ARMY A-A-52401-1992 BEARING SLEEVE (STEEL-BACKED)《套筒(钢背)轴承》.pdf

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1、A-A-52401 July 10 1992 COMMERCIAL ITEM DESCRIPTION BEARING, SLEEVE (STEEL-BACKED) The General Services Administration has authorized the use of this commercial item description as a replacement for MIL-B-l3506C, which is canceled. 1. Abstract. This commercial item description (CID) covers requiremen

2、ts for sleeve bearings constructed of low-friction metal bonded to a steel back. sleeve bearings are used to support rotating shafts or journals and come in several types and styles (see 2.2). for marine, diesel, and aircraft engine applications. 2. Salient characteristics. The Not covered by this C

3、ID are sleeve bearings 2.1 Materials. Unless otherwise specified in the applicable drawings sleeve bearings shall be manufactured of material as specified herein. The use of recovered material made in compliance with regulatory requirements is acceptable providing that all requirements of this CID a

4、re met (see 5.4). 2.1.1 Backs. The sleeve bearing backs shall be made of steel conforming to 2.1.2 Liners. The sleeve bearing liners shall be manufactured from oil ASTM A109. impregnated, sintered metal powder conforming to ASTM B328 or from SAE J460 bearing alloys listed below: Bearing alloy Chemic

5、al compositions number Tin base 12 Lead base (babbits) 13, 14, 15 Copper lead 48, 480, 49 Aluminum 770 Copper base 792 or 797, 793 or 798, 794 or 799 2.1.3 Overlay. When required, the overlay material shall be a lead-tin alloy conforming to SAE 5460, composition number 19 or 190. The overlay shall b

6、e applied to the bearing surface of the liner and shall have a nominal thickness of 0.001 inch or less. Lead tin-overlay 19, 190 Beneficial comments, recommendations, additions, deletions clarifications, etc. and any other data which may improve this document should be sent by letter to: U.S. Army T

7、ank-Automotive Command, ATTN: AMSTA-GDS, Warren, MI 48397-5000. FSC 3120 AMSC N/A DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-52401 A-A-52 40 1 2.2 Design and c

8、onstruction. The sleeve bearing shall be designed and constructed in accordance with the applicable drawing (see 5.2) and shall conform to a type and style as shown in figures 1 and 2. When specified (see 5.2), the sleeve bearing bores shall be furnished undersized to permit finish machining at as a

9、 emb 1 y. 2.3 Perf ormance. 2.3.1 Bonding. metallurgical bond. adhesion test. The bearing liner shall be scored the depth of the liner metal to leave 1/4-inch lands parallel to the axis of the bore. The liner metal shall be separatea from tne back by chiseiing at the bon6 iirie ai riyiit angie to th

10、e lands. Separation of any one of the lands as a unit or any flaking of the liner from the steel back shall be cause for rejection. 2.4 Identification and marking. Unless otherwise specified in the drawing, identification and marking shall be permanent and legible in accordance with MIL-STD-130. The

11、 following information shall be included, as minimum: Backs and liners shall be bonded by either a chemical or A 180 section of the bearing shall be used for the (1) Manufacturer Identification Code (CAGE). (2) Contract number. (3) Part number (IAW sleeve bearing drawing). 2.5 Workmanship. Workmansh

12、ip shall be in accordance with the manufacture of a high quality bearing. This shall be evidenced by the absence of defects detrimental to its life, serviceability, and appearance. 3. Quality assurance provisions. 3.1 Responsibility for inspection. The contractor io responsible for the performance o

13、f all inspections (examinations and tests). 3.2 Contractor certification. The contractor shall certify and maintain substantiating evidence that the product offered meets the salient characteristics of this commercial item description and that the product conforms to the contrators own drawings, spe

14、cifications, standards, and quality assurance practices. Items with known defects shall not be submitted for Government acceptance. The Government reserves the right to require proof of such conformance prior to the first delivery and thereafter as may be otherwise provided for under the provisions

15、of the contract. 4. Preservation, packaging, packing, labeling, and marking. Preservation, packaging, packing, labeling, and marking for the desired level shall be as specified in the contract (see 5.2). 5. Notee. 5.1 Address for obtaining copies of referenced documents. 5.1.1 Government specificati

16、ons and Standards. Copies of federal and military specifications and standards are available from the Navy Publications and Printing Service Office, Standardization Documents Order Desk, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094. 2 Provided by IHSNot for ResaleNo reproduction or netw

17、orking permitted without license from IHS-,-,-a A-A- 52 40 1 ype II - One piece Type I - Plain full cylinder bearing with split bearing with either a seam-weld, longitudinal eplit butt joint, or clinch along full length. Type III - split bearing with two 180O mating parts. point. FIGURE 1. Style A -

18、 Straight-wall bearinq. FIGURE 2. Bearing types. I Style B - Flanged bearing. Bearing styles. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-52401 7799974 0082270 37b D A- A- 5 2 40 1 5.1.2 Non-Government publications. ASTM A109 “Standard Spec

19、ification for Steel, Strip, Carbon, Cold-Rolled“ and ASTM B328 “Standard Test Method for Density and Interconnected Porosity of Sintered Powder Metal Structural Parts and Oil-Impregnated Bearings“ are available from the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 1

20、9103. SAE 5460 “Bearings and Bushing Alloys“ and SAE J506 “Sleeve Type Half Bearings“ are available from the Society of Automotive Engineers Inc., 400 Commonwealth Drive, Warrendale, PA 15096. 5.2 Ordering data. Acquisition documents must specify the following: a. Title, number and date of this comm

21、ercial item description. b. Type, style, and part number of sleeve bearing (see 2.2 and 2.4). c. Sleeve bearing drawing number, revision letter, and date (see 2.2). d. Undersize bore dimensions (see 2.2). e. Issue of the DODISS and industry standards to be cited in the f. Selection of applicable lev

22、el and packaging requirements (see 4). this CID are interchangeable/substitutable with sleeve bearings conforming to solicitation. 5.3 Supersession and cross-reference data. Sleeve bearings conforming to MIL-B-13506. 5.4 Regulatory requirements. The offeror/contractor is encouraged to use recovered

23、materials in accordance with Public Law 94-580 to the maximum extent practicable. considered on the following basis: 5.5 Metric product. Sleeve bearings that are to metric dimensions will be a. Products manufactured to metric dimensions will be considered on an equal basis with those manufactured us

24、ing inch-pound units, provided they fall within specified tolerances using conversion tables contained in the latest revision of Federal Standard No. 376, and all other requirements of this CID are met. b. If a product is manufactured to metric dimensions and those dimensions exceed the tolerances s

25、pecified in the inch-pound units, a request should be made to the contracting officer to determine if the product is acceptable. product. c. The contracting officer has the option of accepting or rejecting the Custodians: Army - AT Navy - os Air Force - 99 Review activities : Navy - MC, SH Air Force - 84 DLA - IS User activity: Army - MI 4 Preparing activity: Army - AT (Project 3120-0720-01) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-