1、Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any data that may improve this document should be sent to: STDZNMGTdla.mil or DLA Aviation VEB, 8000 Jefferson Davis Highway, Richmond, VA 23297-5616. Since contact information can change, you may want to verify the
2、 currency of this address information using the ASSIST database at https:/assist.daps.dla.mil/. FSC 3110 INCH-POUND A-A-59657B 8 September 2011 SUPERSEDING A-A-59657A 22 May 2006 COMMERCIAL ITEM DESCRIPTION BEARINGS, ROLLER, TAPERED, DOUBLE ROW, STEEP ANGLE, TWO SINGLE CONES, ONE DOUBLE CUP, NONADJU
3、STABLE (TYPE TNAS) The General Services Administration has authorized the use of this commercial item description for all federal agencies. 1. SCOPE. This commercial item description (CID) covers government acquisition requirements for complete (cone with rollers and cup) double row, tapered, roller
4、 bearings with steep angle, two single cones, and one double cup, nonadjustable (type TNAS) for general purpose use. These bearings are not intended for use in special precision applications such as on aircraft, precision ordnance, or submarine equipment 2. CLASSIFICATION. The roller bearings shall
5、be of one type (TNAS) and classified by the size codes listed in table I. The column headings in table I refer to bearing characteristics defined in figure 1. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59657B 2 FIGURE 1. Bearing characterist
6、ics. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE I. Size codes and dimensions. 3A-A-59657B Size code Part number 1d D T B R 2r 2d aD aK factor Basic dynamic load ratings (lb.) Bore Outside diameter Bearing width over cups Cone width Max. sh
7、aft fillet radius Max. housing fillet radius Recommended shoulder diameter Cone-cup Shaft Housing Two row radial 001 NA21075 - 21226D 0.7500 2.2500 1.4375 1.9375 0.06 0.03 1.24 2.01 .99 12800 002 NA43131 - 43319D 1.3125 3.1875 1.5625 2.1875 0.09 0.06 1.91 2.91 .87 21500 003 NA44143 - 44363D 1.4375 3
8、.6250 1.5625 2.1875 0.03 0.06 2.01 3.35 .75 23300 004 NA44163 - 44363D 1.6250 3.6250 1.5625 2.1875 0.03 0.06 2.13 3.35 .75 13600 005 NA53176 - 53390D 1.7500 3.8750 1.7500 2.5626 0.09 0.06 2.40 3.54 .79 27700 006 NA55200 - 55444D 2.0000 4.4375 1.8125 2.5625 0.09 0.06 2.72 4.13 .66 29400 007 NA66212 -
9、 66462D 2.1250 4.6250 2.1250 2.8750 0.14 0.03 2.87 4.37 .93 41200 008 NA72212 - 72488D 2.1250 4.8750 2.1875 3.0625 0.09 0.06 2.91 4.53 .79 50000 009 NA9378 - 9320D 3.0000 7.0000 2.9375 4.3065 0.14 0.09 4.13 6.46 .76 49100 010 NA98350 - 98789D 3.5000 7.8750 3.1581 4.5625 0.14 0.09 4.65 7.40 .92 11210
10、0 011 NA97450 - 97901D 4.5000 9.0000 3.3125 4.5625 0.14 0.09 5.51 8.38 .79 102600 1Part numbers are for reference only. Part numbers reflect the cup and cone numbers used by industry and the ABMA. Some cones and cups may be used in multiple configurations and are not limited to one bearing assembly.
