1、Designation: F 2431 04Standard Specification forRing Bearing, Inner: For Needle Roller Bearing with ThickOuter Ring1This standard is issued under the fixed designation F 2431; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the yea
2、r of 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.1. Scope1.1 This specification covers inner
3、 rings for needle rollerbearings having thick outer rings.1.2 The inner rings being specified are intended for use onunhardened shafts in conjunction with the MS51961 needleroller bearings specified in Specification F 2246.1.2.1 F or needle roller bearings with thin outer rings(Specification F 2162,
4、 MS17131, MS52141) use inner ringsspecified in Specification F 2163.1.3 Inner rings designed to this specification are intendedfor use in applications requiring high radial load with minimalangular shaft misalignment.1.4 This specification contains many of the requirements ofMS51962, which was origi
5、nally developed by the Departmentof Defense and maintained by the Defense Supply Center inRichmond. The following government activity codes may befound in the Department of Defense, Standardization DirectorySD-1.2Preparing activity Custodians Review ActivityDLAGS4 Army AT Air Force84NavyOSAir Force-
6、992. Referenced Documents2.1 ASTM Standards:3E18 Test Methods for Rockwell Hardness and RockwellSuperficial Hardness of Metallic MaterialsF 2162 Specification for Bearing, Roller, Needle: DrawnOuter Ring, Full Complement, Without Inner Ring, Openand Closed End, Standard TypeF 2163 Specification for
7、Ring, Bearing, Inner: for NeedleRoller Bearing With Drawn Outer RingF 2246 Specification for Bearing, Roller, Needle: ThickOuter Ring With Rollers and Cage2.2 ANSI Standard:4ASME B46.1 Surface Texture (Surface Roughness, Wavi-ness, and Lay)2.3 SAE Standards:5SAE J404 Chemical Compositions of SAE All
8、oy SteelsSAE AMSSTD66 Steel: Chemical Composition and Hard-enability2.4 Military Standard.6MIL-STD-130 Identification Marking of U.S. MilitaryPropertyMIL-STD-197 Packaging of Bearings, Associated Parts andSubassemblies2.5 ABMA Standards:7ABMA 4 Tolerance Definitions and Gauging Practices forBall and
9、 Roller BearingsABMA 18.2 Needle Roller Bearings Radial, Inch Design2.6 ISO Standard:4ISO 5593 Rolling BearingsVocabulary3. Terminology3.1 DefinitionsFor definitions of terms used in this speci-fication, refer to ABMA STD 4 and ISO 5593.4. Ordering Information4.1 When ordering parts in accordance wi
10、th 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 inner ring, including:4.1.3.1 Bore diameter, in. (mm),4.1.3.2 Outside diameter, in. (mm),4.1.3.3 Width, in. (mm), and4.1.3.4 Radius, in. (mm),1This
11、 specification is under the jurisdiction ofASTM Committee F34 on RollingElement Bearings and is the direct responsibility of Subcommittee Automotive/Industrial Bearing.Current edition approved Oct. 1, 2004. Published October 2004.2The Military codes that are listed in SD-1 give the address and phone
12、 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 volume information, refer to the
13、 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 Society of Automotive Engineers (SAE), 400 CommonwealthDr., Warrendale, PA 15096-0001.6Available on the DODs ASSIST website,
14、http:/assist.daps.dla.mil/online/start/.7Available from Techstreet, 1327 Jones Drive, Ann Arbor, MI 48105.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.TABLE 1 Inner Ring DimensionsDashNumberdBore Diameter,in.FOutside Diameter,in.B
