22/04/2022 Overrunning alternator pulleys: function and operation Overrunning clutches are crucial to increase the life of the accessory drive components. Before they were added to the design of the alternator pulley, alternators had a much lower output, a 60 Amp output was already a lot. Nowadays, with more electronics in the car, 60 Amp is less than a minimum alternator capacity. This evolution needed the new pulley to protect the belt from premature slip wear. In this article, we focus on overrunning alternator pulleys and overrunning alternator decouplers, explaining what these components are for, and how they work. More 18/03/2022 Evolution of the ABDS system: Micro-V® belts and tensioners More 28/01/2022 FleetRunner heavy-duty water pumps: technical guidance More 04/11/2021 The VVT system and the solenoid valve More 30/09/2021 Prevent water pump failure by flushing the cooling system More Read More News Discover Gates TechZone Watch this video and discover what information you can find on this technical portal for professional car mechanics. A higher level of tech support with Gates! To help increase workshop efficiency and reduce the number of expensive warranty claims, we provide installers with better system and product know-how.