(ISO 1005/8 nternational Standard INTERNATIONALORGANIZATION FOR STANDARDIZATIONMEXAYHAPOAHAR OPTAHW3AUMR NO CTAHAAPTW3AUMWORGANISATION INTERNATIONALE DE NORMALISATION Railway rolling stock material .. Part 8 : Solid wheels for tractive and trailing stock - Dimensional and balancing requirements Materiel roulant de chemin de fer -- Partie 8 : Roues monoblocs pour matériel moteur et materiel remorqué -- Prescriptions dimensionnelles et d'équilibrage First edition - 1986-11-15 ISO 1005/8-1986 (E) UDC 629.4.027.4 Ref. No. ISO 1005/8-1986 (E) Descriptors : railway equipment, railway rolling stock, steel products, wheels, specifications, dimensions, balancing, acceptance testing. Pricebased on10pages Preiscr 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, govern- mental and non-governmental, in liaison with Iso, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISo Council. They are approved in accordance with IsO procedures requiring at least 75 % approval by the member bodies voting. International Standard ISO 1005/8 was prepared by Technical Committee ISO/TC 17, Steel. Users should note that all International Standards undergo revision from time to time and that any reference made herein to any other International Standard implies its latest edition, unless otherwise stated. ? International Organization for Standardization, 1986 Printed in Switzerland ISO1005/8-1986 (E) INTERNATIONAL STANDARD Railway rolling stock material Part 8 : Solid wheels for tractive and trailing stock 一 Dimensional and balancing requirements 1 Scope and field of application that the combination of testing category A with tolerance category Y is principally applied on railway systems where frequent or high-speed passenger operation is predominant orwherefreight 1.1 This part of ISO 1005 specifies and passenger services are intensively integrated; a) the dimensional requirements 1) shown in table 3 and that the combination of testing category B and tolerance table 4 (see also 5.1); category Z is principally applied on railway systems where freight operation is predominant and where freight and passenger services the surface roughness (see 5.2); and are less integrated; b) -- that the final combination of the categories shall be left to the c) the residual unbalance (see 5.3) discretion of the purchaser. of forged, rolled or cast solid wheels with curved or straight 1.2 The quality requirements for solid wheels are given in webs in various degrees of finish. ISO 1005/6. NOTE -- The compilation of an International Standard for material, 1.3 3 In addition to the requirements of this part of iS0 1005, testing and dimensional requirements of wheelset components and the general technical delivery requirements of iso 404 apply. assembled wheelsets is difficult because of the different ways in which raiways have developed, in both the commercial and the operating sense, in various parts of the world. These different forms of develop ment are characterized, for example, by railway systems in which 2 References passenger services and by systems largely dedicated to the haulage of freight. The infrastructures of these two systems are normally different ISO 404, Steel and steel products -- General technical delivery and this and commercial policy can determine the practice adopted in requirements. wheelset design in terms of both materials and physical characteristics The relevant parts of ISo 1005 acknowledge, or will in a future revision ISo 468, Surfac