variable belt

In the world of mechanical power transmission, belts play a crucial role in transferring energy from one component to another. Among the various types of belts available, flat belts and V belts are two of the most widely used. Each type of belt has its own unique characteristics, advantages, and applications. This article delves into the details of flat belts and V belts, providing a comprehensive understanding of their features, functions, and suitable applications.


...

The term 4PK refers to a specific type of fan belt characterized by having four ribs on its inner surface. The PK designation indicates the design style, which is often found in multi-rib belts used for engaging multiple accessory components powered by the engine, such as the alternator, power steering pump, water pump, and air conditioning compressor. The ribs help to ensure a firm grip on the pulleys, enabling efficient power transfer and minimized slippage.


...