A-A-52401 Bearing, Sleeve (Steel-Backed)This commercial item description (CID) covers requirements for sleeve bearings constructed of low-friction metal bonded to a steel back. The sleeve bearings are used to support rotating shafts or journals and come in several types and styles. Not covered by this CID are sleeve bearings for marine, diesel, and aircraft engine applications.

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A-A-52401

2.2 Design and construction. 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 assembly.

2.3 Performance.

2.3.1 Bonding. Backs and liners shall be bonded by either a chemical or metallurgical bond. A 180° section of the bearing shall be used for the 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 separated from the back by chiseling at’ the bond liner at right angle to the lands. Reparation 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 following information shall be included, as minimum:

(1) Manufacturer Identification Code (CAGE).

(2) Contract number.

(3) Part number (IAW sleeve bearing drawing).

2.5 Workmanship. Workmanship 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 is responsible for the performance of 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 contractor’s own drawings, specifications, 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 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. Notes.

5.1 Address for obtaining copies of referenced documents.

5.1.1 Government specifications 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.