Jõuvõll

Jõuvõll, often translated as driveshaft or propeller shaft, is a mechanical component that transmits torque and rotation from a power source to another part of a machine. Its primary function is to connect the transmission or differential to the wheels or other output mechanisms. In automotive applications, the driveshaft is crucial for delivering power from the engine and transmission to the drive wheels, enabling the vehicle to move.

A typical driveshaft consists of a tube or solid rod, with universal joints or CV (constant velocity) joints at each end. These joints allow for changes in angle and distance between the connected components, which are necessary due to the movement of the suspension and the flexing of the vehicle chassis. Universal joints are common in older or simpler rear-wheel-drive vehicles, while CV joints are generally found in front-wheel-drive and all-wheel-drive vehicles due to their ability to transmit torque smoothly at greater angles and under load.

The length and diameter of a driveshaft are determined by the specific application and the amount of torque it needs to transmit. Materials used can vary, but steel is common for its strength and durability. In some cases, composite materials like carbon fiber are used to reduce weight and increase stiffness, which can improve performance and fuel efficiency. Proper balancing of the driveshaft is essential to prevent vibrations at high speeds, ensuring a smooth and stable operation of the connected machinery.