V-belt drive misalignment exists when the driver and driven sheaves are not properly aligned. Misalignment can take either the form of angular or parallel (offset) misalignment, or a combination of ...

Over-tensioning shortens not only the life of V-belts but also that of the sheaves, electric motor, and driven equipment bearings. In extreme cases, it can even bend or break a motor shaft.

Pulsating loads, such as those generated by internal combustion engines and compressors, present special problems for V-belt drives. Intermittent forces tend to produce a whipping motion in the belts ...