1、_SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising theref
2、rom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions.Copyright 2013 SAE International All rights reserved. No part of this pub
3、lication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970
4、(outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/AS85560BAEROSPACESTANDARDAS85560 REV. B Issued 2004-11 Revised 2013-01 Superseding A
5、S85560A Bearings, Fiber Reinforced Plastic, Sleeve, Plain and Flanged, Self-Lubricating; General Specification For RATIONALEAS85560B was created in association with the five year document review to update references to the Qualified Products Database, add AMS1424 Deicing/Anti-Icing Fluid to the list
6、 of Fluid Compatibility Test fluids, and correct typographical errors in the text. NOTICEUnder Department of Defense policies and procedures, any qualification material and associated qualified products lists are mandatory for DOD contracts. Any requirement relating to the Qualified Products Databas
7、e (QPD) has not been adopted by SAE and is not part of this SAE technical document. 1. SCOPE 1.1 Scope This specification defines the requirements for fiber reinforced plastic (FRP) composite plain and flanged sleeve bearings that are self-lubricating and which are compatible with graphite-epoxy com
8、posites. 2. APPLICABLE DOCUMENTS The following publications form a part of this document to the extent specified herein. The latest issue of SAE publications shall apply. The applicable issue of other publications shall be the issue in effect on the date of the purchase order. In the event of confli
9、ct between the text of this document and references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. SAE AS85560B Page 2 of 14 2.1 SAE Publications Available from SAE
10、 International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org.AMS1424 Deicing/Anti-Icing Fluid, Aircraft, SAE Type I AS8243 Anti-Icing and Deicing-Defrosting Fluids AS85560/1 Bearing, Fiber Reinforced Plastic,
11、Sleeve, Plain, Self-Lubricating, +250 F AS85560/2 Bearing, Fiber Reinforced Plastic, Sleeve, Flanged, Self-Lubricating, +250 F 2.2 ANSI/ASME Publications Available from American National Standards Institute, 25 West 43rd Street, New York, NY 10036-8002, Tel: 212-642-4900, www.ansi.org.ANSI/ASME B46.
12、1 Surface Texture (Surface Roughness, Waviness and Lay) ANSI/ASME Y14.100 Engineering Drawing Practices ANSI/ASQC Z1 4 Sampling Procedures and Tables for Inspection by Attributes 2.3 U.S. Government Publications Available from the Document Automation and Production Service (DAPS), Building 4/D, 700
13、Robbins Avenue, Philadelphia, PA 19111-5094, Tel: 215-697-6257, http:/assist.daps.dla.mil/quicksearch/.MIL-DTL-197 Packaging of Bearings, Anti-Friction, Associated Parts and Sub-Assemblies MIL-DTL-5624 Turbine Fuel, Aviation, Grades JP-4, JP-5 and JP-5/JP-8ST MIL-HDBK-1599 Bearings, Control System C
14、omponents and Associated Hardware Used in the Design and Construction of Aerospace Mechanical Systems and Subsystems MIL- PRF-5606 Hydraulic Fluid, Petroleum Base; Aircraft; Missile and Ordnance MIL-PRF-7808 Lubricating Oil, Aircraft Turbine Engine, Synthetic Base MIL-PRF-83282 Hydraulic Fluid, Fire
15、 Resistant, Synthetic Hydrocarbon Base, Metric, NATO Code Number H-537 MIL-STD-129 Standard Practice Military Marking for Shipment and Storage MIL-STD-130 Identification Marking of U.S. Military Property MIL-STD-2073-1 DOD Standard Practice for Military Packaging SAE AS85560B Page 3 of 14 3. REQUIRE
16、MENTS 3.1 Aerospace Standard (AS) Sheets The individual item requirements shall be as specified herein and in accordance with the applicable AS sheets. In the event of any conflict between requirements of this specification and the AS sheet, the latter shall govern. 3.2 Qualification The bearings fu
17、rnished under this specification shall be products which are qualified for listing in the Qualified Products Database (QPD) at the time set for opening of bids (see 4.3 and 6.3). 3.2.1 Retention of Qualification To maintain status in the Qualified Products Database, certification shall be submitted
