single sided timing belt

A variable belt drive is a mechanical device that transmits power between shafts using a belt and pulley system that can be adjusted to change the tension and/or the diameter of the pulleys. This variability allows for different gear ratios, enabling machines to operate at various speeds and loads. Unlike fixed belt drives, which offer a single gear ratio, variable belt drives provide a more adaptable solution, making them suitable for applications where variable speed and torque are necessary.


...

The versatility of the 7PK belt makes it suitable for a wide range of applications. In the automotive industry, 7PK belts are commonly used as serpentine belts, which drive multiple peripheral devices such as alternators, power steering pumps, water pumps, and air conditioning compressors. The ability to control multiple functions with a single belt reduces the overall weight and complexity of the engine system, improving efficiency and reliability.


7pk belt

7pk

...