Broken axle: Symptoms: Wheels may fall off during high-speed driving. Wheel out-of-round will cause inaccurate dynamic balance, which manifests as high-speed steering wheel shake.

The half shaft, also called the drive shaft, is the shaft that connects the differential and the drive wheels. The half shaft is a shaft that transmits torque between the transmission reducer and the drive wheel. A universal joint at each of the inner and outer ends is connected to the reducer gear and the hub bearing inner ring through a spline on the universal joint.

Under the action of long-term torsional fatigue and impact forces, automobile half shafts are prone to bending, twisting and breaking, and spline teeth wear or skew, and other enemy obstacles. For semi-axial fractures, there are several types of morphology:

(1) The semi-axle blue disk falls off or cracks

(2) Fracture of shaft shaft

(3) Helical fracture of axle shaft

(4) Mixed fractures and cracks on the axle shaft

(5) Fracture at half-axis spline

(6) Fractures and cracks of other morphologies of the semi-axis