11、 2These maximum fillet radii shall be cleared by the bearing corners. 3Minus value indicates load center inside cone backface. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59657B 4 3. SALIENT CHARACTERISTICS 3.1 Dimensions. Bearing dimensions
12、(and dynamic load ratings, see 3.4) shall conform to the requirements specified in table I for each of the bearing part numbers. The listed dimensions conform to the requirements specified in American Bearing Manufacturers Association (ABMA) Standard 19.2, “Tapered Roller Bearings - Radial Inch Desi
13、gn“. The bearing size shall be specified in the acquisition order (see 7.3(b). For any unlisted bearing size codes, the associated dimensional and dynamic load rating requirements should also be specified in the acquisition order. 3.2 Materials. 3.2.1 Cones (inner rings), cups (outer rings), and rol
14、lers. The bearing cones, cups, and rollers shall be made of case carburized or through-hardened steel produced in accordance with the ASTM International (ASTM) A295/A295M, “Standard Specification for High-Carbon Anti-Friction Bearing Steel“, or ASTM A534, “Standard Specification for Carburizing Stee
15、ls for Anti-Friction Bearings“. The steel shall show a fine fracture grain size in accordance with ASTM E112, “Standard Test Methods for Determining Average Grain Size“. Material hardness shall be no less than Rockwell hardness number of 58 on Rockwell C scale (HRC) and no more than 64 HRC as define
16、d in ASTM E18, “Standard Test Methods for Rockwell Hardness of Metallic Materials“. 3.2.2 Cage. The bearing cage material shall be impervious to deterioration from any lubricant, preservative, solvent, or other chemical substance expected to contact the bearing during normal use or storage. Similarl
17、y, the material shall not cause any chemical deterioration of any other bearing component. The cages shall be made from carbon steel (one piece stamped). Materials shall operate from -65 to 230 F (-53.9 to 110 C). 3.3 Tolerance class. The tolerance limits for bearings shall conform to tolerance clas
18、s 4 as tabulated in ABMA Standard 19.2. Allowable tolerances for bearing components and assembled bearings are listed in tables II through VI. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59657B 5 TABLE II. Running clearance. Bearings manufact
19、ured with correct running clearance for these fits Size code (ref) Live shaft diameter limits Housing Tight fit Live shaft bore limits Dead shaft bore limits Loose fit Tight fit 001 0.7515 - 0.7510 2.2530 - 2.2520 2.2490 - 2.2480 002 1.3140 - 1.3135 3.1905 - 3.1895 3.1865 - 3.1855 003 1.4390 - 1.438
20、5 3.6280 - 3.6270 3.6240 - 3.6230 004 1.6265 - 1.6260 3.6280 - 3.6270 3.6240 - 3.6230 005 1.7515 - 1.7510 3.8780 - 3.8770 3.8740 - 3.8730 006 2.0020 - 2.0010 4.4405 - 4.4395 4.4365 - 4.4355 007 2.1270 - 2.1260 4.6280 - 4.6270 4.6240 - 4.6230 008 2.1270 - 2.1260 4.8780 - 4.8770 4.8740 - 4.8730 009 3.
21、0025 - 3.0015 7.0030 - 7.0020 6.9990 - 6.9980 010 3.5030 - 3.5020 7.8780 - 7.8770 7.8740 - 7.8730 011 4.5035 - 4.5025 9.0030 - 9.0020 8.9990 - 8.9980 TABLE III. Cone bore tolerance. Cone bore (d) Size range Tolerance Over Inclusive Plus Minus 0.0000 3.0000 5 0 3.0000 6.0000 10 0 Note: Allowable tole
22、rances are in 0.0001 inch. TABLE IV. Cup diameter tolerance. Cup diameter (D) Size range Tolerance Over Inclusive Plus Minus 0.0000 12.0000 10 0 12.0000 24.0000 20 0 Note: Allowable tolerances are in 0.0001 inch. Provided by IHSNot for ResaleNo reproduction or networking permitted without license fr
23、om IHS-,-,-A-A-59657B 6 TABLE V. Bearing width tolerance. Bearing width (T) Bore size range Tolerance Over Inclusive Plus Minus 0.0000 5.0000 100 0 5.0000 12.0000 300 0 Note: Allowable tolerances are in 0.0001 inch. TABLE VI. Assembled bearing tolerance. Assembled bearing maximum radial runout Cup o
24、utside diameter (D) Tolerance Over Inclusive 0.0000 24.0000 20 Note: Allowable tolerances are in 0.0001 inch. 3.4 Dynamic load rating. The bearing dynamic load rating shall conform to the requirements specified in table I for each bearing size code. The listed ratings conform to the requirements spe
25、cified in ABMA Standard 11, “Load Ratings and Fatigue Life for Roller Bearings“. 3.5 Lubrication. The bearings shall be furnished without lubrication. 3.6 Contact angle. All bearings are steep angle bearings having a contact angle between 22 and 31 degrees. The contact angle is the angle between the
