BS ISO 9980:2012

1   Scope This International Standard specifies the methods of checking the regularity of the grooves and pulleys for V-belts specified in the system based on effective width. The grooved pulleys can be designed for use with classical or narrow V-belts. The V-belts can be either single or joined units. It is intended to specify the inspection parameters and tolerances of grooved pulleys in future International Standards.