What are the consequences of deformed steering knuckle bolts?

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07/30/25 10:13am
Deformation of the automobile steering knuckle (commonly known as the "sheep horn") can lead to abnormal front tire wear, poor steering return, easy damage to wheel bearings, and abnormal body noises. Below are relevant details: 1. Introduction: The automobile steering knuckle arm, colloquially called the "sheep horn," is one of the main components in the vehicle's steering system. It ensures stable driving and sensitive transmission of the driving direction, with the function of bearing the front load of the car, supporting and driving the front wheels to rotate around the kingpin for steering. 2. Function: During vehicle operation, it endures variable impact loads, thus requiring high strength. The steering knuckle serves as the hinge for wheel steering, typically shaped like a fork. The upper and lower forks have coaxial holes for installing the kingpin, and the steering knuckle journal is used to mount the wheel. The two ears with pin holes on the steering knuckle connect to the fist-shaped parts at both ends of the front axle via the kingpin, allowing the front wheels to pivot around the kingpin at a certain angle for steering. To reduce wear, bronze bushings are pressed into the steering knuckle pin holes, lubricated by grease injected through a grease nipple on the steering knuckle. For flexible steering, a bearing is installed between the lower ear of the steering knuckle and the fist-shaped part of the front axle.
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