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ISO 21342:2019

Synchronous belt drives -- Automotive belts and pulleys

General information
Valid from 30.04.2019
Directives or regulations
None

Standard history

Status
Date
Type
Name
30.04.2019
Main
10.04.1997
Main
10.04.1997
Main
This document specifies the characteristics of synchronous endless belts and their related pulleys for use in automotive applications such as engine camshaft drives.
The characteristics include:
-  belt pitch spacing;
-  belt nominal tooth dimensions;
-  belt width and width tolerance;
-  belt pitch length and pitch length tolerance;
-  pulley groove dimensions and tolerances;
-  pulley tolerances and quality specifications.
Test methods for measuring belt pitch length and lateral runout are also included.
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