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ISO 21342:2019

Synchronous belt drives — Automotive belts and pulleys ISO 21342:2019

Publication date:   Apr 30, 2019

General information

90.20 Standard under periodical review   Apr 15, 2024

ISO

ISO/TC 41/SC 4 Synchronous belt drives

International Standard

21.220.10   Belt drives and their components | 43.060.10   Engine block and internal components

Buying

Published

Language in which you want to receive the document.

Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 9010:1997

WITHDRAWN
ISO 9011:1997

NOW

PUBLISHED
ISO 21342:2019
90.20 Standard under periodical review
Apr 15, 2024