A used belt requires __________ belt deflection force than a new belt.

A used belt requires less belt deflection force than a new belt due to a few key factors related to the wear and aging of the material. Over time, a belt that has been installed and in operation typically experiences a combination of stretching, material softening, and changes in its physical properties.

As the belt wears, it can become more compliant, meaning it can more easily accommodate deflection with less force. This compliance reduces the force necessary to create the same amount of deflection compared to a new belt, which remains firm and has not yet undergone the stresses of regular operation.

Consequently, understanding how a belt's age and condition impact its physical characteristics is vital for maintenance practices, as it affects the adjustments needed for proper tension and performance in machinery. Proper tension is crucial for preventing slippage and ensuring optimal operational efficiency, which can be influenced by the condition of the belt.