China OEM Automotive Alternator Factory - Generator pulley lternator K406701 – RNA

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In short, it is a kind of clutch with self clutch function by using the speed change or rotation direction change of the driving and driven parts. Generally speaking, it is like the flywheel of a bicycle. When the cyclist doesn’t step on it, the bicycle slides forward, and your feet will never move with the rear wheel of the car. When the “flywheel” is stuck, your foot will slide with the rear wheel and move up and down. It can only rotate in one direction, and it will deadlock in the other direction. Therefore, when the overrunning clutch developed under the known technology and mechanism design is applied to the pulley, it is basically only one-way without two-way.

The OAP one-way pulley relieves the mass inertia of the generator from the non-uniformity of crank speed of the internal combustion engine. Therefore, during the uneven operation of the crank, only the acceleration phase will drive the generator shaft. When the accessory drive system of internal combustion engine reaches its functional limit under the following conditions, OAP will play its role and expand the extreme application conditions of the system.

Unidirectional alternator pulley is also called alternator overrunning pulley, which is called overrunning alternator pulley in English