The narrow cogged v-belt is a kind of v-belt which is used for the gear transmission.
And it is a narrow v-belt. Made of rubber with cogs or nubs running all along the inside of it, the narrow cogged v-belt is designed to interlock with grooves or notches on the drive pulley. This interlocking design allows the narrow cogged v-belt to operate without slippage even at high engine speeds. The narrow cogged v-belt can turn engine accessories without the fear of failure or slippage traditional rubber v-belts are known for. The main advantage of the narrow cogged v-belt is that it can run at higher engine speeds and pull a greater load with the least tension placed against it.