ISO 9448-5:2013

Tools for pressing - Guide bushes - Part 5: Form D, ball cage bushes, headed, type 1

ISO 9448-5:2013 specifies the main dimensions and tolerances, in millimetres, of guide bushes of form D, headed ball cage bushes, type 1, intended for use in press tools and to be mounted in the clamp plate with transition fit and fixed to the plate by means of screws. It gives guidance on the materials, and specifies the hardness and the designation of bushes in accordance with ISO 9448-5:2013.

Outillage de presse — Bagues de guidage — Partie 5: Forme D, bagues à collerette pour guidage à billes, type 1

L'ISO 9448-5:2013 prescrit les principales dimensions et tolérances, en millimètres, des bagues de guidage de forme D, bagues à collerette pour guidage à billes, de type 1, destinées à être utilisées dans les outillages de presse et devant être montées dans une semelle avec un ajustement incertain, et fixées à la semelle par des vis. Elle donne des indications relatives aux matériaux, prescrit une dureté et spécifie la désignation des bagues conformes à l'ISO 9448-5:2013.

General Information

• Status: Published
• Publication Date: 10-Dec-2013
• ICS: 25.120.10 - Forging equipment. Presses. Shears
• Technical Committee: ISO/TC 29/SC 8 - Tools for pressing and moulding
• Drafting Committee: ISO/TC 29/SC 8/WG 2 - Tools for pressing
• Current Stage: 9092 - International Standard to be revised
• Start Date: 17-Jun-2025
• Completion Date: 13-Dec-2025

Relations

• Revises: ISO 9448-5:1991 - Tools for pressing - Guide bushes - Part 5: Form D, ball cage bushes, headed, type 1
• Effective Date: 03-Nov-2011

Overview

ISO 9448-5:2013 is an international standard published by the International Organization for Standardization (ISO) that specifies the dimensions, tolerances, material guidelines, and designation rules for a specific type of guide bushes used in press tools. This part of the ISO 9448 series focuses on Form D, headed ball cage bushes, type 1, which are designed to be mounted in the clamp plate of press tools with transition fit and secured by screws.

These guide bushes are critical components in precision pressing operations, ensuring smooth and accurate movement while reducing wear and tear between moving parts. The standard ensures compatibility and interchangeability of these bushes across different manufacturers and tools.

Key Topics

• Dimensions and Tolerances: The standard defines the main dimensions of Form D ball cage bushes including diameters, lengths, clearances, and screw sizes. Tolerances are provided in millimetres, ensuring consistent quality and fit. Key dimensions such as the internal diameter to be lapped or ground with a surface roughness of Ra = 0.05 µm are emphasized for proper preloading of balls.

• Material Requirements: While the specific material choice is left to manufacturers, ISO 9448-5 specifies that the hardness of the bushes must be (63 ± 1) HRC. This hardness ensures durability and resistance to mechanical stress during pressing operations.

• Designation System: The guide bush designation follows a systematic approach including:

  • The term "Guide bush"
  • Reference to ISO 9448-5
  • The form (D)
  • Guiding diameter (D1) in millimetres
  • Length (l1) in millimetres
    For example, a guide bush with a 16 mm diameter and 25 mm length is designated as:
    Guide bush ISO 9448-5 D - 16 × 25

• Mounting and Fit: Form D ball cage bushes are mounted with a transition fit in the clamp plate and fixed by screws. The standard provides recommended sizes and fits to prevent assembly errors and ensure secure placement.

Applications

ISO 9448-5:2013 is predominantly used in the tooling and metal pressing industries, particularly for:

• Press tools and dies: Ensuring accurate guiding and alignment of moving parts in stamping, punching, and forming operations.
• Precision manufacturing: Applications requiring high durability, precise dimensions, and reliable performance of guide bushes in heavy-duty pressing equipment.
• Maintenance and Replacement: Facilitates standardized replacement parts for repairing and upgrading existing press tools.

Adherence to this standard helps manufacturers and users achieve enhanced tool life, consistent performance, and reduced downtime in production processes.

