Zhuocheng Customized CNC Stainless Steel Milling Ball Head Bolt Sphere Head Screws

The ball head bolt is an important automobile component that can simultaneously realize the up and down movement of the bracket suspension system and the rotation movement of the steering system at one point.

In addition to friction, ball studs and ball stud seats also need to satisfy movement, durability, and reliability. There are two types of combinations of ball head bolts and ball head bolt seats: steel-on-steel and steel-on-plastic. Currently, cars mainly use the friction pair type of steel ball head bolts and plastic ball head bolt seats. Due to the repeated pressure and friction of the ball, the ball seat has problems such as poor lubrication, gradual failure, inability to turn correctly, and delayed turning. Therefore, the ball bearing surface must be wear-resistant and wear-resistant to ensure smooth operation and immediate steering. In addition to ensuring the wear resistance of the materials used for the balls and ball pin seats, special grease also needs to be added between the contact surfaces of the metal balls and ball pin seats. When poor lubrication occurs, abnormal wear and metal fatigue will occur between the ball and socket joints, resulting in looseness, uneven steering operation, increased noise, and shortened service life. In severe cases, it may directly endanger the driving safety of the car, such as being unable to turn correctly or turning slowly, etc.