ISO 368:2017

INTERNATIONAL ISO
STANDARD 368
Fifth edition
2017-12
Spinning preparatory, spinning and
doubling (twisting) machinery —
Tubes for ring-spinning, doubling and
twisting spindles, taper 1:38 and 1:64
Matériel de préparation de filature, de filature et de retordage —
Tubes pour broches de continus à filer et à retordre à anneaux,
conicité 1:38 et 1:64
Reference number
©
ISO 2017
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Types, dimensions and tolerances . 1
4.1 Tubes . 1
4.1.1 Tube types . 1
4.1.2 Dimensions . 1
4.1.3 Total run-out tolerance . 1
4.2 Gauges . 1
5 Tubes and gauges . 2
5.1 Tubes . 2
5.2 Gauges . 3
6 Designation . 5
6.1 Tubes . 5
6.2 Gauges . 6
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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 72, Textile machinery and accessories,
Subcommittee SC 1, Spinning preparatory, spinning, twisting and winding machinery and accessories.
This fifth edition cancels and replaces the fourth edition (ISO 368:2006), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— Clause 2 has been updated;
— additional tube types have been included.
iv © ISO 2017 – All rights reserved

INTERNATIONAL STANDARD ISO 368:2017(E)
Spinning preparatory, spinning and doubling (twisting)
machinery — Tubes for ring-spinning, doubling and
twisting spindles, taper 1:38 and 1:64
1 Scope
This document specifies the dimensions (length and inner diameter) and permissible total run-out
tolerances of tubes with taper 1:38 and 1:64 for ring-spinning, doubling and twisting spindles used in
the textile industry. It also specifies the dime
...