rubber drive belts

The term PK belt refers to a type of V-belt used in automotive and industrial applications. The “PK” designation indicates the belt's size and width, while “ ” signifies a specific measurement standard. These belts are designed to transmit power efficiently between pulleys by relying on friction. PK belts are particularly known for their durability and strength, making them suitable for various engine applications, from alternators and water pumps to air conditioning systems and power steering.


...

The performance of Poly V belts is heavily dependent on the materials used in their construction. Generally, Poly V belts are made from a combination of high-quality synthetic rubber compounds, polyester, and sometimes even aramid fibers. The rubber components provide flexibility and durability, allowing the belts to bend and flex around pulleys without strain. Polyester cords enhance strength and tensile stability, ensuring that the belts can withstand high loads and resist elongation over time. In high-performance applications, aramid fibers may be incorporated for their exceptional strength-to-weight ratio and resistance to wear and tear.


...