18、to indicate continued compliance with the requirements of this specification (see 4.3.3). 3.2.2 Product Change Any change in product design, description, materials or processing procedures (see 6.4) or plant location shall be reported to the qualifying activity and may require requalification of the
19、 product to the extent determined by the qualifying activity. Any other specific changes, which must be brought to the qualifying activitys attention, shall be identified in the qualification notification letter. 3.2.3 Product Manufacture Except for the winding, bonding and curing operations, the ma
20、nufacturer is permitted to sub-contract manufacturing operations without violating the requirements of 3.2.2. The winding, bonding and curing operations shall be performed in the plant listed in the Qualified Products Database. The manufacturer may subcontract the winding process provided that (1) P
21、rocess Specifications to control the winding process are established by the manufacturer and are imposed upon the subcontractor; and (2) the qualifying activity is notified during the qualification process of the subcontractor performing thewinding process. Manufacture of the self-lubricating liner
22、material may also be subcontracted. Any change in the materials used in the manufacture of the liner will require requalification to an extent determined by the qualifying activity.3.3 Materials Unless otherwise specified in the AS sheet, the materials used in the base composite shall be at the opti
23、on of the bearing manufacturer. The materials shall be compatible with graphite-epoxy composite and meet the requirements of this specification. The materials shall be recorded in the certified test report (see 4.3.2). The self-lubricating portion of the bearing shall be incorporated in the bore of
24、the bearing and, in flanged bearings, at the outer flange face in accordance with the applicable specification sheet. The self-lubricating material shall contain tetrafluoroethylene (TFE) and may be in the form of a liner bonded to a composite substrate or be an integral part of the composite. 3.4 D
25、esign Bearing design shall conform to that shown in specification sheets AS85560/1 and AS85560/2. 3.5 Construction The bearings shall be constructed in accordance with the manufacturers process specifications and quality control documents. The manufacturing specifications shall be recorded by name a
26、nd date in the certified test report (see 4.3.2). Except as otherwise specified on the applicable specification sheet, the details of the construction shall be optional. SAE AS85560B Page 4 of 14 3.5.1 Dimensions and Tolerances Dimensions and tolerances shall be as specified on the applicable AS she
27、et. Dimensions not shown shall be at the option of the manufacturer. 3.5.2 Surface Texture The surface texture shall be in accordance with the applicable AS sheet. Unless otherwise specified, liner surfaces are exempt from surface texture measurements. Bearings shall be free of any surface defects t
28、hat may be detrimental to satisfactory installation, performance, or bearing life. 3.5.3 Lubrication Lubrication with grease or oil shall not be permitted. 3.5.4 Liner Condition and Bond Integrity 3.5.4.1 Visual Examination The visual appearance of the exposed surface of the self-lubricating portion
29、 of the sleeve shall be uniform in texture and shall contain no imbedded contaminants. If a liner is used, it shall be positioned uniformly within the bore and on the flange face and shall be free of folds. 3.5.4.2 Bond Integrity The liner condition shall exhibit a degree of workmanship consistent w
30、ith proper manufacturing process controls (see 4.6.6). The liner edge condition and setback shall meet the applicable drawing requirements. The liner shall be tightly adherent to the substrate over at least 90% of the contact area and shall exhibit a peel strength of 1.5 lb-in minimum. No void shall
31、 be allowed which cannot be fully included within a circumscribing circle with a diameter equal to 25% of the race width or 0.25-in, whichever is smaller. 3.6 Performance 3.6.1 Radial Static Loads 3.6.1.1 Limit Load When the radial static load listed in Table 1 has been applied in accordance with 4.
