DLA A-A-59600 C-2009 BEARING BALL ANNULAR DOUBLE ROW RADIAL INTERNAL SELF-ALIGNING DIMENSION SERIES 23.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 Supply Center Richmond (DSCR), ATTN: DSCR-VEB, 8000 Jefferson Davis Highway, Richmond, VA 23297-5616. FSC 3110 METRIC A-A-59600C
2、6 April 2009 SUPERSEDING A-A-59600B 27 May 2004 COMMERCIAL ITEM DESCRIPTION BEARING, BALL, ANNULAR, DOUBLE ROW, RADIAL, INTERNAL SELF-ALIGNING, DIMENSION SERIES 23 The General Services Administration has authorized the use of this commercial item description for all federal agencies. 1. SCOPE. This
3、commercial item description (CID) covers metric, double row, radial, internal self-aligning, annular ball bearings for general-purpose use. These bearings are not intended for use in critical aeronautical or critical special precision applications. 2. CLASSIFICATION. The ball bearings shall be class
4、ified by the class, sizes, cage materials, bore designs, precision tolerances, and lubricant and preservative requirements listed below: Class 7 - dimension series 23 Sizes - bearing dimensions (see Table I) Cage materials (see Table II) Bore designs (see Table III) Precision tolerances (see Table I
5、V) Lubricant and preservative requirements (see Table V) 3. SALIENT CHARACTERISTICS 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 beari
6、ng sizes from dimension series 23 in the American Bearing 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 Provided by IHSNot for ResaleNo reproduction or networking p
7、ermitted without license from IHS-,-,-A-A-59600C acquisition order (see 7.3(b). 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 23). Bearing size code Bore diameter (mm)
8、 Outside diameter (mm) Width (mm) Chamfer r/min. (mm) Minimum shaft shoulder diameter1 (mm) Dynamic load rating (minimum) (lbs.) 00 10 35 17 0.6 15 1,750 01 12 37 17 1.0 18 1,985 02 15 42 17 1.0 21 2,060 03 17 47 19 1.0 23 2,500 04 20 52 21 1.1 27 3,085 05 25 62 24 1.1 32 4,135 06 30 72 27 1.1 37 5,
9、300 07 35 80 31 1.5 43.5 6,635 08 40 90 33 1.5 48.5 7,590 09 45 100 36 1.5 53.5 9,280 10 50 110 40 2.0 60 11,070 11 55 120 43 2.0 65 12,780 12 60 130 46 2.1 72 14,865 13 65 140 48 2.1 77 16,058 14 70 150 51 2.1 82 17,625 15 75 160 55 2.1 87 19,380 16 80 170 58 2.1 92 21,910 17 85 180 60 3.0 99 23,66
10、5 18 90 190 64 3.0 104 25,420 19 95 200 67 3.0 109 27,920 20 100 215 73 3.0 114 31,140 21 105 225 77 3.0 119 32,995 22 110 240 80 3.0 124 35,055 1Listed for reference purposes only. Shoulder height shall be determined to provide sufficient clearance for the direct application of bearing removal forc
11、e against the bearing inner ring. If the required minimum clearance is not available, an alternative non-destructive bearing removal capability shall be provided. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59600C 3.2 Materials. 3.2.1 Rings
12、. 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 material inclusion rating also specifie
13、d 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 Methods for Determining Average Grain Size“. 3
14、.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 material inclusion rating, which is also specified in ASTM A 295/A 295M. Balls shall be through-hardened no less than 60
15、 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. 3.2.3 Cages. The bearing cage material shall be impervious to deterioration from any lubricant, preservative, solvent, or other chemical substance expected to
16、contact the bearing during normal use or storage. Similarly, the material shall not cause any chemical deterioration of any other bearing component. Metallic cage materials shall operate -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).
17、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(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 (pheno
18、lic) Y Pressed brass X Other (specify in acquisition order) 1No significant changes from FF-B-171/14. 3.3 Bore design. All self-aligning bearings shall have either a cylindrical or tapered bores (taper 1:12) and shall be identified by one of the codes listed in Table III. The bore design shall be sp
19、ecified in the acquisition order (see 7.3(d). Table III. Bore designs. 1No significant changes from FF-B-171/14. Code1Configuration option C Cylindrical bore (no shields or seals) T Tapered bore (no shields or seals) 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without lice
20、nse from IHS-,-,-A-A-59600C 3.4 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 one of
21、the coded options listed in Table IV (see 7.3(e). 3.4.1 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 desired precision tolerances when shields and/or seals are requi
22、red. Table IV. Precision tolerance requirements. Code Tolerance class Radial internal clearance A Group 2 (less than normal) 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 G
23、roup 3 (greater than normal) H Group 4 (greater than group 3) U ABEC-3 Group 5 (greater than group 4) J Group 2 (less than 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 (norma
24、l) R Group 3 (greater than normal) S Group 4 (greater than group 3) W ABEC-7 Group 5 (greater than group 4) 3.5 Lubrication and preservation requirements. Unless otherwise specified in the acquisition order, the bearing lubricant or preservative requirement shall be as selected from the approved cod
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