NLC Rigging Practice Exam 2025 - Free Rigging Practice Questions and Study Guide

The most common types of wear associated with chains involve stretching and wear at the end of each link. Over time, chains are subjected to repetitive loading and movement, which can cause individual links to elongate or stretch due to the forces applied during operation. This elongation affects the overall performance and efficiency of the chain, leading to issues such as improper meshing with sprockets and increased wear on the system.

Additionally, wear at the end of each link can occur as the chain interacts with other components. This wear can stem from friction as the chain moves, as well as from friction with the sprockets or guides it comes into contact with. This type of wear is particularly concerning because it can lead to decreased load-carrying capacity and eventual failure if not addressed.

Understanding these common types of wear is crucial for maintenance practices, as identifying signs of stretching or elongation early can prevent more significant issues and extend the life of the chain.