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-59641B 11 March 2011 SUPERSEDING A-A-59641A 18 January 2007 COMMERCIAL ITEM DESCRIPTION BEARING, BALL, ANNULAR, DOUBLE ROW, ANGULAR CONTACT, FILLING SLOT, VERTEX O
3、F 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 genera
4、l-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 snap ring configurations, precision tolerances, and lubricant and prese
5、rvative requirements listed below: Class 9 - dimension series 33 Size - bearing dimensions (see table I) Cage materials (see table II) Shield and snap ring configurations (see table III) Precision tolerances (see table IV) Lubricant and preservative requirements (see table V) 3. SALIENT CHARACTERIST
6、ICS 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 ABMA Standard 20, “Radial Bearings of Ball,
7、 Cylindrical Roller, and Spherical Roller Types, Metric Design“. The bearing Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59641B 2 size shall be as specified in the acquisition order (see 7.3(b). For unlisted bearing sizes, the dimensional and
8、 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 diameter 1(mm) Dynamic load rating (minimum)(lb.) 0
9、0 10 35 19.0 0.6 15 2110 01 12 37 19.0 1.0 18 2320 02 15 42 19.0 1.0 21 2660 03 17 47 22.2 1.0 23 3740 04 20 52 22.2 1.1 27 4740 05 25 62 25.4 1.1 32 6415 06 30 72 30.2 1.1 37 8310 07 35 80 34.9 1.5 44 10405 08 40 90 36.5 1.5 49 12725 09 45 100 39.7 1.5 54 14260 10 50 110 44.4 2.0 60 19035 11 55 120
10、 49.2 2.0 65 22115 12 60 130 54.0 2.1 72 27080 13 65 140 58.7 2.1 77 28900 14 70 150 63.5 2.1 82 34465 15 75 160 68.3 2.1 87 37525 16 80 170 68.3 2.1 92 42890 17 85 180 73.0 3.0 99 46275 18 90 190 73.0 3.0 104 49725 19 95 200 77.8 3.0 109 53250 20 100 215 82.6 3.0 114 56870 21 105 225 87.3 3.0 119 6
11、0525 22 110 240 92.1 3.0 124 64265 24 120 260 106.0 3.0 134 71135 28 140 300 118.0 4.0 148 83275 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 require
12、d minimum clearance is not available, an alternative non-destructive bearing removal capability shall be provided. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59641B 3 3.2 Materials. 3.2.1 Rings. The bearing ring material shall be chromium-al
13、loy steel 52100 (UNS G52986) as specified in ASTM A295/A295M, “Standard Specification for High-Carbon Anti-Friction Bearing Steel“. The finished rings shall not exceed the associated billet material inclusion rating that is also specified in ASTM A295/A295M. Ring hardness shall be at least 58 HRC as
14、 defined in ASTM E18, “Standard Test Methods for Rockwell Hardness and Rockwell Superficial Hardness 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 mate
15、rial shall be chromium-alloy steel 52100 (UNS G52986) as specified in ASTM A295/A295M. The finished 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 defin
16、ed in ASTM E18. The grain size of the ball material shall be determined in accordance with ASTM 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
17、 storage. Similarly, the material shall not cause any chemical deterioration of any other bearing 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 acquisiti
18、on order, the cage material shall be one of the optional coded types listed in table II (see 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 a
19、cquisition order) 1No significant change from FF-B-171/37. 3.2.4 Shields. When used, the shield 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, s
20、olvent, 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 component. The shield shall remain functionally effective at a minimum temperature range of -20 to 250 F (-30 to 1
21、21 C) for non-metallic and -40 to 250 F (-40 to 121 C) for metallic materials. Unless otherwise specified in the acquisition order, the shield 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 o
22、r networking permitted without license from IHS-,-,-A-A-59641B 4 TABLE III. Shield and snap ring configurations. Code 1Configuration options A Open B Single shield (opposite filling slot side) C Single shield (on filling slot side) D Double shield E Open with snap ring (on filling slot side) F Open
23、with snap ring (opposite filling slot side) G Single shield opposite filling slot side (snap ring on filling slot side) H Single shield and snap ring opposite filling slot side J Single shield and snap ring on filling slot side K Single shield on filling slot side (snap ring opposite filling slot si
24、de) L Double shield (snap ring on filling slot side) M Double shield (snap ring opposite filling slot side) X Other (specify in acquisition order) 1No significant change from FF-B-171/37. 3.2.5 Snap ring. When used, the bearing snap ring and associated snap ring groove shall conform to the requireme
25、nts specified in ABMA Standard 20. 3.3 Precision tolerance. The bearing precision tolerance level shall conform to Annular Bearing 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
26、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-59641B 5 TABLE IV. Precision tolerance requirements. Code Tolerance class Radial internal clearance A ABEC-1 Group 2 (less than normal) B Gro
27、up 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 (normal) 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)
28、 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 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 toler
29、ance levels and internal clearances may be affected by the addition of shields. Manufacturers/suppliers should be consulted for availability of desired precision tolerances when shields are required. 3.4 Lubrication and preservation requirements. Unless otherwise specified in the acquisition order,
30、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 and outer rings of the assembled bearing) shall be 25 to 50 percent filled. Bearing pre
31、servative 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-59641B 6 TABLE V. Lubricant and preservative requirements. Code Lubricant or preservat
32、ive compound B Grease in accordance with MIL-PRF-81322 E Grease in accordance with DOD-G-24508H Grease in accordance with MIL-PRF-23827L 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
33、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 (FAR). 4.2 Foreign acquisition restrictions. Unless otherwise indicated in the solicitati
34、on 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 5.1 Product conformance. The products provided shall mee
35、t the salient characteristics of this CID, 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 government reserves the right to require proof of such conformance. 5.2 Market acc
36、eptability. The products 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 order, the bearings supplied shall be preserved, packed, and marked in accordance w
37、ith MIL-DTL-197 (see 7.3(h). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59641B 7 7. NOTES 7.1 Part or identification number (PIN). The following PIN procedure is for government purposes and does not constitute a requirement for the contracto
38、r. AA59641 - 9 04 J A B E Example of reference part number: Lubricant and preservative code (see table V) Precision tolerance code (see table IV) Shield 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 AA596
39、41 - 9 04 J A B E indicates: boundary dimension series 33; bore diameter 20 mm, outside diameter 52 mm, width 22.2 mm; pressed steel cage; open (no shields); 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 D
40、FARS 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/current/index.html. Electronic copies of FAR may be obtained from https:/ww
41、w.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 copies may be obtained from https:/assist.daps.dla.mil/. 7.2.3 ABMA standards.
42、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/. 7.2.4 ASTM standards. Copies of ASTM standards may be obtained from ASTM International, 100
43、Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959. Electronic copies may be obtained from http:/www.astm.org/. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59641B 8 7.3 Ordering data. The acquisition order should specify the f
44、ollowing 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 material (see 3.2.4). e. Shield and snap ring configuration (see 3.2.4). f. Precision tolerance requirem
45、ents (see 3.3). g. Lubricant and preservative requirement (see 3.4). 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-171/37 and this CID. 7.4.1 Bearing class desig
46、nations. The CIDs replacing 33 of the 37 associated specification sheets 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
47、 IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59641B 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
48、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-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-59
49、624 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-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 Resa
