Truck tensioner for international navistar

The three main serpentine pulley types are used to provide motion to a system, to power accessories or to provide tension. Drive pulleys typically have the heaviest construction of the three and often include a in automobile applications. Accessory pulleys can be either smooth or grooved and exist to use the motion of a serpentine belt to power various devices. Tensioner pulleys typically are needed to ensure that the belt does not slip. Depending on the configuration of a system, a might also be either smooth or grooved.

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