[INCH-POUND]
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-13506C, which is canceled.
1. Abstract. 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 (see 2.2). Not covered by this CID are sleeve bearings for marine, diesel, and aircraft engine application.
2. Salient characteristics.
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 are met (see 5.4).
2.1.1 Backs. The sleeve bearing backs shall be made of steel conforming to ASTM A109.
2.1.2 Liners. The sleeve bearing liners shall be manufactured from oil impregnated, sintered metal powder conforming to ASTM S328 or from SAB J460 bearing alloys listed below:
|
Bearing alloy |
Chemical compositions number |
|
Tin base |
12 |
|
Lead base (babbits) |
13, 14, 15 |
|
Lead tin-overlay |
19, 190 |
|
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 SAB J460, composition number 19 or 190. The overlay shall be applied to the bearing surface of the liner and shall have a nominal thickness of 0.001 inch or less.
|
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 Tank-Automotive command, ATTN: AMSTA-GDS, Warren, MI 48397-5000. |
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.
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