ISO-3547-4-2006.pdf

Reference number ISO 3547-4:2006(E) © ISO 2006 INTERNATIONAL STANDARD ISO 3547-4 Second edition 2006-10-15 Plain bearings Wrapped bushes Part 4: Materials Paliers lisses Bagues roulées Partie 4: Matériaux ISO 3547-4:2006(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. © ISO 2006 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii © ISO 2006 All rights reserved -,-,- ISO 3547-4:2006(E) © ISO 2006 All rights reserved iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 3547-4 was prepared by Technical Committee ISO/TC 123, Plain bearings, Subcommittee SC 3, Dimensions, tolerances and construction details. This second edition cancels and replaces the first edition (ISO 3547-4:1999), which has been technically revised. ISO 3547 consists of the following parts, under the general title Plain bearings Wrapped bushes: Part 1: Dimensions Part 2: Test data for outside and inside diameters Part 3: Lubrication holes, grooves and indentations Part 4: Materials The following parts are under preparation: Part 5: Checking the outside diameter Part 6: Checking the inside diameter Part 7: Measurement of wall thickness of thin-walled half-bearings and thin-walled bushes -,-,- INTERNATIONAL STANDARD ISO 3547-4:2006(E) © ISO 2006 All rights reserved 1 Plain bearings Wrapped bushes Part 4: Materials 1 Scope This part of ISO 3547 gives specifications for solid and multi-layer bearing materials, such as are used for wrapped bushes in accordance with the other parts of ISO 3547. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3547-1:2006, Plain bearings Wrapped bushes Part 1: Dimensions ISO 3547-2, Plain bearings Wrapped bushes Part 2: Test data for outside and inside diameters ISO 3547-3, Plain bearings Wrapped bushes Part 3: Lubrication holes, grooves and indentations ISO 4378-1, Plain bearings Terms, definitions and classification Part 1: Design, bearing materials and their properties ISO 4382-2, Plain bearings Copper alloys Part 2: Wrought copper alloys for solid plain bearings ISO 4383, Plain bearings Multilayer materials for thin-walled plain bearings ISO 4384-1, Plain bearings Hardness testing of bearing metals Part 1: Compound materials ISO 4384-2, Plain bearings Hardness testing of bearing metals Part 2: Solid materials 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 4378-1 apply. 4 Requirements 4.1 Chemical analysis Chemical analysis shall be definitive for the acceptance of the bearing metals. Arbitrary analyses or random sampling operations shall be performed in accordance with recognized methods and agreed between the supplier and user. -,-,- ISO 3547-4:2006(E) 2 © ISO 2006 All rights reserved 4.2 Hardness values The hardness values indicated in Tables 1 and 2 are typical for each of the materials concerned. In practice, composition and processing variables can result in significant variations in hardness. Hardness specifications shall be agreed between the supplier and user. Table 1 Solid materials Key Designationa Hardnessb (guide values) HB 2,5/62,5/10 Notes relating to use Wall thickness limit deviation seriesc Z1 Steel (hardened) Suitable for secondary applications with lightly loaded sliding characteristics. A Y1 120 Y2 CuSn8P 150 Very high load capacity, good antifrictional property, e.g. for vehicles, transmissions, conveyor systems and agricultural machinery. W1 110 W2 CuZn31Si 140 High load capacity, good antifrictional properties, e.g. for textile machinery, motor vehicles and agricultural machinery and lifts. A, C, W a Steel composition shall be agreed between supplier and user. It will normally have a carbon content of less than 0,25 %; composition of bearing material in accordance with ISO 4382-2. b Hardness testing in accordance with ISO 4384-2. c In accordance with ISO 