How are roller chains specified?

Roller chains are specified primarily by the pitch and the diameter of the rollers. The pitch refers to the distance between the centers of two adjacent pins in the chain, which is a critical measurement for ensuring that the chain fits properly with its corresponding sprockets. The diameter of the rollers is also important because it influences how the chain interacts with the sprockets and affects the overall strength and performance of the chain.

Proper specification ensures compatibility with various devices and systems, allowing for effective transmission of power. The correct pitch ensures that the chain engages properly with the sprocket teeth, while the roller diameter ensures that the chain moves smoothly and efficiently through the system. This focus on pitch and roller diameter is essential for the reliability and durability of roller chains in mechanical applications.