V-belts reduce slippage and alignment problems of other types of belts. They allow for the best service life through a good combination of traction, speed, and load. They are usually endless and the cross-section has a trapezoidal shape. The “V” shape of the belt rides in a groove of a sheave or pulley. The belt wedges into the groove more as the load increases, which improves the transmission of torque and making the V-belt an efficient solution.