3547-1:2006, Tables 5 and 6. -,-,- ISO 3547-4:2006(E) © ISO 2006 All rights reserved 3 Table 2 Multi-layer materials Designationa Hardnessb (guide values) Key Backing material Bearing material Backing materialc Bearing material Notes relating to use d T2 Steel SnSb8Cu4 130 17 HV to 24 HV Very good emergency running characteristics, fair load capacity, e.g. for pumps, compressors, automatic transmissions, starters and camshafts. S1 Steel CuPb24Sn (cast) 125 55 HB to 80 HB S2 Steel CuPb24Sn (sinter) 125 40 HB to 60 HB High load capacity, with hardened shafts being necessary as a rule, e.g. for automatic transmissions, steering assemblies, camshafts and pumps. S3 Steel CuPb24Sn4 (cast) 125 60 HB to 90 HB S4 Steel CuPb24Sn4 (sinter) 125 45 HB to 90 HB S5 Steel CuPb10Sn10 (cast) 125 70 HB to 130 HB S6 Steel CuPb10Sn10 (sinter) 125 60 HB to 90 HB As for the material with keys S1 and S2; more suitable for the embossing of grooves. Very high load capacity, with hardened shafts being necessary as a rule, e.g. for gudgeon pins and rocker arm bearings, transmission shafts, steering assemblies and pumps. Available with greater Brinell hardness for special applications. R1 Steel AlSn6Cu 170 35 HB to 45 HB High load capacity, with hardened shafts being necessary as a rule, e.g. for transmissions and hydraulic pumps. A, C, W R2 Steel AlSn20Cu 170 30 HB to 40 HB Good emergency running characteristics, fair load capacity, e.g. for refrigeration plant, compressors and pumps. R3 Steel AlSn12SiCu 170 40 HB to 60 HB High load capacity, good seizure resistance, e.g. for transmissions camshafts and hydraulic pumps. R4 Steel AlZn5 185 HB 60 HB to 100 HB Higher load capacity. A, C, W P1 Steel 140 B1 Bronze With porous sintered bronze, filler and surface coating (running-in coating) of PTFE with additives. 100 Low friction; for vehicle suspension struts, gear levers, pivot bearings, pumps and lifting magnets; operating range from 200 °C to + 280 °C, but not suitable for machining in the bearing bore; suitable for use as a dry bearing material. B P2 Steel 140 B2 Bronze With porous sintered bronze coated with thermoplastic. 100 High load capacity, greased on assembly, e.g. for cranes, hoists, lifts, packaging machinery and agricultural machinery, some temperature limitation.e D, E -,-,- ISO 3547-4:2006(E) 4 © ISO 2006 All rights reserved Table 2 (continued) Designationa Hardnessb (guide values) Key Backing material Bearing material Backing materialc Bearing material Notes relating to use d D1 Steel 140 D2 Stainless steel 140 D3 Bronze 100 D4 Aluminium alloy With directly bonded polymer bearing lining, e.g. PTFE. 60 For specific applications where special properties are required, e.g. limited space, corrosion resistance. B The materials S1 to S6 and R1 may be supplied with an additional running-in coating, for series A and W only, by agreement with the supplier. a Steel composition shall be agreed between the supplier and user. It will normally have a carbon content of less than 0,25 %; composition of bearing material in accordance with ISO 4383. b Hardness testing in accordance with ISO 4384-1. c Hardness for steel and stainless steel HB1/30/10. Hardness for bronze and aluminium alloy HB1/5/30. d Wall thickness limit deviation series (in accordance with ISO 3547-1:2006, Tables 5 and 6). e Temperature limitation for continuous duty depends on type of thermoplastic, e.g. POM: 90 °C; PVDF: 110 °C; PEEK: 250 °C. ISO 3547-4:2006(E) © ISO 2006 All rights reserved 5 Bibliography 1 ISO 683-11, Heat-treatable steels, alloy steels and free-cutting steels Part 11: Wrought case- hardening steels 2 ISO 6932, Cold-reduced carbon steel strip with a maximum carbon content of 0,25 % -,-,- ISO 3547-4:2006(E) ICS 21.100.10 Price based on 5 pages © ISO 2006 All rights reserved -,-,-