1、Designation: F2332 06 (Reapproved 2013)Standard Specification forAnnular Ball Bearings for Instruments and PrecisionRotating Components1This standard is issued under the fixed designation F2332; the number immediately following the designation indicates the year oforiginal adoption or, in the case o
2、f 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.1. Scope1.1 This specification covers annular ball bearings intendedprimarily for use in instrument and pr
3、ecision rotating compo-nents. Instrument and precision ball bearings should meettolerances specified in ABMA Standard 12.2, Instrument BallBearings Inch Design for Classes ABEC 5P and 7P.1.2 Intended UseBall bearings defined by this specifica-tion are intended for use in critical components of instr
4、umentsystems. Such components range from air circulating blowersand drive motors through precision gear trains, gyro gimbals,and pickoffs to rate integrating spin-motors.1.3 The specification contains many of the requirements ofMIL-B-81793, which was originally developed by the Depart-ment of Defens
5、e and maintained by the Naval Air SystemsCommand (Navy-AS) in Lakehurst, NJ. The following gov-ernment activity codes may be found in the Department ofDefense, Standardization Directory SD-1.2Preparing activity Custodians Review activitiesNavy - AS Army - AT Army-AVNavy - AS Navy - MC, SHAir Force -
6、 99 Air Force84DLA - GS1.4 ClassificationAnnular ball bearings for instrumentand precision rotating components shall be of the followingtypes, as specified:1.4.1 Type IAnnular ball bearing, for instruments andprecision rotating components, deep groove, unflanged; (SeeAnnex A1 Annex A4)1.4.2 Type IIA
7、nnular ball bearing, for instruments andprecision rotating components, deep groove, flanged; (SeeAnnex A5 Annex A8)1.4.3 Type IIIAnnular ball bearing, for instruments andprecision rotating components, deep groove, unflanged, innerring extended; (See Annex A9 Annex A12)1.4.4 Type IVAnnular ball beari
8、ng, for instruments andprecision rotating components, deep groove, flanged, inner ringextended; (See Annex A13 Annex A16)1.4.5 Type VAnnular ball bearing, for instruments andprecision rotating components, angular contact, unflanged,nonseparable, and counterbored outer ring; (See Annex A17 Annex A20)
9、1.4.6 Type VIAnnular ball bearing, for instruments andprecision rotating components, angular contact, flanged,nonseparable, and counterbored outer ring on flange side; (SeeAnnex A21 Annex A24)1.4.7 Type VIIAnnular ball bearing, for instruments andprecision rotating components, angular contact, unfla
10、nged,separable, and stepped inner ring; (See Annex A25 AnnexA28)1.4.8 Type VIIIAnnular ball bearing, for instruments andprecision rotating components, angular contact, flanged,separable, and stepped inner ring; (See Annex A29 AnnexA32)1.4.9 Type IXAnnular ball bearing, for instruments andprecision r
11、otating components, angular contact, unflanged,nonseparable, and stepped inner ring. (See AnnexA33 AnnexA36)1.5 Inch-Pound SpecificationThis specification coversonly the inch-pound bearings.1.5.1 The values stated in inch-pound units are to beregarded as standard. No other units of measurement arein
12、cluded in this standard.1.6 This standard does not purport to address all of thesafety concerns, if any, associated 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 requirements pri
13、or to use.2. Referenced Documents2.1 ASTM Standards:3A240/A240M Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure1This specification is under the jurisdiction ofASTM Committee F34 on RollingElement Bearings and is the direct responsibility of Subcomm
14、ittee F34.06 onAerospace.Current edition approved May 1, 2013. Published October 2013. Originallyapproved in 2006. Last previous edition approved in 2006 as D7476 - 06. DOI:10.1520/F2332-06R13.2The military codes that are listed in SD-1 give the address and phone numbersof the DoD contacts. These ar
15、e found in the DoDs ASSIST website http:/assist.daps.dla.mil/.3For 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
16、.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1Vessels and for General ApplicationsA313/A313M Specification for Stainless Steel Spring WireA380 Practice for Cleaning, Descaling, and Passivation ofStainless Steel Parts, Equipment, an
17、d SystemsA580/A580M Specification for Stainless Steel WireA666 Specification forAnnealed or Cold-WorkedAusteniticStainless Steel Sheet, Strip, Plate, and Flat BarA756 Specification for Stainless Anti-Friction Bearing SteelA967 Specification for Chemical Passivation Treatments forStainless Steel Part
18、sD2273 Test Method for Trace Sediment in Lubricating OilsE45 Test Methods for Determining the Inclusion Content ofSteelE140 Hardness Conversion Tables for Metals RelationshipAmong Brinell Hardness, Vickers Hardness, RockwellHardness, Superficial Hardness, Knoop Hardness, Sclero-scope Hardness, and L
