A Pulley is a Power Transmission wheel on an axle or shaft that is designed to support movement and change of direction of a taut cable or belt along its circumference. Pulleys are Power Transmission Equipments used in a variety of ways to lift loads, apply forces, and to transmit power. In nautical contexts, the assembly of wheel, axle, and supporting shell is referred to as a block in Power Transmission Systems. sourcensave is an Online One Stop Shop for all pulleys and Power Transmission Systems and allows you to shop from a variety of Top Genuine Brands like Fenner etc. sourcensave aims to bring about a significant transformational change in the Indirect material supply chain by cutting down inefficiencies and bringing in predictability through a suite of value added services.