32、6.1 and 4.6.1.1 the deflection shall not be greater than 0.0100 in. The permanent set after application of the radial static load shall not exceed 0.0030 in for M85560/1 or /2-04 through -22 sizes and shall not exceed 0.0045 in for M85560/1 or /2-24 through -32 sizes. 3.6.1.2 Ultimate Load There sha
33、ll be no crushing of the composite material when 1-1/2 times the radial static limit load listed in Table 1 has been applied at room temperature (see 4.6.1 and 4.6.1.2). TABLE 1 - LOAD VALUES Bearing Size Static Limit Load (lb) DynamicLoad (lb) (0.500 in bore, 0.375 in L) (1.000 in bore, 0.500 in L)
34、 (1.500 in bore, 0.500 in L) 6875 20 000 30 000 3440 10 000 15 000 SAE AS85560B Page 5 of 14 3.6.1.3 Creep Load After 2/3 of the radial static load listed in Table 1 has been applied and held for 336 h at room temperature, the amount of creep (see 6.4) shall be not greater than 0.003-in and there sh
35、all be no crushing of the composite (see 4.6.1 and 4.6.1.3). 3.6.2 Oscillation Under Radial Load When tested under the dynamic load specified in Table 1, the total wear of the bearing shall not be greater than 0.0045-in after 25 000 cycles and there shall be no crushing of the composite portion of t
36、he sleeve. If a bonded liner is used in the bore, there shall be no separation of the liner from the composite substrate. The bond integrity shall be as specified in 3.5.4.2. The measured loaded breakaway torque shall be measured and recorded before and upon completion of the oscillation test (see 4
37、.6.2). 3.6.3 Fluid Compatibility When tested under the dynamic load specified in Table 1, the bearings shall be compatible with the fluids listed in 4.6.3. The total bearing wear shall not be greater than 0.0045-in after 25 000 cycles and there shall be no crushing of the composite portion of the sl
38、eeve. If a bonded liner is used in the bore, there shall be no separation of the liner from the composite substrate. The bond integrity shall be as specified in 3.5.4.2. 3.6.4 High Temperature When tested under the dynamic load specified in Table 1 at +250 F, the total bearing wear shall not be grea
39、ter than 0.0045-in after 25 000 cycles and there shall be no crushing of the composite portion of the sleeve (see 4.6.4). If a bonded liner is used in the bore, there shall be no separation of the liner from the composite substrate. The bond integrity shall be as specified in 3.5.4.2. 3.6.5 Subzero
40、Temperature When tested under the dynamic load specified in Table 1 at -10 F, the total bearing wear shall not be greater than 0.006-in after 25 000 cycles and there shall be no crushing of the composite portion of the bearing (see 4.6.5). If a bonded liner is used in the bore, there shall be no sep
41、aration of the liner from the composite substrate. The bond integrity shall be as specified in 3.5.4.2. 3.7 Interchangeability All parts having the same part marking shall be interchangeable with each other with respect to installation and performance.3.8 Identification of Product Each bearing shall
42、 be permanently and legibly marked in accordance with MIL-STD-130 with the manufacturers CAGE code, manufacturers lot number, and Aerospace Standard part number as a minimum. Any additional marking is optional. Metal impression stamping shall not be allowed. 3.9 Workmanship The bearings shall be fre
43、e of tool marks, chatter waves, grinding scratches, interlayer fracture and other defects that may adversely affect the serviceability of the bearing. SAE AS85560B Page 6 of 14 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection Unless otherwise specified in the contract or purchase or
44、der, the supplier is responsible for the performance of all inspection requirements (examinations and tests) as specified herein. The supplier may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the qualifying ac
45、tivity. The qualifying activity reserves the right to perform any of the inspections set forth in this standard where such inspections are deemed necessary to ensure product and/or services conform to prescribed requirements. 4.1.1 Qualification Test Records The manufacturer shall maintain a record
46、showing quantitative results for all tests required by this specification. The record shall be available to the purchaser and shall be signed by an authorized representative of the manufacturer or the testing laboratory, as applicable. 4.2 Classification of Inspections The inspection requirements sp
47、ecified herein are classified as: 1. Qualification inspection (see 4.3). 2. Quality conformance inspection (see 4.4). 4.3 Qualification Inspection Qualification inspection shall be as specified in Table 2. 4.3.1 Sampling Instructions Qualification inspection samples shall consist of 35 bearings with
48、 1.000-in bore, 0.500-in length and 15 bearings of each of the additional bore diameters and widths specified below for which qualification is desired. Bearings necessary for tests specified herein shall be furnished by the manufacturer. Samples shall be identified as required (see 3.8) and forwarde
49、d to the activity designated in the letter of authorization (see 6.3 and 6.3.1). Because of the preponderance of tests performed on the 1.000-in bore, 0.500-in length bearing, this size must be approved before any other sizes may be approved.Approval of bearings with 0.500-in bore, 0.375-in length will qualify bearings on AS85560/1 and AS85560/2 with dash numbers 04 to 09, inclusive. Approval of bearings with 1.000-in bore, 0.500-in len
