When turning the steering wheel, what component is connected to the end of the steering shaft that helps assist with turning?

The component connected to the end of the steering shaft that aids in steering assistance is the worm gear. In a traditional steering mechanism, the worm gear plays a crucial role in converting the rotational motion of the steering wheel into the linear motion needed to turn the wheels. The worm gear's design allows for high torque ratios, which means that when the driver turns the steering wheel, the worm gear engages with a corresponding gear that ultimately translates that motion into movement of the vehicle’s wheels.

This mechanism not only helps facilitate smoother steering but also provides the necessary mechanical advantage to allow for easier turning of the vehicle, especially at slower speeds. The interaction between the worm gear and its counterparts creates a system that enhances the driver's control over the steering response.

Other components such as the pinion gear, the rack, and the steering column are integral parts of the steering system, but they serve different roles. The pinion gear acts as part of the gear mechanism, while the rack translates the pinion’s movement into wheel movement. The steering column primarily serves as the connecting rod from the steering wheel to the steering mechanism but does not directly assist with the mechanical turning advantage provided by the worm gear.