1、 METRIC A-A-59581C 05 August 2008 SUPERSEDING A-A-59581B 23 September 2003 Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any data COMMERCIAL ITEM DESCRIPTION BEARING, BALL, ANNULAR, SINGLE ROW, RADIAL, NON-FILLING SLOT, BORE DIAMETERS UNDER 10 MM The General Se
2、rvices Administration has authorized the use of this commercial item description for all federal agencies. 1. SCOPE. This commercial item description (CID) covers metric, small bore (under 10 mm), non-filling slot, radial, single row, annular ball bearings for general-purpose use. These bearings are
3、 not intended for use in critical aeronautical or critical special precision applications. 2. CLASSIFICATION. The ball bearings shall be classified by the class, sizes, cage materials, shield and seal configurations, precision tolerances, and lubricant and preservative requirements listed below: Cla
4、ss 1 - dimension series 02 2 - dimension series 03 4 - dimension series 10 Size - bearing dimensions (see table I) Cage materials (see table II) Shield and seal configurations (see table III) Precision tolerances (see table IV) Lubricant and preservative requirements (see table V) 3. SALIENT CHARACT
5、ERISTICS 3.1 Dimensions. Bearing boundary dimensions shall conform to the requirements specified in table I for each of the coded bearing sizes. The listed dimensions conform to the requirements specified for the listed bearing sizes from dimension series 02, 03, and 10 in American Bearing that may
6、improve this document should be sent to: STDZNMGTdla.mil or Defense Supply Center Richmond (DSCR), ATTN: DSCR-VEB, 8000 Jefferson Davis Highway, Richmond, VA 23297-5616. AMSC N/A FSC 3110 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59581C 2 M
7、anufacturers Association (ABMA) Standard 20, “Radial Bearings of Ball, Cylindrical Roller, and Spherical Roller Types, Metric Design“. The bearing size shall be as specified in the acquisition order (see 7.3(b). For unlisted bearing sizes, the associated dimensional and dynamic load rating requireme
8、nts should also be specified in the acquisition order. TABLE I. Dimensional requirements (ABMA series 02/03/10). Bearing size code Bore diameter (mm) Outside diameter (mm) Width (mm) Chamfer r/min. (mm) Minimum shaft shoulder diameter1(mm) Dynamic load rating, minimum (lbs.) Class 1 (dimension serie
9、s 02) 24 4 13 5 0.2 5.6 219 25 5 16 5 0.3 7 250 26 6 19 6 0.3 8 387 27 7 22 7 0.3 9 731 28 8 24 8 0.3 10 753 29 9 26 8 0.3 13 1020 Class 2 (dimension series 03) 34 4 16 5 0.3 6 250 35 5 19 6 0.3 7 387 Class 4 (dimension series 10) 07 7 19 6 0.3 9 387 08 8 22 7 0.3 10 731 09 9 24 7 0.3 11 753 1Listed
10、 for reference purposes only. Shoulder height shall be determined to provide sufficient clearance for the direct application of bearing removal force against the bearing inner ring. If the required minimum clearance is not available, an alternative non-destructive bearing removal capability shall be
11、 provided. 3.2 Materials. 3.2.1 Rings. The bearing ring material shall be chromium-alloy steel 52100 (UNS G52986) as specified in ASTM International (ASTM) A 295/A 295M, “Standard Specification for High-Carbon Anti-Friction Bearing Steel“. The finished rings shall not exceed the associated billet ma
12、terial inclusion rating which is also specified in ASTM A 295/A 295M. Ring hardness shall be at least 58 HRC as defined in ASTM E 18, “Standard Test Methods for Rockwell Hardness of Metallic Materials“. The grain size of the ring material shall be determined in accordance with ASTM E 112, “Standard
13、Methods for Determining Average Grain Size“. 3.2.2 Balls. The bearing ball material shall be chromium-alloy steel 52100 (UNS G52986) as specified in ASTM A 295/A 295M. The finished balls shall not exceed the associated billet Provided by IHSNot for ResaleNo reproduction or networking permitted witho
14、ut license from IHS-,-,-A-A-59581C 3 material inclusion rating, which is also specified in ASTM A 295/A 295M. Balls shall be through-hardened no less than 60 HRC and no more than 67 HRC as defined in ASTM E 18. The grain size of the ball material shall be determined in accordance with ASTM E 112. 3.
