ISO 7803:1987
(Main)Commercial road vehicles - Steering ball joints
Commercial road vehicles - Steering ball joints
Specifies the main dimensions of steering ball joints. The ball joint is considered as being a single piece with its socket, so the ball-socket assembly is specified. A figure illustrates shapes and reference quantities of concern. Tabulates parameters for nominal diameters from 27 up to 50 mm.
Véhicules routiers utilitaires — Rotules de direction
La présente Norme internationale spécifie les caractéristiques dimensionnelles principales des rotules de direction des véhicules utilitaires. La rotule de direction est considérée comme faisant un tout avec son boîtier. L'ensemble rotule-boîtier fait donc l'objet de la présente Norme internationale.
General Information
- Status
- Published
- Publication Date
- 24-Jun-1987
- Current Stage
- 9093 - International Standard confirmed
- Start Date
- 24-Feb-2021
- Completion Date
- 13-Dec-2025
Overview
ISO 7803:1987 is an international standard developed by the International Organization for Standardization (ISO) that specifies the main dimensional characteristics of steering ball joints used in commercial road vehicles. This standard defines the ball joint as a unified assembly consisting of the ball and socket, providing detailed parameters to ensure uniformity and compatibility across vehicle manufacturing and maintenance. It targets steering components for utility and commercial road vehicles, ensuring safety, reliability, and interoperability in automotive steering systems.
Key Topics
Scope and Purpose
ISO 7803:1987 sets clear dimensional requirements for steering ball joints, treating the ball and its socket as a single functional unit vital to vehicle steering mechanisms.Dimensional Specifications
The standard provides detailed measurements for nominal diameters ranging from 27 mm to 50 mm. Important dimensional aspects include:- Diameter sizes and tolerances
- Thread specifications (right-hand and left-hand threading options)
- Cone taper for secure fitting (10% conicity)
- Maximum and minimum dimensions for various components such as the ball, socket, and threaded parts
- Angular parameters for steering articulation (e.g., typical angle values like 40° and 20°)
Designation System
A clear naming convention is defined to identify steering ball joints according to size and angular characteristics, e.g., “Rotule de direction ISO 7803 - 30 - 40x20” identifies a joint with a 30 mm diameter and angles 40° and 20°.Technical Illustrations
The standard includes figures illustrating the shapes and reference quantities essential for manufacturing and inspection.Assembly and Functionality Notes
Guidelines ensure the contact between the cone parts of the ball and socket is effective, requiring contact over at least 60% of the cone surface for optimal performance.
Applications
ISO 7803:1987 is crucial for several practical applications including:
Commercial Vehicle Manufacturing
Ensuring that steering ball joints meet standardized dimensions facilitates compatibility across different manufacturers and spare parts suppliers, improving vehicle assembly and maintenance interoperability.Spare Parts Production
Standardizing ball joint dimensions helps manufacturers produce replacement parts that meet globally recognized quality and fit requirements.Quality Control and Testing
Automotive suppliers and vehicle manufacturers use this standard to verify steering ball joint dimensions during production quality assurance processes.Vehicle Maintenance and Repair
Mechanics and technicians rely on standardized specifications to select correct steering ball joints, ensuring vehicle safety and operational integrity.Design Engineering
Enables automotive engineers to design steering systems with confidence in the dimensional standards of ball joints, streamlining design validation and vehicle certification processes.
Related Standards
For comprehensive vehicle steering and suspension design, ISO 7803:1987 works in conjunction with other related standards such as:
ISO/TC 22 Vehicle Standards
Broader standards covering different aspects of road vehicle components, including steering systems.ISO 6559 - Mechanical Couplings for Vehicles
Addresses related components ensuring proper mechanical joining and alignment.ISO 3776 - Wheel and Axle Dimensions
Supports overall vehicle dimensional compatibility affecting steering geometry.Additional Thread and Fastening Standards
For thread specifications referenced in this standard, ISO thread series standards are relevant for ensuring correct thread forms and pitches.
Keywords: ISO 7803, steering ball joints, commercial vehicles, vehicle steering standards, automotive ball joint dimensions, ISO standards for vehicles, steering components, ball-socket assembly, vehicle maintenance, commercial road vehicles, automotive engineering.
ISO 7803:1987 - Commercial road vehicles -- Steering ball joints
ISO 7803:1987 - Véhicules routiers utilitaires -- Rotules de direction
ISO 7803:1987 - Véhicules routiers utilitaires -- Rotules de direction
Frequently Asked Questions
ISO 7803:1987 is a standard published by the International Organization for Standardization (ISO). Its full title is "Commercial road vehicles - Steering ball joints". This standard covers: Specifies the main dimensions of steering ball joints. The ball joint is considered as being a single piece with its socket, so the ball-socket assembly is specified. A figure illustrates shapes and reference quantities of concern. Tabulates parameters for nominal diameters from 27 up to 50 mm.