19、eeb Hardness2.2 ABMA Standards:4STD 1 Terminology for Anti-Friction Ball and Roller Bear-ings and PartsSTD 10 Metal BallsSTD 12.2 Instruments Ball BearingsInch Design2.3 SAE-AMS Specifications:5SAE-AMS 2303 Aircraft Quality Steel Cleanliness, Marten-sitic Corrosion Resistant Steels, Magnetic Particl
20、e Inspec-tion ProcedureSAE-AMS 5688 Steel, Corrosion Resistant Wire, 18CR-9.0NI, (SAE 30302), Spring TemperSAE-AMS 5880 Steel, Corrosion Resistant Bars, Wire andForgings, 17CR-0.52MO (0.95-1.2C)SAE-AMS 6444 Steel Bars, Forgings, and MechanicalTubing, 1.45 Cr (0.98-1.10C) (SAE 52100) PremiumAircraft
21、Quality Consumable Electrode Vacuum MeltedSAE-AMS-QQ-S-763 Steel Bars, Wire, Shapes, andForgings, Corrosion Resistant2.4 ASME Standards:6B46.1 Surface Texture (Surface Roughness, Waviness andLay)B89.3.1 Measurement of Out of Roundness2.5 ASQC Standards:7Z1.4 Sampling Procedures and Tables for Inspec
22、tion byAttributes2.6 NCLS Standard8Z540.1 Laboratories, Calibration, Measuring and TestEquipment2.7 ISO Standards:9ISO 1224 Bearings, RollingInstrument Precision BearingsISO 3290 Bearings, RollingBallsDimensions and Toler-ancesISO 10012-1 Quality Assurance Requirements for Measur-ing EquipmentISO 14
23、644-1 Cleanrooms and Associated Controlled Envi-ronments. Part 1: Classification of Air CleaninessISO 14644-2 Cleanrooms and Associated Controlled Envi-ronments. Part 2: Specifications for Testing and Monitor-ing to Provide Continued Compliance with ISO 14644-12.8 Department of Defense:10Specificati
24、ons:MIL-DTL-197 Packaging of Bearings, Associated Parts andSub-AssembliesMIL-PRF-6085 Lubricating Oil, Instrument, Aircraft, LowVolatilityMIL-PRF-23827 Grease, Aircraft and Instrument, Gear andActuator Screw, NATO Code G-354, MetricMIL-DTL-53131 Lubricating Oil, Precision Rolling Ele-ment Bearing, P
25、olyalphaolefin BasedMIL-S-81087 Silicone Fluid, Chlorinated Phenyl MethylPolysiloxane, NATO Code Number H-536MIL-PRF-81322 Grease, Aircraft, General Purpose, WideTemperature RangeMIL-B-81744 Barrier Coating Solution, Lubricant Migra-tion DeterringDOD-L-81846 Lubricating Oil, Instrument, Ball Bearing
26、,High Flash PointMIL-G-81937 Grease, Instrument, Ultra Clean, MetricMIL-PRF-83261 Grease, Aircraft, Extreme Pressure,Anti-WearStandards:MIL-STD-129 Military MarkingMIL-STD-130 Identification Marking of U.S. Military Prop-ertyMIL-STD-206 Friction Torque Testing for Bearings, Ball,Annular (Instrument
27、Type)MIL-STD-1334 Process for Barrier Coating of Anti-FrictionBearingsMIL-STD-1647 Identification Markings for DomesticallyManufactured Bearings, Ball,Annular for Instruments andPrecision Components2.9 Federal Standards:FED-STD-791 Lubricants, Liquid Fuel and RelatedProducts, Methods of Testing103.
28、Performance Requirements3.1 AnnexesThe individual item requirements shall be asspecified herein and in accordance with the applicable annex.In the event of any conflict between the requirements of thisspecification and the annexes, the latter shall govern.3.2 Materials:3.2.1 Ball and Ring MaterialsB
29、alls and rings shall bemade of corrosion-resistant steel, 440C (UNS S44004), con-forming to SAE-AMS 5880 or A756; chromium-alloy steel4Available from the American Bearing Manufacturers Association, 2025 M St.NW, Suite 800, Washington, DC 20036, http:/www.amba-dc.org/.5Available from Society of Autom
30、otive Engineers (SAE), 400 CommonwealthDr., Warrendale, PA 15096-0001, http:/www.sae.org.6Available from American Society of Mechanical Engineers (ASME), ASMEInternational Headquarters, Three Park Ave., New York, NY 10016-5990, http:/www.asme.org.7Available from American Society for Quality (ASQ), 6
31、00 N. Plankinton Ave.,Milwaukee, WI 53203, http:/www.asq.org.8National Conference of Standards Laboratories (NCSL) Intl, 1800 30th Street,Suite 305, Boulder, CO 80301-1026, http:/www.ncsli.org/9Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036,
32、 http:/www.ansi.org.10Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5094, http:/assist.daps.dla.mil/.F2332 06 (2013)252100 (UNS G52986) conforming to SAE-AMS 6444 asspecified by the applicable annexes. (A single material isre
33、presented by each annex.)3.2.1.1 Material Cleanliness/Inclusion Content440Ccorrosion-resistant steels used for production of bearings shallmeet the cleanliness requirements of SAE-AMS 5880.Chromium-alloy steel used for the production of bearings shallmeet the cleanliness requirements of SAE-AMS 6444
34、.3.2.1.2 PassivationPassivation shall be accomplished inaccordance with A380 and A967 on all bearing componentsfabricated from corrosion-resistant steel after completion of allmachining or metal-removing operations and before assembly.3.2.2 Retainer MetalWhen corrosion-resistant steel isspecified, c
