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Synchronous belt drives consist of a toothed belt which mates with grooved pulleys to provide a precise speed ratio between the driver and driven pulleys. This SAE Standard covers the synchronous belt and pulley sections currently in use in automotive applications such as camshaft, distributor, and other underhood drives that may require synchronization. It also provides for future sections to be added as usage develops.

To document test procedures and set-ups that address known failure modes for Accessory Drive automatic tensioners This SAE Standard does not encompass the pulley or pulley bearing. The sample sizes and acceptance criteria should be determined by agreement between the original equipment manufacturer (OEM) and the supplier. The failure modes to be addressed are: Test Factors include: NOTE: The Belt Drive Committee recommends that this spec be run using test parts that are close to the upper and lower specifications for load output and damping (tails testing).

To document test procedures and set-ups that address known failure modes for mechanical rotary tensioners and establish minimum acceptance criteria. This SAE Standard does not encompass the pulley or pulley bearing. The sample sizes should be determined by agreement between the original equipment manufacturer (OEM) and the supplier. The failure modes to be addressed are: a Durability Corrosion Contamination Structural Wear Temperature Alignment b Functional Clamp Load Damping Drop (Safety) Lift Lugs Load Noise Ozone Snap

This SAE Standard covers the dimensioning technique, tolerances, and methods of measurement of V-ribbed belts and mating pulleys for use on automotive accessory drives.