ISO 22879:2016

Castors and wheels - Requirements for castors for furniture

ISO 22879:2016 specifies the technical requirements, the appropriate dimensions and the requirements for the testing of castors for furniture. It is applicable to castors for general furniture applications, but specifically excludes those for swivel chairs and other specialized applications. NOTE Castors for swivel chairs are specified in ISO 22880.

Roues et roulettes — Exigences pour roulettes pour meubles

General Information

• Status: Published
• Publication Date: 27-Nov-2016
• ICS: 97.140 - Furniture
• Technical Committee: ISO/TC 110 - Industrial trucks
• Drafting Committee: ISO/TC 110 - Industrial trucks
• Current Stage: 9093 - International Standard confirmed
• Start Date: 22-Oct-2022
• Completion Date: 13-Dec-2025

Relations

• Revises: ISO 22879:2004 - Castors and wheels - Requirements for castors for furniture
• Effective Date: 23-Apr-2020

Overview

ISO 22879:2016 - "Castors and wheels - Requirements for castors for furniture" specifies the technical requirements, dimensional limits and test requirements for castors used in general furniture applications. It applies to fixed and swivel castors for furniture but excludes castors for swivel chairs and other specialised chair applications (see ISO 22880 for those). The standard reinstates prior technical content and is intended to harmonize product specification, testing and marking worldwide.

Key topics and technical requirements

• Scope and classification
  • Applicable to castors for general furniture; swivel-chair castors excluded.
  • Castors are classified by fixing system, type, dimensions and performance level.
• Fixing systems
  • Top plates, stems (including threaded stems), circlips and other fixings are defined; selection depends on the intended application.
• Castor types
  • Type H - hard tread (plain wheels), suited for carpeted floors.
  • Type W - soft/tyred resilient tread, suited for hard stone, wood or tiled floors.
  • Type C - electrically conductive castors (can be hard or soft tread).
  • Type S - inclined axle castors.
• Dimensions
  • The standard defines required dimensions and symbols (examples taken from the standard): wheel diameter D (minimum 20 mm), external corner radius r (minimum 1.5 mm), inclination angle β (maximum 25°), and minimum tread dimensions for single- and twin-wheel designs.
• Testing and performance requirements
  • Detailed test regimes are specified, including: impact performance, electrical resistance, manual locking device tests, dynamic tests, rolling resistance, swivel resistance, static load performance, and stem retention.
  • Test procedures reference ISO 22878 (test methods and apparatus) and include environmental/test sequence requirements, tolerances and acceptance criteria.
• Conformity and marking
  • Requirements for declaring conformity and product marking (including special marking for conductive/antistatic castors) are included.

Applications and users

ISO 22879:2016 is used by:

• Furniture manufacturers and designers specifying castors for commercial/residential furniture
• Component suppliers and OEMs producing castors and wheels
• Quality and test laboratories performing compliance testing
• Procurement teams ensuring product conformity to international requirements
• Regulatory bodies and standards committees harmonizing national standards

Practical benefits include clearer product specifications, improved interchangeability of castors, and consistent test-based quality assurance for furniture mobility components.

Related standards

• ISO 22880 - Castors for swivel chairs (excluded from ISO 22879)
• ISO 22878:2004 - Test methods and apparatus for castors and wheels
• ISO 22877 - Terms and definitions used for castors and wheels

Keywords: ISO 22879:2016, castors for furniture, castors and wheels, furniture castors testing, castor dimensions, Type H W C S, ISO castor standard.

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 22879
Second edition
2016-12-01
Castors and wheels — Requirements
for castors for furniture
Roues et roulettes — Exigences pour roulettes pour meubles
Reference number
©
ISO 2016
© ISO 2016, Published in Switzerland
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
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ii © ISO 2016 – All rights reserved

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Dimensions and classification . 1
4.1 Characteristics . 1
4.2 Fixing system . 1
4.3 Castor type . 2
4.3.1 General. 2
4.3.2 Type H . 3
4.3.3 Type W . 3
4.3.4 Type C . 3
4.3.5 Type S . 3
4.4 Dimensions . 3
4.5 Performance level . 4
5 Requirements for testing . 4
5.1 General . 4
5.2 Standard conditions . 4
5.2.1 Environmental conditions . 4
5.2.2 Test sequence . . . 4
5.3 Impact performance . 5
5.3.1 Test objectives, apparatus and procedures . 5
5.3.2 Test values . 5
5.3.3 Tolerances . 5
5.3.4 Acceptance criteria . 5
5.4 Electrical resistance test . 6
5.4.1 Test objectives, apparatus and procedures . 6
5.4.2 Test values . 6
5.4.3 Tolerances . 6
5.4.4 Acceptance criteria . 6
5.5 Manual locking device . 6
5.5.1 Test objectives, apparatus and procedures . 6
5.5.2 Test values . 6
5.5.3 Tolerances . 7
5.5.4 Acceptance criteria . 7
5.6 Dynamic test. 7
5.6.1 Test objectives, apparatus and procedures . 7
5.6.2 Test values . 7
5.6.3 Tolerances . 7
5.6.4 Acceptance criteria . 8
5.7 Rolling resistance . 8
5.7.1 Test objectives, apparatus and procedures . 8
5.7.2 Test values . 8
5.7.3 Tolerances . 8
5.7.4 Acceptance criteria . 9
5.8 Swivel resistance . 9
5.8.1 Test objectives, apparatus and procedures . 9
5.8.2 Test values . 9
5.8.3 Tolerances . 9
5.8.4 Acceptance criteria . 9
5.9 Static load performance . 9
5.9.1 Test objectives, apparatus and procedures . 9
5.9.2 Test values . 9
5.9.3 Tolerances .10
5.10 Stem retention .10
5.10.1 Test objectives, apparatus and procedures .10
5.10.2 Test values .10
5.10.3 Acceptance criteria .10
6 Conformity .10
7 Marking .11
7.1 Product marking .11
7.2 Marking of electrically conductive or antistatic castors/wheels .11
Bibliography .12
iv © ISO 2016 – All rights reserved

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 th
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