Tagavõll

Tagavõll is an Estonian term that translates to "drive shaft" in English. It refers to a mechanical component that transmits torque from a power source to another part of a machine. In the context of vehicles, a tagavõll is crucial for transferring rotational power from the transmission to the differential, which then distributes it to the wheels.

The design of a tagavõll can vary depending on the application. It is typically a rigid rod, often made of steel, which may be solid or hollow. For longer distances or when the connection points are not perfectly aligned, flexible joints such as universal joints or constant velocity (CV) joints are incorporated into the tagavõll assembly. These joints allow for angular and axial movement, preventing stress on the drivetrain components.

In rear-wheel-drive vehicles, a single tagavõll connects the transmission to the rear differential. All-wheel-drive and four-wheel-drive systems often employ multiple tagavõllid, including front and rear shafts, and sometimes intermediate shafts, to distribute power to all wheels. The proper functioning of the tagavõll is essential for a vehicle's mobility and performance. Issues like vibrations, noise, or a loss of power can indicate a problem with the tagavõll or its associated components.