ISO 7804:1985
(Main)Commercial road vehicles — Side openings for truck power take-offs
Commercial road vehicles — Side openings for truck power take-offs
Establishes the dimensions of side openings for truck power take-offs. These specifications are applicable for all general installations of power take-offs on the transmission gearbox of trucks and tractors where the size of the transmission permits. Some figures illustrate shapes and reference quantities of concern.
Véhicules routiers utilitaires — Fenêtre latérale pour prise de puissance sur camion
La présente Norme internationale fixe les dimensions des fenêtres latérales pour prises de puissance (p.d.p.) sur camions. Ces spécifications sont applicables, en général, pour toutes les installations de prise de puissance sur boîte de vitesses des camions et des tracteurs, quand les dimensions de cette boîte le permettent.
General Information
- Status
- Published
- Publication Date
- 30-Oct-1985
- Current Stage
- 9020 - International Standard under periodical review
- Start Date
- 15-Jan-2026
- Completion Date
- 15-Jan-2026
Overview
ISO 7804:1985 is an international standard developed by the International Organization for Standardization (ISO) that specifies the dimensions of side openings for power take-offs (PTOs) on commercial road vehicles, specifically trucks and tractors. The standard applies to the general installations of PTOs on the transmission gearboxes of trucks and tractors, provided the transmission size allows for these openings. It ensures uniformity and compatibility in PTO interface dimensions, facilitating easier installation, maintenance, and operational safety of PTO components across different vehicle manufacturers and models.
This standard is essential for vehicle manufacturers, gearbox producers, and body builders who design and install PTO systems, ensuring interoperability and adherence to global practices in commercial vehicle design.
Key Topics
Scope and Applicability
ISO 7804:1985 covers side openings on commercial road vehicles that accommodate power take-offs mounted on transmission gearboxes. It applies where transmission size permits and covers typical configurations on trucks and tractors.Side Opening Types
The standard defines two main types of side openings based on their intended duty and bolt specifications:- Type R (Regular Duty) with 6 bolts M10
- Subtypes R1 and R2 differ by gear depth specifications.
- Type H (Heavy Duty) with 8 bolts M12
- Subtypes H1 and H2 designate different gear depths.
- Type R (Regular Duty) with 6 bolts M10
Gear Depth Definitions
Gear depth refers to the distance from the transmission face to the pitch line of the PTO drive gear, defined specifically for each subtype.Dimensional Specifications
The standard provides detailed dimensional drawings illustrating exact measurements, locations of bolt holes, dowel holes, and shape profiles to ensure interchangeability. It also clarifies that gearbox manufacturers specify gear data and backlash.Designation System
A standardized naming convention for PTO openings helps in classification and identification, such as ISO 7804-R1 for a 6 bolt M10 side opening with a specific gear depth.
Applications
Truck and Tractor Manufacturing
Vehicle manufacturers use ISO 7804 to design transmission gearboxes that accommodate standard PTO fittings, enabling compatibility with a wide range of auxiliary equipment such as pumps, winches, and compressors.PTO Equipment Design
Manufacturers of power take-off components rely on these dimensional standards to create devices that fit universally in line with ISO specifications.Maintenance and Repair
Service providers benefit from standardized dimensions when replacing or modifying PTO side openings on trucks or tractors, reducing downtime and simplifying parts sourcing.Custom Vehicle Body Building
Bodybuilders who fit specialized bodies and PTO-driven implements for commercial vehicles ensure compliance with ISO 7804 to maintain system integrity and enhance operational safety.
Related Standards
ISO/TC 22 - Road Vehicles
ISO 7804 was developed by this technical committee managing standards related to commercial road vehicles, indicating potential cross-references to other vehicle component standards.Gearbox and Transmission Standards
While ISO 7804 focuses on the PTO side opening dimensions, related ISO standards cover gearbox design, power transmission, and mounting interfaces that coordinate with this specification.Vehicle Power Take-Off Standards
Other industry standards address PTO operational performance, mechanical strength, and safety requirements complementing the dimensional focus of ISO 7804.
Adhering to ISO 7804:1985 ensures that truck power take-offs have standardized side openings, enhancing equipment compatibility, simplifying installations, and supporting international harmonization in commercial vehicle design. This promotes operational efficiency and safer integration of PTO-driven systems in the trucking and agricultural machinery industries.
ISO 7804:1985 - Commercial road vehicles -- Side openings for truck power take-offs
ISO 7804:1985 - Véhicules routiers utilitaires -- Fenetre latérale pour prise de puissance sur camion
ISO 7804:1985 - Véhicules routiers utilitaires -- Fenetre latérale pour prise de puissance sur camion
Frequently Asked Questions
ISO 7804:1985 is a standard published by the International Organization for Standardization (ISO). Its full title is "Commercial road vehicles — Side openings for truck power take-offs". This standard covers: Establishes the dimensions of side openings for truck power take-offs. These specifications are applicable for all general installations of power take-offs on the transmission gearbox of trucks and tractors where the size of the transmission permits. Some figures illustrate shapes and reference quantities of concern.
Establishes the dimensions of side openings for truck power take-offs. These specifications are applicable for all general installations of power take-offs on the transmission gearbox of trucks and tractors where the size of the transmission permits. Some figures illustrate shapes and reference quantities of concern.
ISO 7804:1985 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.
