What is the problem with a car's steering wheel shaking?

[McCorbin]

Car steering wheel shaking can be divided into two types: idle shaking and driving shaking. When shaking occurs during idle, the main reasons are usually loose steering wheel bolts or rubber bushings. If the shaking occurs while the vehicle is in motion, the cause is mostly due to unbalanced wheel alignment. The steering wheel is connected to the steering shaft via splines, and its function is to convert the force applied by the driver on the edge of the steering wheel into torque, which is then transmitted to the steering shaft. Using a larger diameter steering wheel reduces the hand force required by the driver for steering. The steering drive shaft, acting as a connector between the steering gear and the steering shaft, facilitates the standardization of the steering gear, compensates for errors during manufacturing and installation, and makes the installation of the steering gear and steering wheel on the vehicle more reasonable.