International Organization for Standardization (ISO), 1 rue deVaremb, Case postale 56, CH-1211,
15、Geneva 20, Switzerland.6Available from the DODs Assist internet site located at: http:/assist.daps.dla.mil/online/start/.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1MIL-PRF-131 Barrier Materials, Watervaporproof,Greaseproof, Flexi
16、ble, Heat-SealableMIL-STD-2073-1 DOD Standard Practice for Military Pack-agingMIL-PRF-22191 Barrier Materials, Transparent, Flexible,Heat-SealableMIL-R-22440 Roller, Bearing, Needle, Ferrous, Solid2.5 SAE Standards:7SAE AMS-STD-66 Steel, Chemical Composition and Hard-enabilitySAE J418a Grain Size De
17、termination of Steel3. Terminology3.1 DefinitionsFor definitions of terms used in thisspecification, refer to ISO 5593.3.2 Definitions of Terms Specific to This Standard:3.2.1 heat of steelbatch of steel that was produced in asingle furnace run. Steel from the same “heat” may be found inseveral diff
18、erent billets, bars, or coils of wire.3.2.2 lotlot shall consist of the finished rollers of the sametype, diameter, length, and material, manufactured under thesame conditions, and submitted for acceptance at the sametime. This inspection lot shall be identified by a unique number(manufacturers lot
19、control number) that will provide thetraceability of the rollers to be finished bearing assemblies.3.2.3 surface roughness (Ra)the Ra, or roughnessaverage, surface roughness is the arithmetic average of theabsolute value of the departure of the filtered roughness profilemeasured from the mean line.
20、Ra values are normally specifiedin microinches (micrometres). 1 in. = 0.0254 m (1 m =39.37 in.). See ASME B46.1 for more information on surfaceroughness.4. Classification4.1 The rollers shall be of the following types, as specifiedin the contract or order (see Section 5 and Fig. 1):4.1.1 Type ISpher
21、ical end.4.1.2 Type IIFlat end.4.1.3 Type IIIBall end.4.1.4 Type IVCrankpin end.4.1.5 Type VConical end.4.1.6 Type VITrunnion end.5. Ordering Information5.1 Procurement documents should specify the following:5.1.1 Title, number, and date of this specification,5.1.2 Type of rollers required (see 4.1)
22、,5.1.3 Material required, if different than 6.1,5.1.4 Diameter and length of rollers required (see 8.1),5.1.5 Quantity required,5.1.6 Dimensions and tolerances governing formulation ofroller ends, if different than 8.1,5.1.7 Inspection records required (see 16.1.1),5.1.8 Required levels of packaging
23、 (see 15.1),5.1.9 Preservative required, if different than 15.2.1.2 and15.2.1.3,5.1.10 Method of unit packaging required (see 15.2.1.3),5.1.11 Number of rollers per unit package (see 15.2.1.3),5.1.12 When case liner is not required (see 15.3.1.3), and5.1.13 Special marking, if required (see 15.4).6.
24、 Materials and Manufacture6.1 MaterialUnless otherwise specified in the contract ororder (see Section 5), the rollers shall be manufactured fromchrome alloy steel conforming to the chemical composition ofsteel number AISI E52100 of SAE AMS-STD-66, AMS 6440or AMS 6444. The steel shall be homogeneous
25、in structure,free from pipes, seams, laminations, bursts, flakes, excessivesegregation, and other detrimental defects (see 11.2.1). Thesteel shall have an austenite grain size of 7 or finer (see 11.3.3).The rollers shall be free from surface decarburization (see11.2.2).6.1.1 Inclusion RatingThe chro
26、me alloy steel shall notexceed the inclusion rating specified for billets for wire androds used in the manufacture of balls and rollers, as specifiedin Specification A295/A295M.7. Other Requirements7.1 HardnessThe rollers shall have a uniform hardness of60 to 64 Rockwell C or equivalent (see 11.2.3)
27、.8. Dimensions and Permissible Variations8.1 Construction and DimensionsThe rollers shall be ofthe type, diameter, and length specified in the contract or order(see Section 5) and shall be of solid construction. An illustra-tion of the types of rollers covered herein is shown in Fig. 1.Unless otherw
28、ise specified in the contract or order (see Section5), dimensions and tolerances governing the formation of theends of the roller shall be in accordance with commercialpractice. Dimensions and tolerances shall be interpreted inaccordance was ASME Y14.5.8.1.1 DiameterThe diameter of the roller shall
29、be within+0.0000 in. (+0.000 mm) to 0.0002 in. (0.005 mm) of thevalue specified in the contract or order (see Section 5).8.1.2 Length:8.1.2.1 Types I, III, V, and VIThe length of the roller shallbe within +0.000 in. (+0.00 mm) to 0.020 in. (0.51 mm) ofthe value specified in the contract or order (se
30、e Section 5).8.1.2.2 Type IIThe length of the roller shall be within+0.000 in. (+0.00 mm) to 0.006 in. (0.15 mm) of the valuespecified in the contract or order (see Section 5).8.1.2.3 Type IVThe length of the roller shall be within+0.000 in. (+0.00 mm) to 0.010 in. (0.25 mm) of the valuespecified in
31、 the contract or order (see Section 5).9. Workmanship, Finish, and Appearance9.1 Visual AppearanceThe cylindrical surface of the rollershall be free from scratches, pits, rust, indications of soft spots,and other surface imperfections.9.2 Surface RoughnessThe surface roughness of the rollerdiameter
32、shall not exceed 8 in. Ra (0.20 m Ra). Surfaceroughness shall be interpreted in accordance with ASMEB46.1.7Available from Society of Automotive Engineers (SAE), 400 CommonwealthDr., Warrendale, PA 15096-0001.F2511 05 (2013)2FIG. 1 Types of RollersF2511 05 (2013)310. Sampling10.1 For ExaminationAsamp
