1、Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any data that may improve this document should be sent to: STDZNMGTdla.mil or Defense Logistics Agency Aviation VEB, 8000 Jefferson Davis Highway, Richmond, VA 23297-5616. Since contact information can change, you m
2、ay want to verify the currency of this address information using the ASSIST database at https:/assist.daps.dla.mil/. FSC 3110 METRIC A-A-59637B 9 March 2011 SUPERSEDING A-A-59637A 26 March 2008 COMMERCIAL ITEM DESCRIPTION BEARING, BALL, ANNULAR, DOUBLE ROW, ANGULAR CONTACT, NON-FILLING SLOT, VERTEX
3、OF CONTACT ANGLES OUTSIDE BEARING, DIMENSION SERIES 33 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 metric, double row, angular contact, annular ball bearings for gener
4、al-purpose use. These bearings are 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 preservat
5、ive requirements listed below: Class 9 - dimension series 33 Size - bearing dimensions (see table I) Cage materials (see table II) Shield, seal, and snap ring configurations (see table III) Precision tolerances (see table IV) Lubricant and preservative requirements (see table V) 3. SALIENT CHARACTER
6、ISTICS 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 33 in American Bearing Provided by IHSNot for
7、ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59637B 2 Manufacturers 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).
8、 For unlisted bearing sizes, the dimensional and dynamic load rating requirements should also be specified in the acquisition order. TABLE I. Dimensional requirements (ABMA series 33). Bearing size code Bore diameter (mm) Outside diameter (mm) Width (mm) Chamfer r/min (mm) Minimum shaft shoulder dia
9、meter 1(mm) Dynamic load rating (minimum)(lb.) 00 10 35 19.0 0.6 15 1,730 01 12 37 19.0 1.0 18 1,960 02 15 42 19.0 1.0 21 2,170 03 17 47 22.2 1.0 23 3,220 04 20 52 22.2 1.1 27 3,725 05 25 62 25.4 1.1 32 5,040 06 30 72 30.2 1.1 37 6,910 07 35 80 34.9 1.5 43.5 8,170 08 40 90 36.5 1.5 48.5 9,985 09 45
10、100 39.7 1.5 53.5 11,960 10 50 110 44.4 2.0 60 14,090 11 55 120 49.2 2.0 65 17,550 12 60 130 54.0 2.1 72 20,060 13 65 140 58.7 2.1 77 22,720 14 70 150 63.5 2.1 82 25,525 15 75 160 68.3 2.1 87 27,790 16 80 170 68.3 2.1 92 30,105 17 85 180 73.0 3.0 99 32,475 18 90 190 73.0 3.0 104 34,895 19 95 200 77.
11、8 3.0 109 38,600 1Listed 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 rem
12、oval capability shall be 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) A295/A295M, “Standard Specification for High-Carbon Anti-Friction Bearing Steel“. The finished rings shall not exceed th
13、e associated billet material inclusion rating that is also specified in ASTM A295/A295M. Ring hardness shall be at Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59637B 3 least 58 HRC as defined in ASTM E18, “Standard Test Methods for Rockwell H
14、ardness of Metallic Materials“. The grain size of the ring material shall be determined in accordance with ASTM E112, “Standard 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 A295/A295M. The fi
15、nished balls shall not exceed the associated billet material inclusion rating, which is also specified in ASTM A295/A295M. Balls shall be through-hardened no less than 60 HRC and no more than 67 HRC as defined in ASTM E18. The grain size of the ball material shall be determined in accordance with AS
16、TM E112. 3.2.3 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 bea
17、ring component. Metallic cage materials shall operate from -40 to 250 F (-40 to 121 C). Non-metallic cage materials shall operate from -20 to 250 F (-30 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
18、7.3(c). TABLE II. Cage materials. Code 1Material 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 (specify in acquisition order) 1No significant change from FF-B-171/33. 3.2.4 Shields, seals, and snap rin
19、gs. When used, the shield and seal material shall 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 b
20、earing during normal use or storage. Similarly, the 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 to 250 F (-30 to 121 C) for non-metallic and -40 to 250 F (-40 to 121 C
21、) for metallic materials. Unless otherwise specified in the acquisition order, the shield, seal, and snap ring configuration for the bearing shall be one of the coded options listed in table III (see 7.3(e). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IH
22、S-,-,-A-A-59637B 4 TABLE III. Shield, seal, and snap ring configurations. Code 1Configuration options A Open (no shields or seals) B Single shield C Double shield D Single seal E Double seal F Single shield and seal G Open with snap ring H Single shield on snap ring side J Single shield opposite sna
23、p ring side K Double shield with snap ring L Single seal on snap ring side M Single seal opposite snap ring side N Double seal with snap ring P Single shield and seal, shield on snap ring side R Single shield and seal, seal on snap on ring side X Other (specify in acquisition order) 1No significant