Related Standards

ISO 9448-5:2013 is part of a comprehensive series covering various types and forms of guide bushes for pressing tools:

• ISO 9448-1 - Defines forms of guide bushes
• ISO 9448-2 - Form A, gliding bushes, plain, type 1
• ISO 9448-3 - Form B, ball cage bushes, plain, type 1
• ISO 9448-4 - Form C, gliding bushes, headed, type 1
• ISO 9448-6 - Form E, gliding bushes, flanged, type 1
• ISO 9448-7 - Form F, ball cage bushes, flanged, type 1

Additionally, ISO 6508-1 is referenced for the Rockwell hardness testing method, critical for material hardness determination.

Practical Value

Implementing ISO 9448-5:2013 in design and manufacturing processes offers significant benefits:

• Ensures interchangeability and compatibility of guide bushes across different suppliers.
• Provides clear material and hardness criteria to improve part longevity and reduce tooling failures.
• Reduces risks of assembly errors through standardized dimensions and transition fits.
• Facilitates quality control and inspection by defining surface roughness and tolerance requirements.
• Supports international trade and procurement by harmonizing specifications globally.

By conforming to this standard, press tool manufacturers and maintenance professionals can achieve reliable, efficient, and cost-effective pressing operations.

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 9448-5
Second edition
2013-12-15
Tools for pressing — Guide bushes —
Part 5:
Form D, ball cage bushes, headed, type
Outillage de presse — Bagues de guidage —
Partie 5: Forme D, bagues à collerette pour guidage à billes, type 1
Reference number
©
ISO 2013
© ISO 2013
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
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved

Contents Page
Foreword .iv
1 Scope . 1
2 Dimensions . 1
3 Material . 3
4 Designation . 3
Bibliography . 4
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. 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. 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 meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to t
...

NORME ISO
INTERNATIONALE 9448-5
Deuxième édition
2013-12-15
Outillage de presse — Bagues de
guidage —
Partie 5:
Forme D, bagues à collerette pour
guidage à billes, type 1
Tools for pressing — Guide bushes —
Part 5: Form D, ball cage bushes, headed, type 1
Numéro de référence
©
ISO 2013
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2013
Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni utilisée
sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie, l’affichage sur
l’internet ou sur un Intranet, sans autorisation écrite préalable. Les demandes d’autorisation peuvent être adressées à l’ISO à
l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Publié en Suisse
ii © ISO 2013 – Tous droits réservés

Sommaire Page
Avant-propos .iv
1 Domaine d’application . 1
2 Dimensions . 1
3 Matériau et dureté correspondante . 3
4 Désignation . 3
Bibliographie . 4
Avant-propos
L’ISO (Organisation internationale de normalisation) est une fédération mondiale d’organismes
nationaux de normalisation (comités membres de l’ISO). L’élaboration des Normes internationales est
en général confiée aux comités techniques de l’ISO. Chaque comité membre intéressé par une étude
a le droit de faire partie du comité technique créé à cet effet. Les organisations internationales,
gouvernementales et non gouvernementales, en liaison avec l’ISO participent également aux travaux.
L’ISO collabore étroitement avec la Commission électrotechnique internationale (CEI) en ce qui concerne
la normalisation électrotechnique.
Les Normes internationales sont rédigées conformément aux règles données dans les Directives ISO/CEI,
Partie 2.
La tâche principale des comités techniques est d’élaborer les Normes internationales. Les projets de
Normes internationales adoptés par les comités techniques sont soumis aux comités membres pour vote.
Leur publication comme Normes internationales requiert l’approbation de 75 % au moins des comités
membres votants.
L’attention est appelée sur le fait que certains des éléments du présent document peuvent faire l’objet de
droits de propriété intellectuelle ou de droits analogues. L’ISO ne saurait être tenue pour responsable de
ne pas avoir identifié de tels droits de propriété et averti de leur existence.
L’ISO 9448-5 a été élaborée par le comité technique ISO/TC 29, Petit outillage, sous-comité SC 8, Outillage
de presse et de moulage.
Cette deuxième édition résulte de la réintégration de l’ISO 9448-5:1991, qui a été annulée en 2006 et
dont le contenu technique était identique.
L’ISO 9448 comprend les parties suivantes, présentées sous le titre général Outillage de presse — Bagues
de guidage:
— Part
...