ISO-10766-2006.pdf

Reference number ISO 10766:2006(E) © ISO 2006 INTERNATIONAL STANDARD ISO 10766 Second edition 2006-01-15 Hydraulic fluid power Cylinders Housing dimensions for rectangular- section-cut bearing rings for pistons and rods Transmissions hydrauliques Vérins Dimensions de logements de dispositifs de guidage à section rectangulaire pour pistons et tiges de piston Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 10:33:40 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 10766:2006(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 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 10:33:40 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 10766:2006(E) © ISO 2006 All rights reserved iii Contents Page Foreword iv 1 Scope . 1 2 Normative references. 1 3 Terms and definitions. 1 4 Symbols. 2 5 Typical example of a rectangular-cut-section bearing ring 2 6 General requirements. 3 7 Dimensions of cut bearing ring housings 3 8 Tolerances. 8 9 Diametral clearance 8 10 Identification statement (Reference to this International Standard) 8 Bibliography. 9 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 10:33:40 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 10766:2006(E) iv © ISO 2006 All rights reserved 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 10766 was prepared by Technical Committee ISO/TC 131, Fluid power systems, Subcommittee SC 7, Sealing devices. This second edition cancels and replaces the first edition (ISO 10766:1996), Clause 9 and Figures 2 and 3 of which have been technically revised. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 10:33:40 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 10766:2006(E) © ISO 2006 All rights reserved 1 Hydraulic fluid power Cylinders Housing dimensions for rectangular-section-cut bearing rings for pistons and rods 1 Scope This International Standard specifies the preferred range of nominal dimensions and associated tolerances for a series of hydraulic cylinder piston and rod housings for rectangular-section-cut bearing rings, of the type shown in Clause 5, for applications in the following range of dimensions: for cylinders with bores of 16 mm to 500 mm, inclusive; for rods with diameters of 12 mm to 360 mm, inclusive. This International Standard does not give details of cut bearing ring design, because the manner of construction of cut bearing rings varies with each manufacturer. The design material of cut bearing rings and any incorporated anti-extrusion component are determined by conditions such as temperature and pressure. 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 286-2:1988, ISO system of limits and fits Part 2: Tables of standard tolerance grades and limit deviations for holes and shafts ISO 4287:1997, Geometrical Product Specification (GPS) Surface texture: Profile method Terms, definitions and surface texture parameters ISO 5598:1985, Fluid power systems and components Vocabulary 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 5598 apply. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 10:33:40 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 10766:2006(E) 2 © ISO 2006 All rights reserved 4 Symbols The following letter codes and symbols are used in this International Standard: AL1) outside diameter (bore diameter) of the bearing housing (see Figure 2) D1 outside diameter (groove diameter) of the bearing housing (see Figure 3) d1 inside diameter (groove diameter) of the bearing housing (see Figure 2) MM 1) inside diameter (rod diameter) of the bearing housing (see Figure 3) G internal diameter of the gland (see Figure 3) L axial length of the housing (see Figures 2 and 3) P outside diameter of the piston head (see Figure 2) S radial depth of the housing (see Figures 2 and 3) 1 2 ALd S = for pistons (see Figure 2) 1 2 DMM S = for rods (see Figure 3) 5 Typical example of a rectangular-cut-section bearing ring A typical example is shown in Figure 1. Figure 1 Typical example of a rectangular-cut-section bearing ring 1) Taken from ISO 6099. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 10:33:40 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 10766:2006(E) © ISO 2006 All rights reserved 3 6 General requirements 6.1 Corners All sharp edges and burrs shall be removed from corners of supporting surfaces and shall be rounded. 