The rear axle half shaft is also called the transaxle.

The rear axle half shaft is a solid shaft that transmits torque between the differential and the drive wheel, and the inner end is generally connected to the rear axle side gear through a spline, and the outer end is connected to the hub. Depending on the type of support, there are two types, full float and semi-floating.

The full-floating rear axle half shaft transmits torque only and does not bear any reaction forces and bending moments, so it is widely used in various types of vehicles. Easy to disassemble, just pull out the bolts on the flange to pull out, and the wheel and axle housing can still support the car, which brings convenience to the car maintenance.

The semi-floating rear axle half shaft transmits both torque and full reaction and bending moments. Its support structure is simple and low in cost, so it is widely used in various types of cars with small reaction bending moments. However, such a rear axle half shaft support is troublesome to be removed, and if the rear axle half shaft is broken during driving, the risk of the wheels flying off is easily caused.

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