DLA A-A-59637 B-2011 BEARING BALL ANNULAR DOUBLE ROW ANGULAR CONTACT NON-FILLING SLOT VERTEX OF CONTACT ANGLES OUTSIDE BEARING DIMENSION SERIES 33.pdf
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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
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