6.2 Surface finish 5.2.1 The value of requirements Ra and Rt (see ISO 4287) for the surface finish of the bearing ring housing should not exceed 3,2 µm for Ra and 16 µm for Rt. 5.2.2 The surface finish for the working surface (bore or rod) against which the bearing ring operates is usually dictated by the requirements of any associated seal, but it should preferably not exceed 0,6 µm for Ra and 2,4 µm for Rt. Where surface roughness measurements are taken, it is recommended that instruments complying with ISO 3274, including an electric wave filter, be used. 6.3 Nominal housing dimensions Nominal dimensions of the rectangular-section housings shall be in accordance with the dimensions given in Table 1. Table 1 Nominal dimensions of rectangular-section housings Dimensions in millimetres L 4 5,6 9,7 15 25 S 1,55 2,5 2,5 2,5 2,5 4 7 Dimensions of cut bearing ring housings 7.1 Dimensions of housings for pistons Cut bearing ring housings for pistons shall be in accordance with Figure 2 and Table 2. For tolerances, the requirements given in Clause 8 shall apply. Several bearing rings can be fitted into multiple grooves, if necessary, to meet the required length. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 10:33:40 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 10766:2006(E) 4 © ISO 2006 All rights reserved Dimensions in millimetres a See Clause 9. Figure 2 Cut bearing ring housing for pistons Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 10:33:40 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 10766:2006(E) © ISO 2006 All rights reserved 5 Table 2 Dimensions of cut bearing ring housings for pistons Dimensions in millimetres AL d1 L S AL d1 L S 11 5,6 2,5 9,7 16 12,9 4 1,55 200 195 15 15 5,6 2,5 9,7 20 16,9 4 1,55 220 215 15 20 5,6 2,5 9,7 25 21,9 4 1,55 250 245 15 27 5,6 2,5 15 32 28,9 4 1,55 275 25 2,5 35 5,6 2,5 280 272 25 4 40 36,9 4 1,55 15 45 5,6 2,5 315 25 2,5 50 46,9 4 1,55 320 312 25 4 5,6 15 63 58 9,7 355 25 2,5 5,6 360 352 25 4 80 75 9,7 15 5,6 395 25 2,5 100 95 9,7 400 392 25 4 5,6 15 125 120 9,7 445 25 2,5 9,7 450 442 25 4 140 135 15 15 9,7 495 25 2,5 160 155 15 500 492 25 4 9,7 180 175 15 2,5 7.2 Dimensions of housings for rods Cut bearing ring housings for rods shall be in accordance with Figure 3 and Table 3. For tolerances, the requirements given in Clause 8 shall apply. Several bearing rings can be fitted into multiple grooves, if necessary, to meet the required length. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 10:33:40 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 10766:2006(E) 6 © ISO 2006 All rights reserved Dimensions in millimetres a See Clause 9. Figure 3 Cut bearing ring housing for rods Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 10:33:40 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 10766:2006(E) © ISO 2006 All rights reserved 7 Table 3 Dimensions of cut bearing ring housings for rods Dimensions in millimetres MM D1 L S MM D1 L S 12 15,1 4 9,7 14 17,1 4 100 105 15 16 19,1 4 9,7 18 21,1 4 110 115 15 20 23,1 4 9,7 22 25,1 4 125 130 15 28,1 4 1,55 9,7 25 30 5,6 2,5 140 145 15 31,1 4 1,55 9,7 28 33 5,6 160 165 15 5,6 9,7 32 37 9,7 180 185 15 5,6 15 36 41 9,7 200 205 25 5,6 15 40 45 9,7 220 225 25 5,6 15 45 50 9,7 250 255 25 5,6 15 50 55 9,7 285 25 2,5 5,6 280 288 25 4 56 61 9,7 15 5,6 325 25 2,5 63 68 9,7 320 328 25 4 5,6 15 70 75 9,7 365 25 2,5 9,7 360 368 25 4 80 85 15 9,7 90 95 15 2,5 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 10:33:40 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 10766:2006(E) 8 © ISO 2006 All rights reserved 8 Tolerances The dimensions of housings for cut bearing rings shall be within the limits given in Table 4. Table 4 Tolerances for dimensions of cut bearing ring housings Tolerances in millimetres Dimension Limits AL No more than H10 (see ISO 286-2) u 115 mm 0,05 0 + D1 115 mm 0,08 0 + G See Clause 9 u 100 mm 0 0,05 d1 100 mm 0 0,08 L 0,2 0 + MM Usually related to seal requirements, but typically f8 to h9 (see ISO 286-2) P See Clause 9 S Nominal size only 9 Diametral clearance The diametral clearance for piston applications is the difference between diameters AL and P (see Figure 2). It may be further increased by the expansion of the cylinder that results from internal pressure. The diametral clearance for rod applications is the difference between diameters G and MM (see Figure 3). This diametral clearance controls the extrusion gap for any associated seal, either mounted to the piston, or fitted to the gland in a rod application. It is recommended that details concerning diameter P or G are the subject of consultation between the housing designer and bearing ring manufacturer, taking account of the bearing ring material and the operating conditions. 10 Identification statement (Reference to this International Standard) Use the following statement in test reports, catalogues and sales literature when electing to comply with this International Standard: “Housings for rectangular-section-cut bearings rings for pistons and rods conform to ISO 10766:2006, Hydraulic fluid power Cylinders Housing dimensions for rectangular-section-cut bearing rings for pistons and rods.” Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 10:33:40 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 10766:2006(E) © ISO 2006 All rights reserved 9 Bibliography 1 ISO 286-1:1988, ISO system of limits and fits Part 1: Bases of tolerances, deviations and fits 2 ISO 3274:1996, Geometrical Product Specificatio