15、2.3 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. Similarly, the material shall not cause any chemical deterioration of any other bearing compon
16、ent. Metallic cage materials shall operate from -40 F to 250 F (-40 C to 121 C). Non-metallic cage materials shall operate from -20 F to 250 F (-30 C to 121 C). Unless otherwise specified in the acquisition order, the cage material shall be one of the optional coded types listed in table II (see 7.3
17、(c). TABLE II. Cage materials. Code1Material type J Pressed steel M Machined bronze or brass P Molded plastic (nylon 6/6 or equal) T Machined non-metallic (phenolic) Y Pressed brass X Other 1No significant changes from FF-B-171/1. 3.2.4 Shields and seals. When used, the shield or seal material shall
18、 be as recommended by the manufacturer, unless otherwise specified in the acquisition order (see 7.3(d). The 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. Similarly, t
19、he material shall not cause any chemical deterioration of any other bearing component. The shield or seal shall remain functionally effective at a minimum temperature range of -20 F to 250 F (-30 C to 121 C) for non-metallic and -40 F to 250 F (-40 C to 121 C) for metallic materials. Unless otherwis
20、e specified in the acquisition order, the shield and seal configuration for the bearing shall be one of the coded options listed in table III (see 7.3(e). TABLE III. Shield and seal configurations. Code1Configuration option A Open B Single shield C Double shield D Single seal E Double seal F Single
21、shield and seal X Other (specify in acquisition order) 1No significant changes from FF-B-171/1. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59581C 4 3.3 Precision tolerance. The bearing precision tolerance level shall conform to Annular Beari
22、ng Engineers Committee (ABEC) class ABEC-1, ABEC-3, ABEC-5, or ABEC-7 as defined in ABMA Standard 20. The tolerance class and associated radial internal clearance shall be one of the coded options listed in table IV (see 7.3(f). 3.3.1 Bearing precision tolerance levels and internal clearances may be
23、 affected by the addition of shields and/or seals. Manufacturers/suppliers should be consulted for availability of desired precision tolerances when shields and/or seals are required. TABLE IV. Precision tolerance requirements. Code Tolerance class Radial internal clearance A Group 2 (less than norm
24、al) B Group N (normal) C Group 3 (greater than normal) D Group 4 (greater than group 3) T ABEC-1 Group 5 (greater than group 4) E Group 2 (less than normal) F Group N (normal) G Group 3 (greater than normal) H Group 4 (greater than group 3) U ABEC-3 Group 5 (greater than group 4) J Group 2 (less tha
25、n normal) K Group N (normal) L Group 3 (greater than normal) M Group 4 (greater than group 3) V ABEC-5 Group 5 (greater than group 4) N Group 2 (less than normal) P Group N (normal) R Group 3 (greater than normal) S Group 4 (greater than group 3) W ABEC-7 Group 5 (greater than group 4) 3.4 Lubricati
26、on and preservation requirements. Unless otherwise specified in the acquisition order, the bearing lubricant or preservative requirement shall be as selected from the approved coded options listed in table V (see 7.3(g). When grease fill is required, the bearing void (the airspace between the inner
27、and outer rings of the assembled bearing) shall be 25 to 50 percent filled. Bearing preservative shall be in accordance with MIL-DTL-197, “Packaging of Bearings, Associated Parts and Subassemblies“. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A
28、-59581C 5 TABLE V. Lubricant and preservative requirements. Code Lubricant or preservative compound B Grease in accordance with MIL-PRF-81322 E Grease in accordance with DOD-G-24508 H Grease in accordance with MIL-PRF-23827 L Grease with SRI-2 or qualified equivalent S No fill T Preservation compoun
29、d in accordance with MIL-DTL-197 X Other (specify in the acquisition order) 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 Regulation
30、 (FAR). 4.2 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 this CID. 5. PRODUCT CONFORMANCE PROVISIONS
31、5.1 Product conformance. The products provided shall meet the salient characteristics of this commercial item description, conform to the producers own drawings, specifications, standards, and quality assurance practices, and be the same product offered for sale in the commercial marketplace. The go
32、vernment reserves the right to require proof of such conformance. 5.2 Market acceptability. The product offered must have been previously sold either to the government or on the commercial market. 6. PACKAGING 6.1 Preservation, packing, and marking. Unless otherwise specified in the acquisition orde
33、r, the bearings supplied shall be preserved, packed, and marked in accordance with MIL-DTL-197 (see 7.3(h). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59581C 7. NOTES 7.1 Part or identification number (PIN). The following PIN procedure is fo
34、r government purposes and does not constitute a requirement for the contractor. AA59581 - 2 34 P C B B Example of reference part number: Lubricant and preservative code (see table V) Precision tolerance code (see table IV) Shield and seal code (see table III) Cage material code (see table II) Bearin
35、g size code (see table I) Class 1 - dimension series 02 Class 2 - dimension series 03 Class 4 - dimension series 10 CID number AA59581 - 2 34 P C B B indicates: boundary dimension series 03; bore diameter 4 mm, outside diameter 16 mm, width 5 mm; molded plastic cage; double shield; ABEC-1 tolerance
36、class, normal radial internal clearance; filled with grease in accordance with MIL-PRF-81322. 7.2 Sources of documents. 7.2.1 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 co
37、pies of ABMA standards may be obtained from http:/www.abma-dc.org/. 7.2.2 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 of ASTM standards may be obtained from http:/www.astm.
