ISO 19347:2015

Synchronous belt drives - Imperial pitch trapezoidal profile system - Belt and pulleys

ISO 19347:2015 specifies the principal characteristics of synchronous endless belts and pulleys for use in synchronous endless belt drives[1] for mechanical power transmission and where positive indexing or synchronization is required.

The principal characteristics includes the following:

a) belt nominal tooth dimensions;

b) belt length and width dimensions and tolerances;

c) belt length-measurement specifications;

d) pulley grooves dimensions and tolerances;

e) pulley dimensions and tolerances;

f) pulley quality specification.

[1] These drives have been known under various names in the past, for example: timing belt drives, positive belt drives, gear belt drives.

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