Could you tell me if the Tesla semi-truck has a transmission?

Most trucks have standard transmissions, but the Tesla Semi does not.

A set of four separate electric motors, one for each axle, are used instead.

These electric motors employ gear reductions to supply increased torque to the driving shafts,

allowing the truck to pull enormous loads with ease.

Because each motor can be controlled independently in terms of speed and torque, the driver never has to worry about shifting gears.

This reduces fatigue when driving and makes it so that drivers can provide more attention to keeping everyone on the road safe.

Overall, the absence of a traditional transmission improves performance, efficiency, and range.