33、le of rollers shall be selectedfrom each lot by the inspector in accordance with the proce-dures of ANSI/ASQ Z1.4 with an AQL of 1.0%.10.2 For TestsA sample of rollers shall be selected fromeach lot by the inspector in accordance with the procedures ofANSI/ASQ Z1.4 with an AQL of 4.0%.11. Inspection
34、11.1 Examination:11.1.1 Dimensional and Visual Examination The samplerollers, selected in accordance with 10.1, shall be dimension-ally and visually examined to determine compliance with 8.1and 9.1 respectively. Any unit of the sample containing one ormore defects shall be rejected. If no defects ar
35、e found in thesample, the sample lot shall be accepted. If any defects arefound in the sample, the entire lot shall be inspected for thedefective characteristic and defective parts removed from thelot.11.1.2 Surface Roughness Examination The samplerollers, selected in accordance with 10.1, shall be
36、examined todetermine compliance with 9.2. Any unit of the sample, whichdoes not comply with the requirements specified in 9.2, shall berejected. Lot acceptance shall be in accordance with 10.1.Ifnodefects are found in the sample, the sample lot shall beaccepted. If any defects are found in the sampl
37、e, the entire lotshall be inspected for the defective characteristic and defectiveparts removed from the lot.11.2 Tests:11.2.1 Hot Acid Etch TestThe sample rollers, selected inaccordance with 10.2, shall be etched for a minimum period of15 min in a solution of 50 % hydrochloric acid and 50 % water.T
38、he temperature of the solution shall be 160F to 180F. Afteretching, the sample rollers shall be examined at a magnificationof 4 diameters. If any unit of the sample contains one or moredefects, such as cracks, seams, laps, pits, or other detrimentaldefects (see 6.1 and 9.1), the lot shall be rejecte
39、d.11.2.2 Decarburization TestThe sample rollers, selectedin accordance with 10.2, shall be totally immersed in 5 % Nitalsolution (concentrated nitric acid in alcohol) for a minimumperiod of 30 s. The temperature of the solution shall be 75 to85F. If any unit of the sample exhibits areas of white to
40、lightgray, the lot shall be rejected.11.2.3 Hardness TestThe sample rollers, selected in ac-cordance with 10.2, shall be tested for compliance with 7.1.The test procedures shall be in accordance with Test MethodsE18 Rockwell for superficial hardness tests and Test MethodE384 for microhardness testin
41、g. Tables E140 shall be used forhardness conversion to the C Rockwell scale. The rollers shallbe subjected to the test on flats of sufficient width, and materialof sufficient thickness, to give a true reading. For rollers lessthan116 in. (1.6 mm) in diameter, an appropriate superficialhardness or mi
42、crohardness method shall be used. If any unit ofthe sample does not comply with the requirements of 7.1, thelot shall be rejected. The manufacturer may have a standardrepair procedure to retemper the rollers. The rollers wouldrequire reinspection after a retempering process.11.3 Inspection of Materi
43、alThe material used in themanufacture of the rollers furnished under this specificationshall have been inspected in accordance with and passed thefollowing examination and tests.11.3.1 Chemical AnalysisA chemical analysis shall bemade on each heat of steel. The samples for analysis shall beselected
44、from the billets, bars, or wire used in the manufactureof the rollers. The chemical analysis shall be conducted inaccordance with the test methods of the material specificationor Test Methods, Practices, and Terminology A751. Thechemical composition determined by the above proceduresshall be within
45、the check analysis tolerances specified in SAEAMS-66 and standard industry practice.11.3.2 Macro-ExaminationA macro-examination shall bemade on each heat of steel. The samples for examination shallbe selected from the billets for the wire or rods used in themanufacture of the rollers. The samples sh
46、all be selected inaccordance with Method E381. The macro-examination shallbe conducted in accordance with Method E381. The qualityand cleanliness of the steel as indicated by the results of themacro examination shall be equal to or better than macrographsS2, R2, and C2 of Method E381 with defects Dl
47、 through D8unacceptable.11.3.3 Austenitic Grain Size TestAn austenitic grain sizetest shall be made on each heat of steel. The samples for testshall be selected from the billets for the wire or rods used inaccordance with SAE J418a. The austenitic grain size deter-mined by the above procedures shall
48、 be within the rangespecified in 6.1.11.3.4 Inclusion Rating TestAn inclusion rating test shallbe made on each heat of steel. The samples for test shall beselected from the billets for the wire or rods used in themanufacture of the rollers. The test shall be conducted inaccordance with the inclusion
49、 rating test specified in Specifi-cation A295/A295M. The inclusion rating determined by theabove procedures shall conform to the requirements specifiedin 6.1.1.11.4 Preservation, Packaging, Packing, and Marking Theinspector shall ascertain that the preservation, packaging,packing, and marking of rollers furnished under this specifica-tion are in accordance with the requirements of Section 15. Ifno preservation, packaging, packing, or marking defects arefound, the shipment shall be accepted.11.4.1 Classification of Defect
