The inner tie rod end is a critical component in a vehicle's steering system, a type of universal joint that typically connects to the steering rack (or steering gearbox) and is used to link the steering mechanism to the wheels.

Structure and Function
The inner tie rod end consists of a steel ball and a socket. The steel ball can rotate freely within the socket, allowing for multi-angle movement. This ensures the smooth operation of the steering linkage. Its core functions are to transmit steering force and absorb vibrations, thereby ensuring vehicle stability during driving.

Location and Connection
The inner tie rod end is typically located between the steering rack and the outer tie rod end. It works in conjunction with the outer tie rod end to maintain the balance and proper alignment of the steering system.

Signs of Damage
If the inner tie rod end becomes worn or fails, it may lead to symptoms such as increased free play in the steering wheel, unusual noises when driving over bumps, or the vehicle pulling to one side during braking, necessitating timely replacement.