What Are the Symptoms of a Faulty Car Half-Shaft?

[LaNathan]

Car half-shaft fault symptoms: 1. There may be sounds of metal friction or metal clashing; 2. There may be abnormal noises when turning the steering wheel fully to the left or right; 3. The car may experience severe vibrations during high-speed driving; 4. High-speed driving may lead to wheel detachment. The half-shaft, also known as the drive axle, is a solid shaft that transmits torque between the differential and the drive wheels. Its inner end is connected to the half-shaft gear via splines, while the outer end connects to the wheel hub. Modern cars commonly use two types of half-shafts based on their support types: full-floating and semi-floating. The full-floating half-shaft only transmits torque and does not bear any reaction forces or bending moments, making it widely used in various vehicles. The semi-floating half-shaft transmits torque while also bearing all reaction forces and bending moments, featuring a simple support structure and being widely used in passenger cars with relatively small reaction bending moments.