15、Width,in.+0.000,-0.005rRadius,in.(see7.3)MatingBearingMS51961Dash Number(seeSpecificationF 2246)Nom. Min. Max. Nom. Min. Max.-138 0.3746 0.375058 0.6241 0.6245 0.760 0.025 -1-212 0.4996 0.500034 0.7488 0.7493 0.760 0.040 -2-312 0.4996 0.500034 0.7488 0.7493 1.010 0.040 -3-458 0.6246 0.625078 0.8738
16、0.8743 0.760 0.040 -5-534 0.7496 0.7500 1 0.9988 0.9993 0.760 0.040 -8-61316 0.8120 0.8125 1 0.9988 0.9993 0.760 0.040 -8-71316 0.8120 0.8125 1 0.9988 0.9993 1.010 0.040 -9-878 0.8745 0.8750 118 1.1236 1.1241 1.010 0.040 -11-91516 0.9370 0.9375 118 1.1236 1.1241 1.010 0.040 -11-10 1 0.9995 1.0000 11
17、4 1.2485 1.2491 1.010 0.040 -14-11 1 0.9995 1.0000 114 1.2485 1.2491 1.260 0.040 -15-12 118 1.1245 1.1250 138 1.3735 1.3741 1.010 0.040 -18-13 118 1.1245 1.1250 138 1.3735 1.3741 1.260 0.040 -19-14 1316 1.1870 1.1875 112 1.4984 1.4990 1.260 0.060 -22-15 114 1.2495 1.2500 112 1.4984 1.4990 1.010 0.06
18、0 -21-16 114 1.2495 1.2500 112 1.4984 1.4990 1.260 0.060 -22-17 1516 1.3210 1.3125 158 1.6234 1.6240 1.010 0.060 -24-18 138 1.3745 1.3750 158 1.6234 1.6240 1.260 0.060 -25-19 138 1.3745 1.3750 134 1.7484 1.7490 1.260 0.060 -28-20 1716 1.4370 1.4375 134 1.7484 1.7490 1.260 0.060 -28-21 112 1.4995 1.5
19、000 134 1.7484 1.7490 1.010 0.060 -27-22 112 1.4995 1.5000 134 1.7484 1.7490 1.260 0.060 -28-23 158 1.6245 1.6250 2 1.9982 1.9989 1.260 0.060 -30-24 134 1.7495 1.7500 214 2.2482 2.2489 1.510 0.060 -31-25 134 1.7495 1.7500 214 2.2482 2.2489 1.510 0.060 -32-26 11516 1.9370 1.9375 212 2.4982 2.4989 1.7
20、60 0.080 -34-27 2 1.9995 2.0000 212 2.4982 2.4989 1.510 0.080 -33-28 2316 2.1869 2.1875 234 2.7482 2.7489 1.760 0.080 -36-29 214 2.2494 2.2500 234 2.7482 2.7489 1.510 0.080 -35-30 238 2.3744 2.3750 3 2.9982 2.9989 1.760 0.080 -38-31 212 2.4994 2.5000 3 2.9982 2.9989 1.510 0.080 -37-32 234 2.7494 2.7
21、500 314 3.2478 3.2487 1.760 0.080 -39-33 234 2.7494 2.7500 314 3.2478 3.2487 2.010 0.080 -40-34 21516 2.9369 2.9375 312 3.4978 3.4987 2.010 0.080 -42-35 318 3.1244 3.1250 334 3.7478 3.7487 2.010 0.100 -43-36 314 3.2494 3.2500 334 3.7478 3.7487 2.010 0.100 -43-37 314 3.2494 3.2500 4 3.9976 3.9985 2.0
22、10 0.100 -45-38 338 3.3742 3.3750 4 3.9976 3.9985 2.010 0.100 -45-39 312 3.4992 3.5000 414 4.2476 4.2485 2.010 0.100 -46-40 334 3.7492 3.7500 414 4.2476 4.2485 2.010 0.100 -46-41 334 3.7492 3.7500 412 4.4976 4.4985 2.510 0.100 -49-42 4 3.9992 4.0000 5 4.9975 4.9985 2.510 0.100 -51-43 412 4.4992 4.50
23、00 512 5.4975 5.4985 2.515 0.100 -52-44 412 4.4992 4.5000 512 5.4975 5.4985 3.015 0.100 -53-45 434 4.7492 4.7500 534 5.7473 5.7483 3.015 0.120 -54-46 5 4.9990 5.0000 6 5.9973 5.9983 2.515 0.120 -55-47 5 4.9990 5.0000 6 5.9973 5.9983 3.015 0.120 -56-48 512 5.4990 5.5000 612 6.4973 6.4983 2.515 0.120
24、-57-49 512 5.4990 5.5000 612 6.4973 6.4983 3.015 01.20 -58-50 6 5.9990 6.0000 714 7.2469 7.2481 3.015 0.120 -59F24310424.1.4 Level of packaging and preservation (for Militaryprocurements).5. Materials and Manufacture5.1 Inner RingRings shall be manufactured of steel, alloyor carbon, carburizing grad
25、e 4620, 4720, 8620, 8720, or 1018to 1022 or 1117; or SAE E51100, SAE E52100, in accordancewith SAE AMS STD 66 or SAE 51100 or SAE J404.5.2 The use of recycled materials that meet the requirementsof the applicable material specification without jeopardizingthe intended use of the item is encouraged.6
26、. Other Requirements6.1 Heat Treatment:6.1.1 Rings:6.1.1.1 Steel 4620, 4720, 8620, 8720, and 1018 to 1022 or1117 shall be case hardened to Rockwell HRC 5865, inaccordance with Test Methods E18. Case depth shall be 0.025in. (0.64 mm) minimum.6.1.1.2 Steel SAE E51100 and SAE 52100 shall be throughhard