Specifies the main dimensions of steering ball joints. The ball joint is considered as being a single piece with its socket, so the ball-socket assembly is specified. A figure illustrates shapes and reference quantities of concern. Tabulates parameters for nominal diameters from 27 up to 50 mm.
ISO 7803:1987 is classified under the following ICS (International Classification for Standards) categories: 43.040.50 - Transmissions, suspensions. The ICS classification helps identify the subject area and facilitates finding related standards.
You can purchase ISO 7803:1987 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of ISO standards.
Standards Content (Sample)
ISO
INTERNATIONAL STANDARD
First edition
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION
ORGANISATION INTERNATIONALE DE NORMALISATION
MEXAYHAPOflHAfl OPrAHM3A~MR fl0 CTAH~APTM3A~MM
Commercial road vehicles - Steering ball joints
Whicules rou tiers utilitaires - Ro tules de direction
Reference number
ISO 7803 : 1987 (E)
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. Esch 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, govern-
mental and non-governmental, in liaison with ISO, also take patt in the work.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the ISO Council. They are approved in accordance with ISO procedures requiring at
least 75 % approval by the member bodies voting.
International Standard ISO 78Q3 was prepared by Technical Committee ISO/TC 22,
Road vehicles.
Users should note that all International Standards undergo revision from time to time
and that any reference made herein to any other International Standard implies its
latest edition, unless otherwise stated.
0 International Organkation for Standardkation, 1987
Printed in Switzerland
ISO 7803 : 1987 (E)
INTERNATIONAL STANDARD
Commercial road vehicles - Steering ball joints
1 Scope and field of applicati
...
ISO
NORME INTERNATIONALE
Première édition
1987-07-01
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION
ORGANISATION INTERNATIONALE DE NORMALISATION
MEXflYHAPOflHAÇl OPrAHM3A~Mfl f-l0 CTAH~APTVl3A~MM
Véhicules routiers utilitaires - Rotules de direction
Commercial road vehicles - Steering bal joints
Numéro de référence
ISO 7803 : 1987 (F)
Avant-propos
L’ISO (Organisation internationale de normalisation) est une fédération mondiale
d’organismes nationaux de normalisation (comités membres de I’ISO). L’élaboration
des Normes internationales est normalement confiée aux comités techniques de I’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 I’ISO participent également aux travaux.
Les projets de Normes internationales adoptés par les comités techniques sont soumis
aux comités membres pour approbation, avant leur acceptation comme Normes inter-
nationales par le Conseil de I’ISO. Les Normes internationales sont approuvées confor-
mément aux procédures de VIS0 qui requièrent l’approbation de 75 % au moins des
comités membres votants.
La Norme internationale ISO 7803 a été élaborée par le comité technique ISO/TC 22,
Véhicules routiers.
L’attention des utilisateurs est attirée sur le fait que toutes les Normes internationales
sont de temps en tenlps soumises à révision et que toute référence faite à une autre
Norme internationale dans le présent document implique qu’il s’agit, sauf indication
contraire, de la dernière édition.
0 Organisation internationale de normalisation, 1987
Imprimé en Suisse
ISO 7803 : 1987 (F)
NORME INTERNATIONALE
Véhicules routiers utilitaires - Rotules de direction
1 Objet et domaine d’application
La présente Norme internationale s
...
ISO
NORME INTERNATIONALE
Première édition
1987-07-01
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION
ORGANISATION INTERNATIONALE DE NORMALISATION
MEXflYHAPOflHAÇl OPrAHM3A~Mfl f-l0 CTAH~APTVl3A~MM
Véhicules routiers utilitaires - Rotules de direction
Commercial road vehicles - Steering bal joints
Numéro de référence
ISO 7803 : 1987 (F)
Avant-propos
L’ISO (Organisation internationale de normalisation) est une fédération mondiale
d’organismes nationaux de normalisation (comités membres de I’ISO). L’élaboration
des Normes internationales est normalement confiée aux comités techniques de I’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 I’ISO participent également aux travaux.
Les projets de Normes internationales adoptés par les comités techniques sont soumis
aux comités membres pour approbation, avant leur acceptation comme Normes inter-
nationales par le Conseil de I’ISO. Les Normes internationales sont approuvées confor-
mément aux procédures de VIS0 qui requièrent l’approbation de 75 % au moins des
comités membres votants.
La Norme internationale ISO 7803 a été élaborée par le comité technique ISO/TC 22,
Véhicules routiers.
L’attention des utilisateurs est attirée sur le fait que toutes les Normes internationales
sont de temps en tenlps soumises à révision et que toute référence faite à une autre
Norme internationale dans le présent document implique qu’il s’agit, sauf indication
contraire, de la dernière édition.
0 Organisation internationale de normalisation, 1987
Imprimé en Suisse
ISO 7803 : 1987 (F)
NORME INTERNATIONALE
Véhicules routiers utilitaires - Rotules de direction
1 Objet et domaine d’application
La présente Norme internationale s
...


















Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...