v ribbed belt pulley

The auto drive belt, often referred to as the serpentine belt or accessory drive belt, plays a crucial role in the performance of modern vehicles. Despite its relatively small size, this essential component is responsible for transferring power from the engine's crankshaft to various engine accessories, such as the alternator, power steering pump, water pump, air conditioning compressor, and more. Understanding its function, maintenance, and the implications of a worn-out drive belt is important for any vehicle owner.


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A poly V belt, also known as a multi-ribbed belt, is designed with multiple grooves running along its length. This design allows for a larger surface contact area between the belt and the pulleys it engages with, leading to improved grip and reduced slippage. The poly V belt is often made from high-quality materials like neoprene or EPDM rubber, which provide excellent flexibility, durability, and resistance to temperature fluctuations. The 135 in the 135J6 designation refers to the belt's overall length in millimeters, while J6 corresponds to its specific profile and rib design.


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