27、ened to Rockwell HRC 58-65, in accordance with TestMethods E18.6.2 Protective Coating:6.2.1 Unless otherwise specified, inner rings shall be fur-nished without plating.6.2.2 Manufacturer shall coat bearings with rust preventivefilm.7. Dimensions and Permissible Variations7.1 Products manufactured in
28、 accordance with this specifi-cation shall meet the requirements shown in Table 1.7.1.1 Given the shaft diameter and radial load for a particu-lar bearing application, the bore diameter of the inner ring isselected from the shaft size. The outside diameters and widthare chosen by dimensionally matin
29、g the inner ring with thebearing from Specification F 2246 that exhibits the requiredload capacity.7.2 Rings are intended to be installed on shafts wheremaximum taper does not exceed 0.0005 in./in. (0.0005 mm/mm) of bearing width.7.3 Ring must clear the maximum shaft fillet radius shownin the radius
30、 column of Table 1. The radii or chamfers on theinner diameter of the ring may be unequal. Where the radii areunequal, the surface with the larger relief should be mountedagainst the shaft shoulder. In rings where the inside diameterrelief radii are not equal, the marking shall appear on thesurface
31、with the lesser radius.7.4 Rings shall contain between one and four oil holes, sizeand number shall be in accordance with manufacturers stan-dard practice.7.5 Oil groove optional in accordance with manufacturersstandard practice8. Workmanship, Finish and Appearance8.1 Surface Finish:8.1.1 RingsThe r
32、aceway surface (O.D.) of the inner ringshall have a maximum surface roughness, in accordance withANSI B46.1, of 20 in. Ra (0.51 m Ra).9. Inspection9.1 Inspection of the product shall be agreed upon betweenthe purchaser and the supplier as part of the purchase contract.10. Rejection and Rehearing10.1
33、 Products that fail to conform to the requirements of thisspecification may be rejected. Rejection should be reported tothe producer or supplier promptly and in writing. In case ofdissatisfaction with the results of the test, the producer orsupplier may make claim for rehearing.11. Certification11.1
34、 When specified in the purchase order or contract, thepurchaser shall be furnished certification that samples repre-senting each lot have been either tested or inspected as directedin this specification and the requirements have been met. Whenspecified in the purchase order or contract, a report of
35、the testresults shall be furnished.12. Product Marking12.1 Marking shall consist of the part number and themanufacturers identification in accordance with MIL-STD-130.12.1.1 The part number shall consist of the MS51962designation plus the dash number (see Table 1). For example,MS51962-112.2 In rings
36、 where the inside diameter relief radii are notequal, the marking shall appear on the surface with the lesserradius.13. Packaging13.1 Unless otherwise specified in the contract or purchaseorder, military procurements shall be packaged and preservedin accordance with MIL-DTL-197. Level of packaging a
37、ndpreservation method shall be as specified in the contract orpurchase order.FIG. 1 Schematic DrawingInner RingF243104314. Keywords14.1 inner ring; MS51961; MS51962; needle roller; radialbearingASTM International takes no position respecting the validity of any patent rights asserted in connection w
38、ith any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible tec
39、hnical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful considera
40、tion at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr H
41、arbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).F2431044