26、 line of action of the roller load and a plane perpendicular to the bearing axis. 4. REGULATORY REQUIREMENTS 4.1 Recovered materials. The offeror/contractor is encouraged to use recovered materials to the maximum extent practicable, in accordance with paragraph 23.403 of the Federal Acquisition Regu
27、lation (FAR). 4.2 Foreign acquisition restrictions. Unless otherwise indicated in the solicitation and resulting contract, the foreign acquisition restrictions in Section 252.225, Clause 252.225.7016, of the Defense Federal Acquisition Regulation Supplement (DFARS) apply to products described by thi
28、s CID. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59657B 7 5. PRODUCT CONFORMANCE PROVISIONS 5.1 Product conformance. The products provided shall meet the salient characteristics of this CID, conform to the producers own drawings, specificat
29、ions, standards, and quality assurance practices, and be the same product offered for sale in the commercial marketplace. The government reserves the right to require proof of such conformance. 5.2 Market acceptability. The products offered must have been previously sold either to the government or
30、on the commercial market. 6. PACKAGING 6.1 Preservation, packing, and marking. Unless otherwise specified in the acquisition order, the bearings shall be preserved, packaged, and marked in accordance with MIL-DTL-197, “Packaging of Bearings, Associated Parts and Subassemblies“ (see 7.3(c). 7. NOTES
31、7.1 Part or identification number (PIN). The following PIN procedure is for government purposes and does not constitute a requirement for the contractor. AA59657 - 002 Example of reference part number Size code (see table I) CID Number AA59657 - 002 indicates: Bearing bore 1.3125 inches; outside dia
32、meter 3.1875 inches; width 1.5625 inches. 7.2 Sources of documents. 7.2.1 DFARS and FAR. Copies of DFARS and FAR may be obtained from the Superintendent of Documents, P.O. Box 371954, Pittsburgh, PA 15250-7954. Electronic copies of DFARS may be obtained from http:/www.acq.osd.mil/dpap/dars/dfarspgi/
33、current/index.html. Electronic copies of FAR may be obtained from https:/www.acquisition.gov/far/. 7.2.2 Military specifications. Copies of military specifications may be obtained from Standardization Documents Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094. Electronic copi
34、es may be obtained from https:/assist.daps.dla.mil/. 7.2.3 ABMA standards. Copies of ABMA standards may be obtained from the American Bearing Manufacturers Association, 2025 M Street NW, Suite 800, Washington, DC 20036. Electronic copies may be obtained from http:/www.abma-dc.org/. Provided by IHSNo
35、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59657B 8 7.2.4 ASTM standards. Copies of ASTM standards may be obtained from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959. Electronic copies may be obtained from http:/w
36、ww.astm.org/. 7.3 Ordering data. The acquisition order should specify the following information: a. CID document number, revision, and CID PIN. b. Bearing size (with dimension/load requirements if size is unlisted) (see 3.1). c. Preservation, packaging, and marking requirements (see 6.1). 7.4 Cross-
37、reference information. Table VII relates the original specification slant sheets to the replacement CIDs. TABLE VII. Federal specification to CID cross-reference. FF-B-187B specification sheets Replacement CID numbers ABMA types 1 A-A-59649 TS 2 A-A-59650 TSF 3 A-A-59651 TSS 4 A-A-59652 TSSF 5 A-A-5
38、9653 TDI and TDIS 6 A-A-59654 TDO 7 A-A-59655 TDOS 8 A-A-59656 TNA (normal angle) 9 A-A-59657 TNAS (steep angle) 10 A-A-59658 TNASW 11 A-A-59659 TNASWE 7.5 Subject term (key word) listing. Bore Cone Cup Load Width Provided by IHSNot for ResaleNo reproduction or networking permitted without license f
39、rom IHS-,-,-A-A-59657B 9 MILITARY INTERESTS: CIVIL AGENCY COORDINATING ACTIVITY:Custodians: GSA - FAS Army - AR Navy - MC Air Force - 99 DLA - GS Review Activities: Navy - OS Air Force - 84 Preparing Activity: DLA - GS4 (Project 3110-2011-026) NOTE: The activities listed above were interested in thi
40、s document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST database at https:/assist.daps.dla.mil/. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
