A V-belt is a type of drive belt used in band saws and other machinery to transfer power from the motor to the drive wheel or other components. V-belts are characterized by their trapezoidal cross-section, which allows for increased contact area with the pulleys, resulting in improved grip and power transmission. V-belts require regular inspection and maintenance to ensure proper tension, alignment, and condition, preventing slippage, loss of power, or premature wear.