38、org/. 7.2.3 FAR and DFARS. Copies of the FAR and DFARS may be obtained from the Superintendent of Documents, P.O. Box 371954, Pittsburgh, PA 15250-7954. Electronic copies of the FAR may be obtained from http:/www.arnet.gov/far/. Electronic copies of the DFARS may be obtained from http:/www.acq.osd.m
39、il/dp/dars/dfars.html. 7.2.4 Military specifications and standards. Copies of military specifications and standards may be obtained from Standardization Documents Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094. Electronic copies of military specifications and standards may
40、be obtained from http:/assist.daps.dla.mil/quicksearch/. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59581C 7 7.3 Ordering data. Acquisition documents should specify the following information: a. CID document number, revision, and CID PIN.
41、b. Bearing size (with dimension/load requirements if size is unlisted) (see 3.1). c. Cage material type (see 3.2.3). d. Shield or seal material (see 3.2.4). e. Shield and seal configuration (see 3.2.4). f. Precision tolerance requirement (see 3.3). g. Lubricant and preservative requirements (see 3.4
42、). h. Preservation, packing, and marking requirements (see 6.1). 7.4 Codes cross-reference. Tables VI, VII, and VIII contain cross-reference data for the PIN information as listed in FF-B-171/1 and this CID. 7.4.1 Bearing class designations. The CIDs replacing 33 of the 37 associated specification s
43、heets of FF-B-171 have been assigned class codes corresponding to ABMA dimension series. Table VI lists the FF-B-171 specification sheets, the corresponding dimension series, the CID class codes, and the replacement CIDs. Provided by IHSNot for ResaleNo reproduction or networking permitted without l
44、icense from IHS-,-,-A-A-59581C 8 TABLE VI. Federal specification to CID cross-reference. FF-B-171 specification sheets ABMA dimension series CID class codes Replacement CID numbers 1 02, 03, 10 1, 2, 4 A-A-59581 2 19 5 A-A-59582 3 10 4 A-A-59583 4 02 1 A-A-59584 5 03 2 A-A-59585 6 04 3 A-A-59586 7 0
45、2 1 A-A-59587 8 03 2 A-A-59589 9 32 8 A-A-59595 10 33 9 A-A-59596 11 02 1 A-A-59597 12 03 2 A-A-59598 13 22 6 A-A-59599 14 23 7 A-A-59600 15 19 - Canceled 16 10 - Canceled 17 02 - Canceled 18 03 - Canceled 19 19 5 A-A-59623 20 10 4 A-A-59624 21 02 1 A-A-59625 22 03 2 A-A-59626 23 04 3 A-A-59627 24 1
46、0 4 A-A-59628 25 02 1 A-A-59629 26 03 2 A-A-59630 27 04 3 A-A-59631 28 10 4 A-A-59632 29 02 1 A-A-59633 30 03 2 A-A-59634 31 04 3 A-A-59635 32 32 8 A-A-59636 33 33 9 A-A-59637 34 32 8 A-A-59638 35 33 9 A-A-59639 36 32 8 A-A-59640 37 33 9 A-A-59641 Provided by IHSNot for ResaleNo reproduction or netw
47、orking permitted without license from IHS-,-,-A-A-59581C 9 TABLE VII. Radial internal clearance and ABEC tolerance codes. FF-B-171/1 codes A-A-59581C codes Code Radial internal clearance Tolerance class Code Tolerance class Radial internal clearance 1 Symbol 2 A Group 2 2 Symbol 0 B Group N 3 Symbol
48、 3 C Group 3 4 Symbol 4 D Group 4 ABEC-1 T ABEC-1 Group 5 E Group 2 F Group N G Group 3 H Group 4 U ABEC-3 Group 5 5 Symbol 2 J Group 2 6 Symbol 0 K Group N 7 Symbol 3 L Group 3 8 Symbol 4 M Group 4 ABEC-5 V ABEC-5 Group 5 N Group 2 P Group N R Group 3 S Group 4 W ABEC-7 Group 5 TABLE VIII. Lubrican
49、t and preservative requirements codes. FF-B-171/1 codes A-A-59581C codes Code Lubricant or preservative Code Lubricant or preservative A Grease IAW MIL-PRF-81322 B Grease IAW MIL-PRF-81322 B Grease IAW DOD-G-24508 E Grease IAW DOD-G-24508 C Grease IAW MIL-PRF-23827 H Grease IAW MIL-PRF-23827 D Grease with
