Which statement best describes the effect of proper belt tension and alignment on belt life?

• A. It maximizes belt contact and minimizes uneven wear.
• B. It increases wear on belt edges.
• C. It has no effect on belt wear.
• D. It reduces belt strength.

Answer: (A)

Proper belt tension and alignment directly influence belt life by ensuring full, even contact with the pulleys. When tension is correct and the belt tracks true, it sits evenly on the pulleys, distributing load across the belt width and reducing localized rubbing. This minimizes heat from slipping and prevents uneven wear that can cause edge wear or fraying. If tension is too loose, the belt will slip, generate excess heat, and wear faster. If tension is too tight, it places extra stress on bearings and the belt itself, shortening life. Misalignment or tracking issues make one edge rub against guides or pulleys, accelerating wear. So the best description is that proper tension and alignment maximize belt contact and minimize uneven wear.