ISO 8370-2:1993

Belt drives — Dynamic test to determine pitch zone location — Part 2: V-ribbed belts

The principle of the method specified is calculation of the pitch diameter of the belt operating in the pulley on a test fixture by measuring the rotational frequency of the pulley and either the belt velocity over a straight span or the centre distance between the pulleys and the time of rotation of the belt, and calculation of the effective line differential.