ISO 21342 is an international standard on road vehicles that discusses belts & pulley drive. ISO 21342 specifies the characteristics of synchronous endless belts and their related pulleys for use in automotive applications such as engine camshaft drives.
The characteristics include:
NOTE: Test methods for measuring belt pitch length and lateral runout are also included.
ISO 21342 on automotive belts and pulleys is useful for:
A drive belt is a single, continuous belt used by automotive engines to rotate multiple peripheral devices in the engine and the belt is allowed to pass over pulleys that are designed to fitly enclose the belt to avoid slipping.
ISO 21342 provides the profiles for synchronous drives for automotive applications and determines belt designation which is designated by a series of numbers and letters.
ISO 21342 navigates you through the belt dimensions and tolerances that includes the nominal belt tooth dimensions for:
The pitch length of a synchronous belt is determined in ISO 21342 by placing the belt on a measuring fixture.
The lateral run out of a synchronous belt and pulleys can be measured using the mechanism described in ISO 21342.
ISO 21342 provides guidance on pulley types, pulley designation, pulley groove profile and pulley dimensions and tolerances for a synchronous drive for automobiles.
Overall, ISO 21342 can help you design synchronous belts and pulleys for road vehicles to safeguard machinery from overload and jamming, as well as to increase or decrease the pace of its powers, convey rotational motion, and transport heavy loads with ease. With obedience and compliance to ISO 21342, you can achieve precision in terms of product functionality.
ISO 21342