The steering rack inner ball joint is a critical component within an automobile's steering system; its primary function is to connect the tie rod to the steering knuckle, thereby facilitating the transmission of steering forces and angular adjustment.
Ball Joint Housing: Typically manufactured from high-strength alloy steel, it features an internal spherical socket and undergoes surface hardening treatment to ensure wear resistance.
Ball Stud: A metal rod with a spherical end that articulates with the ball joint housing to form a spherical joint structure, allowing for multi-directional rotation (typically within an angular range of ±25° to 30°).
Dust Boot: Made of rubber or polyurethane, it seals in the internal lubricant and prevents the ingress of dust and contaminants.
Preload Spring: Provides initial pressure to eliminate internal clearance and maintain structural stability.
