What is the correct deflection for a V-belt over a distance between the axles?

The correct deflection for a V-belt over a distance between the axles is typically 1/64" for every foot of span. This measurement is important in ensuring proper tension and alignment of the belt, which affects its performance and longevity.

When the deflection is set at 1/64" per foot, it provides an ideal balance where the belt is neither too tight nor too loose. An excessive tension can lead to increased wear on both the belt and the pulleys, while an inadequate tension might cause slippage or inefficient power transmission. Thus, adhering to the specified deflection is crucial for optimal operation in mechanical systems utilizing V-belts.

Options that present different deflections either suggest settings that could risk damaging the belt or may not provide sufficient grip during operation, making them less suitable for standard practices in belt installation and maintenance.