serpentine belt

Poly V-belts, also known as ribbed belts or multi-rib belts, feature multiple ribs along their length, which increases the surface area in contact with the pulley. This design allows for higher torque transmission compared to traditional V-belts, making them ideal for compact applications where space is limited. Poly V-belts excel in environments demanding high-speed operations and have become a staple in automotive engines, household appliances, and industrial machinery.


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A PU V belt is a type of drive belt made from polyurethane. This material provides several advantages over traditional rubber belts, including higher durability, enhanced resistance to wear and tear, and the ability to handle a broader range of operating temperatures. PU V belts typically have a trapezoidal cross-section, which allows for better grip and efficiency in transferring power from the engine’s crankshaft to other components, such as the air conditioning compressor.


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The mechanism for varying the pulley diameter can take many forms, including adjustable sheaves or conical pulleys. By changing the effective diameter of the pulleys, the system can alter the speed ratio between the input and output. As the diameter of the driving pulley decreases, the speed of the driven pulley increases, and vice versa. This principle allows for smooth transitions in speed and ensures that the system can operate efficiently under varying loads.


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