ISO 9448-1:2013

Overview

ISO 9448-1:2013 defines the classification and identification of guide bushes for press tools. As Part 1 of the ISO 9448 series, it describes the seven main forms of guide bushes and their methods of mounting, provides illustrative examples (figures), and establishes a consistent framework for referencing specific guide-bush geometries across the series. This second edition (2013) reinstates the earlier 1991 publication and is maintained by ISO/TC 29/SC 8 (Tools for pressing and moulding).

Key topics

• Scope and purpose: Standardizes how guide bushes are classified and identified for press-tool applications to improve interchangeability and specification clarity.
• Seven main forms: The standard covers Forms A–G, with illustrative examples for both gliding and ball-cage bush styles:
  • Form A (plain gliding)
  • Form B (plain ball cage)
  • Form C (headed gliding)
  • Form D (headed ball cage)
  • Form E (flanged gliding)
  • Form F (flanged ball cage)
  • Form G (stepped gliding)
• Mounting methods: Describes typical mounting arrangements for each form; figures are illustrative and do not limit manufacturer design choices.
• Dimensional references: Basic dimensions - inner and outer diameters and length - are defined in the corresponding parts of the ISO 9448 series (Parts 2–11). ISO 9448-1 itself establishes the classification and form definitions rather than specific sizes.

Applications

ISO 9448-1:2013 is practical and relevant for:

• Toolmakers and press-tool designers specifying guide bushes by form and mounting method.
• Manufacturers and suppliers creating catalogues, CAD libraries, and standardized components for press tools.
• Procurement and quality teams ensuring parts meet consistent identification and interchangeability criteria.
• Maintenance and production engineers selecting replacement bushes and planning retrofits in stamping and pressing operations.
• Standards bodies and technical authors who reference consistent nomenclature across drawings and technical documentation.

Using ISO 9448-1 helps reduce design ambiguity, speeds up supplier communications, and supports global supply-chain compatibility for press-tool components.

Related standards

ISO 9448 is a multi-part series. Relevant parts that give dimensional and type specifics include:

• 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 9448-5 (Form D, ball cage 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)
• ISO 9448-8 (Form G, gliding bushes, stepped, type 1)
• (See Parts 9–11 for additional types and variants.)

Keywords: ISO 9448-1, guide bushes, press tools, guide bush forms, mounting methods, gliding bushes, ball cage bushes, press-tool design, toolmakers.