ISO 21342
Synchronous belt drives — Automotive belts and pulleys
| Organization: | ISO |
| Publication Date: | 1 May 2019 |
| Status: | active |
| Page Count: | 26 |
| ICS Code (Engine block and internal components): | 43.060.10 |
| ICS Code (Belt drives and their components): | 21.220.10 |
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.
Document History