24、change from FF-B-171/33. 3.2.5 Snap rings. When used, the bearing snap ring and associated snap ring groove shall conform to the requirements specified in ABMA Standard 20. 3.3 Precision tolerance. The bearing precision tolerance level shall conform to Annular Bearing Engineers Committee (ABEC) clas
25、s 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). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-596
26、37B 5 TABLE IV. Precision tolerance requirements. Code Tolerance class Radial internal clearance A ABEC-1 Group 2 (less than normal) B Group N (normal) C Group 3 (greater than normal) D Group 4 (greater than group 3) T Group 5 (greater than group 4) E ABEC-3 Group 2 (less than normal) F Group N (nor
27、mal) G Group 3 (greater than normal) H Group 4 (greater than group 3) U Group 5 (greater than group 4) J ABEC-5 Group 2 (less than normal) K Group N (normal) L Group 3 (greater than normal) M Group 4 (greater than group 3) V Group 5 (greater than group 4) N ABEC-7 Group 2 (less than normal) P Group
28、N (normal) R Group 3 (greater than normal) S Group 4 (greater than group 3) W Group 5 (greater than group 4) 3.3.1 Bearing precision tolerance levels and internal clearances may be affected by the addition of shields and/or seals. Manufacturers/suppliers should be consulted for availability of desir
29、ed precision tolerances when shields and/or seals are required. 3.4 Lubrication 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). Wh
30、en grease fill is required, the bearing void (the airspace between the inner 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 R
31、esaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59637B 6 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-24508H Grease in accordance with MIL-PRF-23827L
32、 Grease with SRI-2 or qualified equivalent S No fill T Preservation compound in accordance with MIL-DTL-197X 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,
33、 in accordance with paragraph 23.403 of the Federal Acquisition Regulation (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 Acquisiti
34、on Regulation Supplement (DFARS) apply to products described by this CID. 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, specifications, standards, and quality assurance pract
35、ices, 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 on the commercial market. 6. PACKAGING 6.1 P
36、reservation, packing, and marking. Unless otherwise specified in the acquisition order, the bearings supplied shall be preserved, packed, and marked in accordance with MIL-DTL-197 (see 7.3(h). 7. NOTES 7.1 Part or identification number (PIN). The following PIN procedure is for government purposes an
37、d does not constitute a requirement for the contractor. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59637B 7 AA59637 - 9 04 J A B E Example of reference part number: Lubricant and preservative code (see table V) Precision tolerance code (see
38、table IV) Shield, seal, and snap ring code (see table III) Cage material code (see table II) Bearing size code (see table I) Class 9 - dimension series 33 CID number AA59637 - 9 04 J A B E indicates: boundary dimension series 33; bore diameter 20 mm, outside diameter 52 mm, width 22.2 mm; pressed st
39、eel cage; open (no shields, seals or snap ring); ABEC-1 tolerance class, normal radial internal clearance; filled with grease in accordance with DOD-G-24508. 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,
40、Pittsburgh, PA 15250-7954. Electronic copies of DFARS may be obtained from http:/www.acq.osd.mil/dpap/dars/dfarspgi/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
41、 Standardization Documents Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094. Electronic copies 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 N
42、W, Suite 800, Washington, DC 20036. Electronic copies may be obtained from http:/www.abma-dc.org/. 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 ht
43、tp:/www.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. Cage material type (see 3.2.3). d. Shield and seal material (see 3
44、.2.4). e. Shield, seal, and snap ring configuration (see 3.2.4). f. Precision tolerance requirements (see 3.3). g. Lubricant and preservative requirement (see 3.4). h. Preservation, packing, and marking requirements (see 6.1). Provided by IHSNot for ResaleNo reproduction or networking permitted with
45、out license from IHS-,-,-A-A-59637B 8 7.4 Codes cross-reference. Tables VI, VII, and VIII contain cross-reference data for the PIN information as listed in FF-B-171/33 and this CID. 7.4.1 Bearing class designations. The CIDs replacing 33 of the 37 associated specification sheets of FF-B-171 have bee
46、n 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 license from IHS-,-,-A-A-59
47、637B 9 TABLE VI. Federal specification to CID cross-reference. FF-B-171 specification sheets ABMA dimension series CID classcodes 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 02 1 A-A-59587 8 03 2 A-A-59
48、589 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-59637 21 02 1 A-A-59625 22 03 2 A-A-59626 23 04 3 A-A-59627 24 10 4 A-A-59628 25 02 1 A-A-5
49、9629 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 networking permitted without license from IHS-,-,
