ISO INTERNATIONAL STANDARD 7403 Second edition 1998-03-15 Aerospace -- Spline drives -- Wrenching configuration Metric series Aéronautique et espace-Entrainements cannelés Série metrique ISO Reference number ISO7403:1998(E) Copyrightlteatinal Organizatin for Standardization No reproduction or networking permitted without license from IHS Not for Resale ISO 7403:1998(E) 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- governmentai, 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. Draft International Standards adopted by the technicai committees are circulated to the member bodies for voting. Publication as an International a vote. International Standard isO 7403 was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 4, Aerospace fastener systems. This second edition cancels and replaces the first edition (ISO 7403:1983), of which it constitutes a technical revision. @ISO1998 or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case postale 56. CH-1211 Geneve 20 . Switzerland internet [email protected] X.400 C=ch; a=400net; p=iso; 0=isocs; S=central Printed in Switzerland ii Copyright Int tional Organization for Standardization No reproduction or networking permited without license from IHS Not for Resale ISO 7403:1998(E) INTERNATIONAL STANDARD ISO Aerospace -- Spline drives -- Wrenching configuration - Metric series 1 Scope This international Standard specifies the metric wrenching configuration dimensions of spline drives. This is a design standard. 2Configurationanddimensions See figures 1 and 2 and tables 1 and 2. Dimensions and tolerances are expressed in millimetres. Variations in size, form and position of the 12 splines are permitted within the wrenching length, provided that the actual profile falls within the maximum and minimum material conditions shown in figures 1 and 2. Dimensions are prior to forming the locking element on self-locking nuts. 3 Designation The drive designation shall be as follows: IS07403-050 Drive standard Wrenchingdashnumber (seetables 1and2) ded by IHS t No reproduction or networking permitted without license from IHS Not for Resale