ISO 9448-9:2013

Tools for pressing - Guide bushes - Part 9: Form B, ball cage bushes, plain, type 2

ISO 9448-9:2013 specifies the main dimensions and tolerances, in millimetres, of guide bushes of form B, plain ball cage bushes, type 2, 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 9448-9:2013.

Outillage de presse — Bagues de guidage — Partie 9: Forme B, bagues lisses pour guidage à billes, type 2

L'ISO 9448-9:2013 prescrit les principales dimensions et tolérances, en millimètres, des bagues de guidage de forme B, bagues lisses guidage à billes, de type 2, destinées à être utilisées dans les outillages de presse et devant être montées dans une semelle par ajustement serré. Elle donne les indications relatives aux matériaux, prescrit une dureté et spécifie la désignation des bagues conformes à l'ISO 9448-9:2013.

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 9448-9:1992 - Tools for pressing - Guide bushes - Part 9: Form B, ball cage bushes, plain, type 2
• Effective Date: 03-Nov-2011

Overview

ISO 9448-9:2013 is an international standard published by the International Organization for Standardization (ISO) that specifies the main dimensions, tolerances, and material requirements for guide bushes used in press tools. Specifically, this part covers form B, plain ball cage bushes, type 2, which are designed to be mounted in clamp plates by interference fit. The standard ensures precision, consistency, and interchangeability of these critical components in tooling applications.

This standard is essential for manufacturers, tool designers, and engineers involved in the production and maintenance of press tools, supporting reliable operation and extending tool life.

Key Topics

• Dimensions and Tolerances
  ISO 9448-9:2013 precisely defines the main dimensions of type 2 plain ball cage bushes in millimetres, including guiding diameter and length. It specifies tolerance classes, such as H7 for the bush fit and M5 for the internal diameter, ensuring optimal preload for ball bearings.

• Material and Hardness Requirements
  While the choice of material is left to the manufacturer, the hardness is strictly set at 60 HRC (Rockwell Hardness Scale) to assure durability and wear resistance. This aligns with ISO 6508-1 standards for hardness testing.

• Designation System
  The standard provides a clear designation format for these guide bushes, including reference to the standard number, bush form, guiding diameter, and length. For example:
  Guide bush ISO 9448-9 B - 25 × 50

• Manufacturing Guidelines
  Details like chamfers, radii, and lubrication grooves are not fixed by the standard, allowing manufacturers flexibility to tailor guide bushes to specific tooling needs while maintaining core dimensional and hardness criteria. Surface finish requirements on critical diameter ensure precise assembly and function.

Applications

ISO 9448-9:2013 guide bushes are primarily used in press tool assemblies, where accurate and reliable guidance of moving parts is crucial. Typical applications include:

• Metal Stamping and Forming Tools
  Ensuring the smooth movement of press components for high-precision metal forming operations.

• Automotive and Aerospace Manufacturing
  Supporting the production of complex body panels and structural parts requiring tight tolerance guidance systems.

• Tool and Die Industry
  Facilitating the design, manufacture, and maintenance of various pressing and moulding tools that depend on reliable ball cage bushes for extended service life.

• General Industrial Machinery
  Anywhere a robust, interference-fit bush with a ball cage is needed to guide and support high loads and repetitive motion.

Adopting ISO 9448-9-compliant ball cage bushes helps reduce downtime, maintain product quality, and minimize maintenance costs by ensuring standardization and interchangeability.

Related Standards

• ISO 9448 Series
  This standard is part 9 of the ISO 9448 series covering various forms and types of guide bushes for pressing tools including:

  • Part 1: Forms
  • Part 2: Form A, gliding bushes, plain, type 1
  • Part 3: Form B, ball cage bushes, plain, type 1
  • Part 4 to Part 11: Various bushes types and forms for flanged, headed, stepped variations.

• ISO 6508-1
  Metallic materials - Rockwell hardness test - Part 1: Test method, referenced for hardness measurement compliance.

• ISO/IEC Directives, Part 1 and Part 2
  Guidelines for the development and editorial rules of ISO standards.

Summary

ISO 9448-9:2013 provides critical specifications for form B plain ball cage bushes, type 2, used in press tool applications. The standard supports consistent manufacturing of precision guide bushes with defined dimension tolerances and hardness requirements, enabling reliable tool performance. Manufacturers and engineers benefit from adopting this standard to align with global best practices in pressing tool components.

Keywords: ISO 9448-9, guide bushes, ball cage bushes, press tool components, interference fit bushes, form B bushes, tool pressing standards, hardness 60 HRC, manufacturing tolerances, metal stamping, tool design, industrial tooling.

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 9448-9
Second edition
2013-12-15
Tools for pressing — Guide bushes —
Part 9:
Form B, ball cage bushes, plain, type 2
Outillage de presse — Bagues de guidage —
Partie 9: Forme B, bagues lisses pour guidage à billes, type 2
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 th
...

NORME ISO
INTERNATIONALE 9448-9
Deuxième édition
2013-12-15
Outillage de presse — Bagues de
guidage —
Partie 9:
Forme B, bagues lisses pour guidage à
billes, type 2
Tools for pressing — Guide bushes —
Part 9: Form B, ball cage bushes, plain, type 2
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 9448-9 a été élaborée par le comité technique ISO/TC 29, Petit outillage, sous-comité SC 8, Outillage
de presse e
...