35、rown retainers shall be UNS S41000 and ribbonretainers shall be either UNS S30200, UNS S30500, or UNSS43000 in accordance with A240/A240M or A666. Configu-ration shall be as specified by the part number designator in theRetainer table of the annexes.3.2.3 Shield MaterialShield material shall be corr
36、osion-resistant steel conforming to A580/A580M, Condition A,A240/A240M,orA666.3.2.4 Snap Ring MaterialSnap ring material shall becorrosion-resistant steel conforming to A313/A313M, Type302, Class 1 or SAE-AMS 5688.3.2.5 Seal MaterialSeal materials shall be as specified bythe part number designator i
37、n the Closures tables of theannexes. Materials shall be compatible with and shall beresistant to deterioration caused by lubricant, preservative,hydraulic fluid, solvents, or other substances and chemicalsthat can be expected to come into contact with the bearing andshall cause no deterioration of t
38、he same. Seal materials shallnot affect or be affected by the lubricants and solvents referredto in this specification. Synthetic rubber seals shall operatefrom 65 to 230F (54 to 110C).3.3 Design and ConstructionBearings shall be of thedesign, construction, and physical dimensions specified on theap
39、plicable annex (see 3.1).3.4 ClosuresThe number, type, and locations of closuresshall be as specified by the part number designator in theClosures tables of the annexes. Unless otherwise specified,location for single closures shall be on either side of asymmetrical bearing.3.4.1 Closure AttachmentCl
40、osures shall be securely at-tached to the outer ring and shall permit removal and reinstal-lation using common bearing working tools. Snap ring wiresare preferred, but “self-holding” closures are permitted pro-vided they withstand service vibration conditions withoutbecoming detached. Reinstallation
41、 does not apply to syntheticrubber seals.3.5 Visual Requirements:3.5.1 Surface AppearanceCylindrical mounting surfaces,cage piloting lands, and faces of inner and outer rings shallhave a smooth finished appearance characteristic of one ormore of the following processes: grinding, honing, lapping,pol
42、ishing, or tumbling. The surfaces shall be free of visible toolmarks, chatter and waviness, scratches with raised metal, pits,rust, or other surface imperfections. Metal retainers, snap rings,and closures shall have a smooth finished appearance charac-teristic of a tumbling process and shall be free
43、 of burrs, dents,and folded material. Machined nonmetallic retainers shall befree of delaminations and shall be deburred.3.5.2 Cracks and FracturesRings, balls, retainers, snaprings, and closures shall be free of cracks and fractures.3.5.3 Material ImperfectionsNonmetallic retainers shallhave no mat
44、erial imperfections, such as chipping and pits, inball contact areas, and material imperfections in other areasshall not exceed 0.015-in. (0.038-cm) major dimension.3.5.4 Particulate ContaminationAll exterior surfaces andinterior areas of the bearing shall be free of foreign particlesvisible using 1
45、0 magnification.3.6 Dimensions:3.6.1 Boundary DimensionsThe boundary dimensions foreach specification sheet shall be in accordance with theBoundary Dimensions table of that annex.3.6.2 Tolerance ClassTolerance classes for ABEC 5P or7P shall be in accordance with the tolerance tables of ABMAStandard
46、12.2. The tolerance classes shall apply to all bearingsizes listed in the Boundary Dimensions tables of the annexes.3.6.3 RoundnessRaceways shall be round within the val-ues specified in Table 1 when measured by the minimum radialseparation (MRS) method. This method consists of construct-ing two con
47、centric circles, which fully encompasses the polartrace of the measured surface and have the least possible radialseparation. This radial separation is the measurement of out ofroundness.3.6.4 Radial Internal ClearanceRadial internal clearance(radial play) of deep groove radial bearings shall be ass
48、pecified by the part number designator in the Radial InternalClearance tables of the annexes.3.6.5 Contact AngleThe contact angle or radial internalclearance of angular contact bearings shall be as specified bythe part number designator in the Radial Internal Clearancetables of the annexes and refle
49、cts the unit of the appropriatemethod of measurement. The contact angle shall be as definedby ABMA Standard 1. A bearing offered with a singularcontact angle shall obtain that value within 61.5 whenmeasured in accordance with 4.7.5.1.3.7 Performance TestThe performance test shall be asspecified by the part number designator in the PerformanceTest tables of the annexes.3.7.1 Starting TorqueMaximum starting torque shall be inaccordance with the values listed in Table 2.3.8 Ball QualityThe minimum quality level of ba
