How much of the belt span is the tension tester typically designed to deflect the V-Belt?

The tension tester for a V-belt is designed to deflect the belt by a specific amount to accurately measure belt tension. The correct answer, which indicates a deflection of 1/64 of the belt span, aligns with industry standards for proper tension measurement. This precise amount of deflection is critical because it allows for a consistent and reliable method to gauge whether the belt is properly tensioned without overstressing the belt, which could lead to premature wear or failure.

Such a slight deflection ensures that the test results are close to the desired operating tension of the belt, ensuring efficient power transmission in the system. Deflecting the belt any more than this specified amount could lead to inaccuracies in tension measurement and may even affect the longevity of the V-belt. Therefore, a deflection of 1/64 is seen as an appropriate and safe standard in mechanical power systems.