What type of testing/specifications are required by vehicle and engine manufacturers using OAD decouplers?
This comparison of three leading alternator pulley designs demonstrates the danger of using the wrong type of pulley on a vehicle requiring an OAD decoupler. Note the severe level of belt drive vibration (see whiplashing belt tensioner) when a SOLID PULLEY is installed on the belt drive system. Similarly, the use of an “OAP” (ONE-WAY CLUTCH) on this application also results in significant belt drive vibration, causing NVH issues and wear of key components. This footage shows a Litens OAD DECOUPLER on the same application. Note the smooth, efficient, low-stress operation of the belt drive system.
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