ISO 7804:1985 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
International Standard
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION.MEIK,lJYHAPO~HAR OPTAHM3ALWlR fl0 CTAH~APTM3AlJ’lM.ORGANISATlON INTERNATIONALE DE NORMALISATION
Commercial road vehicles - Side openings for truck
power take-offs
Whicules reu tiers u tilitaires - Fen&e lattkale pour Prise de puissance sur camion
First edition - 1985-11-01
Ref. No. ISO 7804-1985 (E)
UDC 629.11.013 : 629.114.4
z
-
Descriptors : road vehicles, commercial road vehicles, power take-off, openings, classification, designation, dimensions.
Price based on 4 pages
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 part 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 7804 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
Jatest edition, unless otherwise stated. -
0 International Organkation for Standardkation, 1985
Printed in Switzerland
INTERNATIONAL STANDARD ISO 7804-1985 (E)
Commercial road vehicles - Side openings for truck
power take-offs
1 Scope and field of application 3.2 Type R
Type R shall have one of the following gear depths :
This International Standard lays down the dimensions of side
openings for truck power take-offs. These specifications are
applicable for all general installations of power take-offs on the - Type Rl : 20 If: 10 mm
transmission gear box of tru
...
Norme internationale
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION.MElK&YHAPO,lJHAR OPf-AHM3AL&lR Il0 CTAH~APTkl3AL&Wl.ORGANISATlON INTERNATIONALE DE NORMALISATION
Véhicules routiers utilitaires - Fenêtre latérale pour prise
de puissance sur camion
Commercial road vehicles - Side openings for truck power take-offs
Première 6dition - 1985-l l-01
CDU 629.11.013 : 629.114.4 Réf. no : ISO 7804-1985 (FI
véhicule routier utilitaire, prise de mouvement, ouverture, classification, désignation, dimension.
Descripteurs : véhicule routier,
Prix basé sur 4 pages
Avant-propos
L’ISO (Organisation internationale de normalisation) est une federation mondiale
d’organismes nationaux de normalisation (comités membres de I’ISO). L’élaboration
des Normes internationales est confiée aux comités techniques de I’ISO. Chaque
comité membre interesse par une étude a le droit de faire partie du comite technique
créé a cet effet. Les organisations internationales, gouvernementales et non gouverne-
mentales, 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-
mement aux procédures de I’ISO qui requièrent l’approbation de 75 % au moins des
comités membres votants.
internationale ISO 7804 a et6 élaborée par le comité technique ISO/TC 22,
La Norme
Whicules routiers.
L’attention des utilisateurs est attirée sur le fait que toutes les Normes internationales
sont de temps en temps 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 derniére édition.
0 Organisation internationale de normalisation, 1985
Imprimé en Suisse
NORME INTERNATIONALE ISO 7804-1985 (F)
Véhicules routiers utilitaires - Fenêtre latérale pour prise
de puissance sur camion
1 Objet et domaine d’application 3.2 Type R
La présente Norme internationale fixe les dimensions des fenê-
Le type R doit avoir l’une des profondeurs suivantes :
tres latérales pour prises de puissance (p.d.p.) sur camions.
Ces spécifications sont applicables, en général, pour toutes les - Type Rl : 20 $r 10 mm ’
.
installations de prise de puissance sur boîte de vitesses des
camions et des tract
...
Norme internationale
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION.MElK&YHAPO,lJHAR OPf-AHM3AL&lR Il0 CTAH~APTkl3AL&Wl.ORGANISATlON INTERNATIONALE DE NORMALISATION
Véhicules routiers utilitaires - Fenêtre latérale pour prise
de puissance sur camion
Commercial road vehicles - Side openings for truck power take-offs
Première 6dition - 1985-l l-01
CDU 629.11.013 : 629.114.4 Réf. no : ISO 7804-1985 (FI
véhicule routier utilitaire, prise de mouvement, ouverture, classification, désignation, dimension.
Descripteurs : véhicule routier,
Prix basé sur 4 pages
Avant-propos
L’ISO (Organisation internationale de normalisation) est une federation mondiale
d’organismes nationaux de normalisation (comités membres de I’ISO). L’élaboration
des Normes internationales est confiée aux comités techniques de I’ISO. Chaque
comité membre interesse par une étude a le droit de faire partie du comite technique
créé a cet effet. Les organisations internationales, gouvernementales et non gouverne-
mentales, 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-
mement aux procédures de I’ISO qui requièrent l’approbation de 75 % au moins des
comités membres votants.
internationale ISO 7804 a et6 élaborée par le comité technique ISO/TC 22,
La Norme
Whicules routiers.
L’attention des utilisateurs est attirée sur le fait que toutes les Normes internationales
sont de temps en temps 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 derniére édition.
0 Organisation internationale de normalisation, 1985
Imprimé en Suisse
NORME INTERNATIONALE ISO 7804-1985 (F)
Véhicules routiers utilitaires - Fenêtre latérale pour prise
de puissance sur camion
1 Objet et domaine d’application 3.2 Type R
La présente Norme internationale fixe les dimensions des fenê-
Le type R doit avoir l’une des profondeurs suivantes :
tres latérales pour prises de puissance (p.d.p.) sur camions.
Ces spécifications sont applicables, en général, pour toutes les - Type Rl : 20 $r 10 mm ’
.
installations de prise de puissance sur boîte de vitesses des
camions et des tract
...
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