ISO/R 99:1959
(Main)Title missing - Legacy paper document
Title missing - Legacy paper document
General Information
- Status
- Withdrawn
- Publication Date
- 31-Dec-1958
- Technical Committee
- ISO/TMBG - Technical Management Board - groups
- Drafting Committee
- ISO/TMBG - Technical Management Board - groups
- Current Stage
- 9599 - Withdrawal of International Standard
- Start Date
- 01-Jan-1964
- Completion Date
- 14-Feb-2026
Relations
- Effective Date
- 28-Feb-2023
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ISO/R 99:1959 - Title missing - Legacy paper document Released:1/1/1959
ISO/R 99:1959 - Title missing - Legacy paper document Released:1/1/1959
Frequently Asked Questions
ISO/R 99:1959 is a standardization document published by the International Organization for Standardization (ISO). Its full title is "Title missing - Legacy paper document". This standard covers: Title missing - Legacy paper document
Title missing - Legacy paper document
ISO/R 99:1959 has the following relationships with other standards: It is inter standard links to ISO 10438-4:2003. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
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Standards Content (Sample)
UDC 621.8511.852
Ref. No.: IS0 / R 99 1959 (E)
IS0
I N T ERN AT1 O N A L O RG A N I ZATl O N FOR STA N DA RD IZATl O N
IS0 RECOMMENDATION
R 99
DIAMETERS OF PULLEYS
FOR FLAT TRANSMISSION BELTS
1st ED IT1 O N
February 1959
COPYRIGHT RESERVED
The copyright of IS0 Recommendations and IS0 Standards
belongs to IS0 Member Bodies. Reproduction of these
documents, in any country, may be authorized therefore only
by the national standards organization of that country, being
a member of ISO.
For each individual country the only valid standard is the national standard of that country.
Printed in Switzerland
Also issued in French and Russian. Copies to be obtained through the national standards organizations.
BRIEF HISTORY
The IS0 Recommendation R 99, Diameters of Pulleys for Flat Transmission Belts,
was drawn up by Technical Commmittee ISO/TC 41, Pulleys and Belts (including Vee-
Belts), the Secretariat of which is held by the Association Française de Normalisation
(AFNOR).
It was at its third meeting, held in Stockholm, in June 1955, that the Technical Com-
mittee unanimously adopted by the delegates present the resolution on which this IS0
Recommendation is based.
At the end of the Stockholm meeting, a draft proposal was distributed to the members O
of the Technical Committee. The comments formulated during this enquiry were examined
by the appropriate Working Group which met in Munich, in October 1956, and proposed
a few modifications. A second draft proposal was then distributed to the members of
the Technical Committee and was adopted as a Draft IS0 Recommendation.
On 16 May 1957, the Draft IS0 Recommendation was distributed to all the IS0
Member Bodies and was approved, without reserve, by the following 24 (out of a total
of 38) Member Bodies:
*Austria Germany Romania
Belgium *Greece Spain
*Bulgaria *India Sweden
*Canada *Ireland Switzerland
Czechoslovakia Italy Union of South Africa
Japan United Kingdom
Denmark
Finland Pakistan U.S.A.
France *Portugal U.S.S.R.
O
No Member Body opposed the approval of the Draft.
The Draft IS0 Recommendation was then submitted by correspondence to the IS0
Council, which decided, in February 1959, to accept it as an IS0 RECOMMENDATION.
* These Member Bodies stated that they had no objection to the Draft being approved.
-2-
IS0 / R 99 - 1959 (E)
IS0 Recommendation R 99 February 1959
DIAMETERS OF PULLEYS
FOR FLAT TRANSMISSION BELTS
1. PURPOSE
This IS0 Recommendation lays down the diameters and tolerances of pulleys for flat
transmission belts. *
2. DEFINITION
The diameter of a pulley for a flat transmission belt is the diameter measured in the plane
of symmetry of its rim.
3. DIAMETERS
TABLE 1. - Series of diameters
Millimetres
Inches Millimetres
40 1.6 160
...
RECOMMANDATION IS0
O
R 99
DIAMETRES DES POULIES
POUR COURROIES PLATES DE TRANSMtSSfQN
we EDITION
F6vrier 1959
REPRODUCTION INTERDITE
Le droit de reproduction des Recommandations IS0 et des Normes
IS0 est la propriété des Comités Membres de I’ISO. En consé-
quence, dans chaque pays, la reproduction de ces documents ne
peut être autorisk que par l’organisation nationale de normali-
sation de ce pays, membre de 1’ISO.
Seules les normes nationales sont valables dans leurs pays respectifs.
Imprim6 en Suisse
Ce document est également édité en anglais et en russe. I1 peut &re obtenu aqw&s des organisations
nationales de normalisation.
HISTORIQUE
La Recommandation ISO/R 99, Diamètres des poulies pour courroies plates de trans-
mission, a été élaborée par le Comité Technique ISO/TC 41, Poulies et courroies (y compris
les courroies trapt+zoïdales) , dont le Secrétariat est assuré par l’Association Française de
Normalisation (AFNOR).
C’est au cours de sa troisième réunion, tenue à Stockholm, en juin 1955, que le Comité
Technique adopta, à l’unanimité des délégations présentes, la résolution ayant servi de base
à la présente Recommandation ISO.
A l’issue de la réunion de Stockholm, un avant-projet fut distribué aux membres du
Comité Technique. Les observations formulées lors de cette enquête furent examinées par
le Groupe de Travail compétent, qui se réunità Munich, en octobre 1956, et proposa quelques
modifications. Un second avant-projet fut alors distribué aux Membres du Comité Tech-
nique et fut adopté comme Projet de Recommandation ISO.
En date du 16 mai 1957, le Projet de Recommandation IS0 fut distribué à tous les
Comités Membres de 1’ISO et approuvé, sans réserve, par les Comités Membres suivants
(au nombre de 24 sur un total de 38):
Allemagne France Roumanie
*Autriche *Grèce Royaume-Uni
Belgique *Inde Su&de
*Bulgarie “Irlande Suisse
*Canada Italie Tchécoslovaquie
Danemark Japon Union Sud-Africaine
Espagne Pakistan U.R.S.S.
Finlande *Portugal U.S.A.
Aucun Comité Membre ne se déclara opposé à l’approbation du Projet.
Le Projet de Recommandation IS0 fut alors soumis par correspondance au Conseil
de 1’ISO qui décida, en février 1959, de l’accepter comme RECOMMANDATION ISO.
* Ces ComitBs Membres ont dBclarB qu’ils n’avaient pas d’objection ?t formuler contre l’approbation du Projet.
-2-
I
IS0 / R 99 - 1959 (F)
Recommandation IS0 R 99 F6vrier 1959
DIAmTRES DES POULIES
POUR COURROIES PLATES DE TRANSMISSION
1. OBJET
La présente Recommandation IS0 fixe les diamètres et les tolérances des poulies pour
courroies plates de transmission *.
2. DEFINITION
Le diamètre d’une poulie pour courroie plate de transmission est le diamètre mesuré dans
le plan de symétrie de sa jante.
3. DIAMETRES
TABLEAU 1. - SBrie de diamhtres
Millimetres Inches Millimetres Inches
40 630 25
710 28
7,1
50 8 800 31,5
56 9 900 35,5
63 1 O00 40
71 11,2 1120 45
...
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