Roller chains are a type of mechanical chain that function by using a series of cylindrical plates that are interconnected by pins. These chains are commonly used in various industrial applications, such as manufacturing and transportation, due to their strength, durability, and reliability. The roller design allows for effective power transmission and smooth operation. The pitch, or distance between each pin, can vary depending on the specific application. Roller chains come in various lengths and widths and can be customized to suit different industry needs. They require periodic maintenance to ensure optimal performance and longevity. Overall, roller chains are an essential component in many industrial settings and are recognized for their efficiency, reliability, and durability.