v belt pulley sizes

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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The term 4PK describes a specific type of serpentine belt characterized by four ribs on its inner surface. This ribbing provides excellent grip and ensures the efficient transfer of power from the engine to various accessories, such as the alternator, power steering pump, water pump, and air conditioning compressor. This design allows for enhanced stability and reliability under varying operational conditions, making it a preferred choice in many modern vehicles.


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