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There are several types of drive belts used in cars, the most common being the serpentine belt and the V-belt. The serpentine belt is a long, continuous belt that winds around multiple engine components, including the alternator, power steering pump, water pump, and air conditioning compressor. It operates by friction, allowing it to drive these accessories simultaneously. The serpentine belt is favored in modern vehicles due to its smaller size, lighter weight, and ability to efficiently power several components at once.


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The V-ribbed belt features multiple grooves or ribs that run parallel to its length. This design allows for increased surface area and improved grip, enabling it to transfer torque efficiently between the engine and various accessories such as the alternator, power steering pump, water pump, and air conditioning compressor. Due to its ribbed construction, the belt can accommodate a variety of pulleys while maintaining optimal traction and minimizing slippage.


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