Roller Chains, within the Belts & Chains subcategory of the Power Transmission category, are durable mechanical components used to transmit mechanical power across various machinery. These chains consist of a series of short cylindrical rollers held together by side links, which roll on sprocket gears, reducing friction and wear. Commonly used in machinery such as conveyors, automobiles, and agricultural equipment, roller chains are known for their strength and efficiency in transferring motion and load. They handle varying speeds and loads effectively, making them a reliable choice for many industrial and mechanical applications.