ISO 9448-3:2013

Tools for pressing - Guide bushes - Part 3: Form B, ball cage bushes, plain, type 1

ISO 9448-3:2013 specifies the main dimensions and tolerances, in millimetres, of guide bushes of form B, plain ball cage bushes, type 1, intended for use in press tools and to be mounted in the clamp plate by means of interference fit. It gives guidance on the materials, and specifies the hardness and the designation of bushes in accordance with ISO 9448-3:2013.

Outillage de presse — Bagues de guidage — Partie 3: Forme B, bagues lisses pour guidage à billes, type 1

L'ISO 9448-3:2013 prescrit les principales dimensions et tolérances, en millimètres, des bagues de guidage de forme B, bagues lisses pour guidage à billes, type 1, destinées à être utilisées dans les outillages de presse et devant être montées dans une semelle par ajustement serré. Elle donne des indications relatives aux matériaux, prescrit une dureté et spécifie la désignation des bagues conformes à l'ISO 9448-3:2013.

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 9448-3:1991 - Tools for pressing - Guide bushes - Part 3: Form B, ball cage bushes, plain, type 1
• Effective Date: 03-Nov-2011

Overview

ISO 9448-3:2013 is an international standard published by the International Organization for Standardization (ISO) that specifies the main dimensions, tolerances, materials, and hardness requirements for guide bushes of form B, ball cage bushes, plain, type 1. These guide bushes are designed specifically for use in press tools and are intended to be mounted in the clamp plate via an interference fit. This standard is essential for manufacturers and engineers working with pressing tools to ensure compatibility, precision, and durability of the guide bushes.

The document focuses on guide bushes used to guide ball bearings within press tooling applications. It sets clear guidelines on nominal dimensions, tolerances, surface finishes, and hardness, helping to ensure reliable and consistent performance in industrial pressing operations.

Key Topics

• Dimensions and Tolerances
  The standard provides detailed specifications for the main dimensions of form B guide bushes, including diameter and length measurements in millimeters. It covers:

  • Nominal diameters ranging from 12 mm to 160 mm
  • Tolerance classes for manufacturing precision
  • Surface roughness requirements (e.g., a surface roughness Ra = 0.05 µm after grinding)

• Materials and Hardness
  While the choice of material is left to the manufacturer, ISO 9448-3:2013 mandates a hardness of 63 ± 1 HRC to ensure durability and wear resistance, crucial for the high-stress environment within press tools.

• Designation and Identification
  The standard defines a systematic naming convention for guide bushes for easy identification, which includes:

  • The term "Guide bush"
  • The standard reference "ISO 9448-3"
  • Form type (e.g., B)
  • Diameter and length (e.g., 12 × 25)
    This facilitates clear communication across manufacturing and supply chains.

• Mounting Instructions
  Guide bushes are designed to be mounted in press tools using interference fits, typically placed in clamp plates or tool shoes, ensuring a secure and stable assembly.

Applications

ISO 9448-3:2013 guide bushes are primarily used in various press tool operations across multiple industries, including automotive, aerospace, electronics, and general manufacturing. Typical use cases include:

• Metal Stamping and Forming: Precision guide bushes support ball cage assemblies to ensure smooth and accurate alignment of press components during high-speed stamping or forming operations.
• Die and Mold Tooling: These bushes play a critical role in the longevity and accuracy of dies and molds by reducing wear and tear on moving parts.
• Mechanical Presses: They contribute to reliable functioning by maintaining correct positioning of guide pins and ensuring consistent tool motion.
• Heavy-duty Industrial Presses: The hardness and precise tolerances ensure resistance to deformation and wear in demanding environments.

Related Standards

ISO 9448-3:2013 is part of a comprehensive series of ISO standards covering guide bushes for pressing tools, including:

• ISO 9448-1: General forms of guide bushes.
• ISO 9448-2: Form A, plain guide bushes for smooth guiding, type 1.
• ISO 9448-4: Form C, collar guide bushes for smooth guiding, type 1.
• ISO 9448-5: Form D, collar guide bushes for ball cage guiding, type 1.
• ISO 6508-1: Specifies Rockwell hardness testing-relevant for verifying hardness requirements in ISO 9448-3.

These related documents provide further specifications and options for different types of guide bushes, enabling manufacturers to choose appropriate components for their specific pressing tool applications.

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Keywords: ISO 9448-3, guide bushes, ball cage bushes, press tools, interference fit, pressing tool components, tool hardness, manufacturing tolerances, metal stamping bushings, press tool standard, ISO standards guide bushes.

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 9448-3
Second edition
2013-12-15
Tools for pressing — Guide bushes —
Part 3:
Form B, ball cage bushes, plain, type 1
Outillage de presse — Bagues de guidage —
Partie 3: Forme B, bagues lisses 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 . 2
4 Designation . 2
Bibliography . 3
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 I
...

NORME ISO
INTERNATIONALE 9448-3
Deuxième édition
2013-12-15
Outillage de presse — Bagues de
guidage —
Partie 3:
Forme B, bagues lisses pour guidage à
billes, type 1
Tools for pressing — Guide bushes —
Part 3: Form B, ball cage bushes, plain, 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 . 2
4 Désignation . 2
Bibliographie . 3
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 9448-3 a été élaborée par le comité technique ISO/TC 29, Petit outillage, sous-comité SC 8, Petit
outillage de presse - Bagues de guidage.
Cette deuxième édition résulte de la réintégration de l’ISO 9448-3:1991, qui a été annulée en 2006 et
don
...