Pulleys, also known as sheaves, are an essential item in a leaf chain system. It is a crucial moving part as an incorrectly designed pulley will have a big impact on performance and the working life of the equipment or the chain, or both. Pulleys should be designed to allow the chain free movement as the ram moves up and down. Ideally, they should be designed to last the lifetime of the machine they are being installed on (unless design criteria dictate otherwise).
Leaf chain anchor bolts are a crucial part of a leaf chain assembly – if they are not designed without considering all the relevant factors then they may not conform to industry standards or they may even fail. Here are the main considerations when designing an anchor bolt for use with a leaf chain.