ISO 1005-8-1986 PDF

Full title and description

ISO 1005-8:1986 — Railway rolling stock material — Part 8: Solid wheels for tractive and trailing stock — Dimensional and balancing requirements. Specifies dimensional requirements, surface roughness and residual unbalance for forged, rolled or cast solid wheels with curved or straight webs, and references the general technical delivery requirements of ISO 404.

Abstract

Specifies the dimensional requirements, the surface roughness and the residual unbalance of forged, rolled or cast solid wheels with curved or straight webs in various degrees of finish. Applies alongside general technical delivery requirements given in ISO 404.

General information

• Status: Published (International Standard; confirmed after periodic reviews).
• Publication date: 13 November 1986.
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 45.060.01 (Railway rolling stock in general), 77.140.99 (Other iron and steel products).
• Edition / version: Edition 1 (1986).
• Number of pages: 10.

Scope

Sets out the dimensional tolerances, specified surface roughness and allowable residual unbalance for solid wheels intended for tractive and trailing railway stock. Covers wheels produced by forging, rolling or casting and with either curved or straight web profiles; it is intended for use alongside the general technical delivery requirements of ISO 404 and other normative references relevant to drawing tolerancing and wheelset quality.

Key topics and requirements

• Dimensional requirements and tolerances for solid railway wheels (diameters, treads, offsets, web dimensions).
• Surface roughness limits for wheel running surfaces and contacting faces.
• Residual unbalance limits and balancing requirements for finished wheels.
• Applicability to forged, rolled and cast manufacturing methods and to wheels with curved or straight webs.
• Normative references and interaction with ISO 404 (general delivery requirements) and drawing tolerancing standards (e.g., ISO 1101).

Typical use and users

Used by railway vehicle designers, wheel and wheelset manufacturers, quality and inspection engineers, maintenance organizations, procurement teams and conformity assessment bodies when specifying or verifying solid wheels for tractive and trailing rolling stock.

Related standards

Directly related to other parts of ISO 1005 (e.g., parts covering wheelset and quality requirements), ISO 404 (steel and steel products — general technical delivery requirements) and drawing/tolerancing standards such as ISO 1101. National and regional equivalents or similar documents (for example certain BS/EN standards on wheels and wheelsets) may be used alongside ISO 1005-8:1986 in procurement and compliance contexts.

Keywords

railway wheels; solid wheels; wheel dimensions; wheel balancing; residual unbalance; surface roughness; wheel tolerances; ISO 1005; ISO 404; wheel manufacturing; forged wheels; rolled wheels; cast wheels.

FAQ

Q: What is this standard?

A: ISO 1005-8:1986 is an international standard that specifies dimensional, surface finish and balancing requirements for solid wheels used on tractive and trailing railway stock.

Q: What does it cover?

A: It covers dimensional tolerances (tread, diameter, web geometry), surface roughness requirements and limits for residual unbalance for forged, rolled or cast solid wheels with curved or straight webs, and refers to general delivery requirements in ISO 404.

Q: Who typically uses it?

A: Railway OEMs, wheel manufacturers, maintenance and inspection teams, procurement specialists and standards/quality engineers involved in wheel specification, manufacture and acceptance.

Q: Is it current or superseded?

A: As published on 13 November 1986, ISO 1005-8:1986 remains the published edition; it has undergone periodic systematic review and was confirmed following review activities (ISO records show confirmation actions during reviews, including confirmation in 2024). Users should check with their national standards body or ISO for the very latest status before relying on the text for regulatory or contractual requirements.

Q: Is it part of a series?

A: Yes — ISO 1005 is a multi‑part series covering railway rolling stock material; Part 8 is specifically about solid wheels for tractive and trailing stock and is intended to be used with other parts of ISO 1005 and related ISO standards (for example ISO 1005-6/7, ISO 404 and ISO 1101).

Q: What are the key keywords?

A: Solid wheels, wheel balancing, residual unbalance, surface roughness, dimensional tolerances, railway rolling stock, ISO 1005, wheel manufacture.